diff --git a/Upstream/.cproject b/Upstream/.cproject
index 1a89563..b1c7159 100755
--- a/Upstream/.cproject
+++ b/Upstream/.cproject
@@ -108,7 +108,7 @@
 						</toolChain>
 					</folderInfo>
 					<sourceEntries>
-						<entry excluding="Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_storage_template.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_usart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pccard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nor.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nand.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_iwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_irda.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma2d.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_can.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_msp_template.c|Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_conf_template.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+						<entry excluding="Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.c|Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_storage_template.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_usart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pccard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nor.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nand.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_iwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_irda.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma2d.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_can.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_msp_template.c|Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_conf_template.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
 					</sourceEntries>
 				</configuration>
 			</storageModule>
@@ -227,7 +227,7 @@
 						</toolChain>
 					</folderInfo>
 					<sourceEntries>
-						<entry excluding="Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_storage_template.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_usart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pccard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nor.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nand.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_iwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_irda.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma2d.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_can.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_msp_template.c|Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_conf_template.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+						<entry excluding="Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.c|Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_storage_template.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fmc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_usart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_smartcard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pccard.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nor.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_nand.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_ltdc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_iwdg.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_irda.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2s_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_eth.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma2d.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cryp_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_can.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc_ex.c|Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_msp_template.c|Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_conf_template.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
 					</sourceEntries>
 				</configuration>
 			</storageModule>
diff --git a/Upstream/.settings/language.settings.xml b/Upstream/.settings/language.settings.xml
index ff49345..e0f7243 100755
--- a/Upstream/.settings/language.settings.xml
+++ b/Upstream/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1683135697176326939" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1687181002117189685" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1645847539306661941" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1669631317434636379" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/Upstream/Debug/Upstream.elf b/Upstream/Debug/Upstream.elf
index 122626a..ef75167 100755
Binary files a/Upstream/Debug/Upstream.elf and b/Upstream/Debug/Upstream.elf differ
diff --git a/Upstream/Debug/Upstream.hex b/Upstream/Debug/Upstream.hex
index ce30df6..b568d77 100644
--- a/Upstream/Debug/Upstream.hex
+++ b/Upstream/Debug/Upstream.hex
@@ -1,29 +1,29 @@
 :020000040800F2
-:1000000000C00120F53600084137000841370008DC
-:100010004137000841370008413700080000000060
-:100020000000000000000000000000004137000850
-:100030004137000800000000413700080D070008A4
-:1000400041370008413700084137000841370008B0
-:1000500041370008413700084137000841370008A0
-:100060004137000841370008413700084137000890
-:100070004137000841370008413700084137000880
-:100080004137000841370008413700084137000870
-:100090004137000841370008413700084137000860
-:1000A0004137000841370008413700084137000850
-:1000B0004137000841370008413700084137000840
-:1000C0004137000841370008413700084137000830
-:1000D0004137000841370008413700084137000820
-:1000E0004137000841370008413700084137000810
-:1000F0004137000841370008413700084137000800
-:1001000041370008413700084137000841370008EF
-:1001100041370008413700084137000841370008DF
-:1001200041370008413700084137000841370008CF
-:1001300041370008000000000000000041370008BF
-:10014000413700084137000841370008ED06000834
-:10015000413700084137000841370008413700089F
-:10016000413700084137000841370008413700088F
-:10017000413700084137000800000000000000007F
-:10018000413700084137000808B1022070470020BD
+:1000000000C00120E9360008353700083537000800
+:100010003537000835370008353700080000000084
+:10002000000000000000000000000000353700085C
+:100030003537000800000000353700080D070008BC
+:1000400035370008353700083537000835370008E0
+:1000500035370008353700083537000835370008D0
+:1000600035370008353700083537000835370008C0
+:1000700035370008353700083537000835370008B0
+:1000800035370008353700083537000835370008A0
+:100090003537000835370008353700083537000890
+:1000A0003537000835370008353700083537000880
+:1000B0003537000835370008353700083537000870
+:1000C0003537000835370008353700083537000860
+:1000D0003537000835370008353700083537000850
+:1000E0003537000835370008353700083537000840
+:1000F0003537000835370008353700083537000830
+:10010000353700083537000835370008353700081F
+:10011000353700083537000835370008353700080F
+:1001200035370008353700083537000835370008FF
+:1001300035370008000000000000000035370008D7
+:10014000353700083537000835370008ED06000858
+:1001500035370008353700083537000835370008CF
+:1001600035370008353700083537000835370008BF
+:100170003537000835370008000000000000000097
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 :00000001FF
diff --git a/Upstream/Debug/Upstream.map b/Upstream/Debug/Upstream.map
index ac365e5..f778da9 100644
--- a/Upstream/Debug/Upstream.map
+++ b/Upstream/Debug/Upstream.map
@@ -19,335 +19,243 @@ Allocating common symbols
 Common symbol       size              file
 
 hUsbDeviceFS        0x224             Src/usb_device.o
-hUsbDevice_0        0x4               Src/usbd_storage_if.o
+ReadStreamPacket    0x4               Src/downstream_interface_msc.o
+SCSI_ProcessCmd_hmsc
+                    0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+BlockStart          0x8               Src/downstream_interface_msc.o
+SCSI_ProcessCmd_params
+                    0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
 errno               0x4               /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
-hpcd_USB_OTG_FS     0x3b0             Src/usbd_conf.o
-hcrc                0x8               Src/main.o
-hspi1               0x58              Src/main.o
-USBD_StrDesc        0x200             Src/usbd_desc.o
+hpcd_USB_OTG_FS     0x3b0             Src/usbd_config.o
+spiRxDmaHandle      0x50              Src/hal_msp.o
+SentCommand         0x1               Src/downstream_spi.o
+GetCapacityCallback
+                    0x4               Src/downstream_interface_msc.o
+DownstreamInterfaceState
+                    0x1               Src/downstream_spi.o
+BlockCount          0x4               Src/downstream_interface_msc.o
+TestReadyCallback   0x4               Src/downstream_interface_msc.o
+SCSI_ProcessCmd_lun
+                    0x1               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+DownstreamPacket1   0x20c             Src/downstream_spi.o
+SCSI_ProcessCmd_callback
+                    0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ReceivePacketCallback
+                    0x4               Src/downstream_spi.o
+SCSI_ProcessCmd_pdev
+                    0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+DownstreamPacket0   0x20c             Src/downstream_spi.o
+CurrentWorkingPacket
+                    0x4               Src/downstream_spi.o
+MSC_BOT_pdev        0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+GetStreamDataCallback
+                    0x4               Src/downstream_interface_msc.o
+SentCommandClass    0x1               Src/downstream_spi.o
+MSC_BOT_hmsc        0x4               Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+NextTxPacket        0x4               Src/downstream_spi.o
+ByteCount           0x4               Src/downstream_interface_msc.o
+hspi1               0x58              Src/downstream_spi.o
+spiTxDmaHandle      0x50              Src/hal_msp.o
+PendingFreePacketCallback
+                    0x4               Src/downstream_spi.o
+USBD_StrDesc        0x200             Src/usbd_descriptors.o
 
 Discarded input sections
 
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_storage_if.o
- .text          0x00000000        0x0 Src/usbd_storage_if.o
- .data          0x00000000        0x0 Src/usbd_storage_if.o
- .bss           0x00000000        0x0 Src/usbd_storage_if.o
- COMMON         0x00000000        0x4 Src/usbd_storage_if.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
- .group         0x00000000        0x8 Src/usbd_desc.o
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- .debug_macro   0x00000000      0x1b6 Src/usbd_conf.o
+                0x00000000        0x8 Src/usbd_config.o
+ .debug_macro   0x00000000      0x868 Src/usbd_config.o
+ .debug_macro   0x00000000       0x2e Src/usbd_config.o
+ .debug_macro   0x00000000       0x28 Src/usbd_config.o
+ .debug_macro   0x00000000       0x3b Src/usbd_config.o
+ .debug_macro   0x00000000       0x22 Src/usbd_config.o
+ .debug_macro   0x00000000       0x1c Src/usbd_config.o
+ .debug_macro   0x00000000      0x1f7 Src/usbd_config.o
+ .debug_macro   0x00000000       0x2d Src/usbd_config.o
+ .debug_macro   0x00000000       0x26 Src/usbd_config.o
+ .debug_macro   0x00000000      0xd39 Src/usbd_config.o
+ .debug_macro   0x00000000     0x8861 Src/usbd_config.o
+ .debug_macro   0x00000000       0x43 Src/usbd_config.o
+ .debug_macro   0x00000000      0x1a7 Src/usbd_config.o
+ .debug_macro   0x00000000     0x2694 Src/usbd_config.o
+ .debug_macro   0x00000000      0xa22 Src/usbd_config.o
+ .debug_macro   0x00000000      0x39f Src/usbd_config.o
+ .debug_macro   0x00000000      0x15b Src/usbd_config.o
+ .debug_macro   0x00000000      0x11e Src/usbd_config.o
+ .debug_macro   0x00000000      0x130 Src/usbd_config.o
+ .debug_macro   0x00000000       0x27 Src/usbd_config.o
+ .debug_macro   0x00000000      0x272 Src/usbd_config.o
+ .debug_macro   0x00000000       0x5f Src/usbd_config.o
+ .debug_macro   0x00000000       0x5d Src/usbd_config.o
+ .debug_macro   0x00000000      0x133 Src/usbd_config.o
+ .debug_macro   0x00000000      0x217 Src/usbd_config.o
+ .debug_macro   0x00000000       0x2e Src/usbd_config.o
+ .debug_macro   0x00000000      0x13a Src/usbd_config.o
+ .debug_macro   0x00000000       0x5e Src/usbd_config.o
+ .debug_macro   0x00000000       0x97 Src/usbd_config.o
+ .debug_macro   0x00000000      0x209 Src/usbd_config.o
+ .debug_macro   0x00000000      0x1df Src/usbd_config.o
+ .debug_macro   0x00000000      0x109 Src/usbd_config.o
+ .debug_macro   0x00000000      0x125 Src/usbd_config.o
+ .debug_macro   0x00000000       0x58 Src/usbd_config.o
+ .debug_macro   0x00000000       0x35 Src/usbd_config.o
+ .debug_macro   0x00000000       0x9c Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000       0x97 Src/usbd_config.o
+ .debug_macro   0x00000000      0x27a Src/usbd_config.o
+ .debug_macro   0x00000000       0xf6 Src/usbd_config.o
+ .debug_macro   0x00000000       0x10 Src/usbd_config.o
+ .debug_macro   0x00000000       0x52 Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000       0x43 Src/usbd_config.o
+ .debug_macro   0x00000000      0x180 Src/usbd_config.o
+ .debug_macro   0x00000000       0x10 Src/usbd_config.o
+ .debug_macro   0x00000000       0x22 Src/usbd_config.o
+ .debug_macro   0x00000000       0xbd Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000      0x16d Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000       0x35 Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000       0x29 Src/usbd_config.o
+ .debug_macro   0x00000000       0x16 Src/usbd_config.o
+ .debug_macro   0x00000000       0x6a Src/usbd_config.o
+ .debug_macro   0x00000000      0x1b6 Src/usbd_config.o
  .group         0x00000000        0x8 Src/usb_device.o
  .group         0x00000000        0x8 Src/usb_device.o
  .group         0x00000000        0x8 Src/usb_device.o
@@ -415,11 +323,33 @@ Discarded input sections
  .data          0x00000000        0x0 Src/usb_device.o
  .bss           0x00000000        0x0 Src/usb_device.o
  .debug_macro   0x00000000      0x868 Src/usb_device.o
+ .debug_macro   0x00000000       0x58 Src/usb_device.o
+ .debug_macro   0x00000000       0x22 Src/usb_device.o
+ .debug_macro   0x00000000       0x35 Src/usb_device.o
+ .debug_macro   0x00000000       0x9c Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
+ .debug_macro   0x00000000       0x4a Src/usb_device.o
+ .debug_macro   0x00000000       0x97 Src/usb_device.o
+ .debug_macro   0x00000000      0x27a Src/usb_device.o
+ .debug_macro   0x00000000       0xf6 Src/usb_device.o
+ .debug_macro   0x00000000       0x10 Src/usb_device.o
+ .debug_macro   0x00000000       0x52 Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
+ .debug_macro   0x00000000       0x43 Src/usb_device.o
+ .debug_macro   0x00000000      0x180 Src/usb_device.o
+ .debug_macro   0x00000000       0x10 Src/usb_device.o
+ .debug_macro   0x00000000       0x22 Src/usb_device.o
+ .debug_macro   0x00000000       0xbd Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
+ .debug_macro   0x00000000      0x16d Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
+ .debug_macro   0x00000000       0x35 Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
+ .debug_macro   0x00000000       0x29 Src/usb_device.o
+ .debug_macro   0x00000000       0x16 Src/usb_device.o
  .debug_macro   0x00000000       0x2e Src/usb_device.o
  .debug_macro   0x00000000       0x28 Src/usb_device.o
  .debug_macro   0x00000000       0x3b Src/usb_device.o
- .debug_macro   0x00000000       0x22 Src/usb_device.o
- .debug_macro   0x00000000       0x44 Src/usb_device.o
  .debug_macro   0x00000000       0x1c Src/usb_device.o
  .debug_macro   0x00000000      0x1f7 Src/usb_device.o
  .debug_macro   0x00000000       0x2d Src/usb_device.o
@@ -427,9 +357,9 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Src/usb_device.o
  .debug_macro   0x00000000     0x8861 Src/usb_device.o
  .debug_macro   0x00000000       0x43 Src/usb_device.o
- .debug_macro   0x00000000      0x1ad Src/usb_device.o
+ .debug_macro   0x00000000      0x1a7 Src/usb_device.o
  .debug_macro   0x00000000     0x2694 Src/usb_device.o
- .debug_macro   0x00000000       0x64 Src/usb_device.o
+ .debug_macro   0x00000000       0x57 Src/usb_device.o
  .debug_macro   0x00000000      0xa22 Src/usb_device.o
  .debug_macro   0x00000000      0x39f Src/usb_device.o
  .debug_macro   0x00000000      0x15b Src/usb_device.o
@@ -439,7 +369,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Src/usb_device.o
  .debug_macro   0x00000000       0x5f Src/usb_device.o
  .debug_macro   0x00000000       0x5d Src/usb_device.o
- .debug_macro   0x00000000       0x23 Src/usb_device.o
  .debug_macro   0x00000000      0x133 Src/usb_device.o
  .debug_macro   0x00000000      0x217 Src/usb_device.o
  .debug_macro   0x00000000       0x2e Src/usb_device.o
@@ -450,31 +379,11 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Src/usb_device.o
  .debug_macro   0x00000000      0x109 Src/usb_device.o
  .debug_macro   0x00000000      0x125 Src/usb_device.o
- .debug_macro   0x00000000       0x58 Src/usb_device.o
- .debug_macro   0x00000000       0x35 Src/usb_device.o
- .debug_macro   0x00000000       0x9c Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
- .debug_macro   0x00000000       0x97 Src/usb_device.o
- .debug_macro   0x00000000      0x27a Src/usb_device.o
- .debug_macro   0x00000000       0xf6 Src/usb_device.o
- .debug_macro   0x00000000       0x10 Src/usb_device.o
- .debug_macro   0x00000000       0x52 Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
- .debug_macro   0x00000000       0x43 Src/usb_device.o
- .debug_macro   0x00000000      0x180 Src/usb_device.o
- .debug_macro   0x00000000       0x10 Src/usb_device.o
- .debug_macro   0x00000000       0x22 Src/usb_device.o
- .debug_macro   0x00000000       0xbd Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
- .debug_macro   0x00000000      0x16d Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
- .debug_macro   0x00000000       0x35 Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
- .debug_macro   0x00000000       0x29 Src/usb_device.o
- .debug_macro   0x00000000       0x16 Src/usb_device.o
  .debug_macro   0x00000000       0x6a Src/usb_device.o
  .debug_macro   0x00000000      0x1b6 Src/usb_device.o
+ .debug_macro   0x00000000       0x82 Src/usb_device.o
  .debug_macro   0x00000000      0x160 Src/usb_device.o
+ .debug_macro   0x00000000       0x28 Src/usb_device.o
  .debug_macro   0x00000000       0x34 Src/usb_device.o
  .group         0x00000000        0x8 Src/main.o
  .group         0x00000000        0x8 Src/main.o
@@ -541,12 +450,33 @@ Discarded input sections
  .data          0x00000000        0x0 Src/main.o
  .bss           0x00000000        0x0 Src/main.o
  .debug_macro   0x00000000      0x868 Src/main.o
- .debug_macro   0x00000000      0x1ad Src/main.o
+ .debug_macro   0x00000000       0x58 Src/main.o
+ .debug_macro   0x00000000       0x22 Src/main.o
+ .debug_macro   0x00000000       0x35 Src/main.o
+ .debug_macro   0x00000000       0x9c Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
+ .debug_macro   0x00000000       0x4a Src/main.o
+ .debug_macro   0x00000000       0x97 Src/main.o
+ .debug_macro   0x00000000      0x27a Src/main.o
+ .debug_macro   0x00000000       0xf6 Src/main.o
+ .debug_macro   0x00000000       0x10 Src/main.o
+ .debug_macro   0x00000000       0x52 Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
+ .debug_macro   0x00000000       0x43 Src/main.o
+ .debug_macro   0x00000000      0x180 Src/main.o
+ .debug_macro   0x00000000       0x10 Src/main.o
+ .debug_macro   0x00000000       0x22 Src/main.o
+ .debug_macro   0x00000000       0xbd Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
+ .debug_macro   0x00000000      0x16d Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
+ .debug_macro   0x00000000       0x35 Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
+ .debug_macro   0x00000000       0x29 Src/main.o
+ .debug_macro   0x00000000       0x16 Src/main.o
  .debug_macro   0x00000000       0x2e Src/main.o
  .debug_macro   0x00000000       0x28 Src/main.o
  .debug_macro   0x00000000       0x3b Src/main.o
- .debug_macro   0x00000000       0x22 Src/main.o
- .debug_macro   0x00000000       0x44 Src/main.o
  .debug_macro   0x00000000       0x1c Src/main.o
  .debug_macro   0x00000000      0x1f7 Src/main.o
  .debug_macro   0x00000000       0x2d Src/main.o
@@ -554,8 +484,9 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Src/main.o
  .debug_macro   0x00000000     0x8861 Src/main.o
  .debug_macro   0x00000000       0x43 Src/main.o
+ .debug_macro   0x00000000      0x1a7 Src/main.o
  .debug_macro   0x00000000     0x2694 Src/main.o
- .debug_macro   0x00000000       0x64 Src/main.o
+ .debug_macro   0x00000000       0x57 Src/main.o
  .debug_macro   0x00000000      0xa22 Src/main.o
  .debug_macro   0x00000000      0x39f Src/main.o
  .debug_macro   0x00000000      0x15b Src/main.o
@@ -565,7 +496,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Src/main.o
  .debug_macro   0x00000000       0x5f Src/main.o
  .debug_macro   0x00000000       0x5d Src/main.o
- .debug_macro   0x00000000       0x23 Src/main.o
  .debug_macro   0x00000000      0x133 Src/main.o
  .debug_macro   0x00000000      0x217 Src/main.o
  .debug_macro   0x00000000       0x2e Src/main.o
@@ -576,28 +506,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Src/main.o
  .debug_macro   0x00000000      0x109 Src/main.o
  .debug_macro   0x00000000      0x125 Src/main.o
- .debug_macro   0x00000000       0x58 Src/main.o
- .debug_macro   0x00000000       0x35 Src/main.o
- .debug_macro   0x00000000       0x9c Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
- .debug_macro   0x00000000       0x97 Src/main.o
- .debug_macro   0x00000000      0x27a Src/main.o
- .debug_macro   0x00000000       0xf6 Src/main.o
- .debug_macro   0x00000000       0x10 Src/main.o
- .debug_macro   0x00000000       0x52 Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
- .debug_macro   0x00000000       0x43 Src/main.o
- .debug_macro   0x00000000      0x180 Src/main.o
- .debug_macro   0x00000000       0x10 Src/main.o
- .debug_macro   0x00000000       0x22 Src/main.o
- .debug_macro   0x00000000       0xbd Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
- .debug_macro   0x00000000      0x16d Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
- .debug_macro   0x00000000       0x35 Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
- .debug_macro   0x00000000       0x29 Src/main.o
- .debug_macro   0x00000000       0x16 Src/main.o
  .debug_macro   0x00000000       0x6a Src/main.o
  .debug_macro   0x00000000      0x1b6 Src/main.o
  .group         0x00000000        0x8 Src/interrupts.o
@@ -637,13 +545,12 @@ Discarded input sections
  .group         0x00000000        0x8 Src/interrupts.o
  .group         0x00000000        0x8 Src/interrupts.o
  .group         0x00000000        0x8 Src/interrupts.o
- .group         0x00000000        0x8 Src/interrupts.o
  .text          0x00000000        0x0 Src/interrupts.o
  .data          0x00000000        0x0 Src/interrupts.o
  .bss           0x00000000        0x0 Src/interrupts.o
  .debug_macro   0x00000000      0x868 Src/interrupts.o
- .debug_macro   0x00000000       0x16 Src/interrupts.o
- .debug_macro   0x00000000      0x1ad Src/interrupts.o
+ .debug_macro   0x00000000       0x1c Src/interrupts.o
+ .debug_macro   0x00000000      0x1a7 Src/interrupts.o
  .debug_macro   0x00000000       0x2e Src/interrupts.o
  .debug_macro   0x00000000       0x28 Src/interrupts.o
  .debug_macro   0x00000000       0x3b Src/interrupts.o
@@ -667,7 +574,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Src/interrupts.o
  .debug_macro   0x00000000       0x5f Src/interrupts.o
  .debug_macro   0x00000000       0x5d Src/interrupts.o
- .debug_macro   0x00000000       0x23 Src/interrupts.o
  .debug_macro   0x00000000      0x133 Src/interrupts.o
  .debug_macro   0x00000000      0x217 Src/interrupts.o
  .debug_macro   0x00000000       0x2e Src/interrupts.o
@@ -678,7 +584,7 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Src/interrupts.o
  .debug_macro   0x00000000      0x109 Src/interrupts.o
  .debug_macro   0x00000000      0x125 Src/interrupts.o
- .debug_macro   0x00000000       0x4c Src/interrupts.o
+ .debug_macro   0x00000000       0x82 Src/interrupts.o
  .group         0x00000000        0x8 Src/hal_msp.o
  .group         0x00000000        0x8 Src/hal_msp.o
  .group         0x00000000        0x8 Src/hal_msp.o
@@ -719,12 +625,10 @@ Discarded input sections
  .text          0x00000000        0x0 Src/hal_msp.o
  .data          0x00000000        0x0 Src/hal_msp.o
  .bss           0x00000000        0x0 Src/hal_msp.o
- .text.HAL_CRC_MspDeInit
-                0x00000000       0x1c Src/hal_msp.o
  .text.HAL_SPI_MspDeInit
-                0x00000000       0x2c Src/hal_msp.o
+                0x00000000       0x50 Src/hal_msp.o
  .debug_macro   0x00000000      0x868 Src/hal_msp.o
- .debug_macro   0x00000000      0x1ad Src/hal_msp.o
+ .debug_macro   0x00000000      0x1a7 Src/hal_msp.o
  .debug_macro   0x00000000       0x2e Src/hal_msp.o
  .debug_macro   0x00000000       0x28 Src/hal_msp.o
  .debug_macro   0x00000000       0x3b Src/hal_msp.o
@@ -748,7 +652,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Src/hal_msp.o
  .debug_macro   0x00000000       0x5f Src/hal_msp.o
  .debug_macro   0x00000000       0x5d Src/hal_msp.o
- .debug_macro   0x00000000       0x23 Src/hal_msp.o
  .debug_macro   0x00000000      0x133 Src/hal_msp.o
  .debug_macro   0x00000000      0x217 Src/hal_msp.o
  .debug_macro   0x00000000       0x2e Src/hal_msp.o
@@ -759,8 +662,259 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Src/hal_msp.o
  .debug_macro   0x00000000      0x109 Src/hal_msp.o
  .debug_macro   0x00000000      0x125 Src/hal_msp.o
- .debug_macro   0x00000000       0x16 Src/hal_msp.o
- .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+ .debug_macro   0x00000000       0x1c Src/hal_msp.o
+ .debug_macro   0x00000000       0x82 Src/hal_msp.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
+ .group         0x00000000        0x8 Src/downstream_spi.o
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+ .group         0x00000000        0x8 Src/downstream_interface_msc.o
+ .group         0x00000000        0x8 Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0x3b Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0x2d Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x26 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000      0xd39 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000     0x8861 Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000     0x2694 Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000      0xa22 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000      0x39f Src/downstream_interface_msc.o
+ .debug_macro   0x00000000      0x15b Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0x5f Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x5d Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000      0x1df Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0x35 Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0x16 Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000       0xbd Src/downstream_interface_msc.o
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+ .debug_macro   0x00000000      0x16d Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x16 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x35 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x16 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x29 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x16 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x6a Src/downstream_interface_msc.o
+ .debug_macro   0x00000000      0x1b6 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x22 Src/downstream_interface_msc.o
+ .debug_macro   0x00000000       0x1c Src/downstream_interface_msc.o
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  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
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  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
  .debug_macro   0x00000000       0x57 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
  .debug_macro   0x00000000      0xa22 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
@@ -874,7 +1028,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
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  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
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@@ -946,7 +1099,6 @@ Discarded input sections
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  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
- .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
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  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
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  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
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  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
- .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .text          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
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  .debug_macro   0x00000000      0xd39 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
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  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
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  .debug_macro   0x00000000       0x5f Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .debug_macro   0x00000000      0x133 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .debug_macro   0x00000000      0x217 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .debug_macro   0x00000000       0x2e Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
@@ -1203,6 +1352,7 @@ Discarded input sections
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .text          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .data          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .bss           0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
@@ -1241,7 +1391,7 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
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  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x57 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000      0xa22 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
@@ -1253,7 +1403,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x5f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000      0x133 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000      0x217 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x2e Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
@@ -1266,10 +1415,10 @@ Discarded input sections
  .debug_macro   0x00000000      0x125 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000      0x1b6 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x6a Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .debug_macro   0x00000000       0x7c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000      0x160 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .debug_macro   0x00000000       0x28 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .debug_macro   0x00000000       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+ .debug_macro   0x00000000       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
@@ -1368,7 +1517,7 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000     0x8861 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000       0x57 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000      0xa22 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
@@ -1380,7 +1529,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000       0x5f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000      0x133 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000      0x217 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .debug_macro   0x00000000       0x2e Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
@@ -1494,7 +1642,7 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000     0x8861 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x57 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000      0xa22 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
@@ -1506,7 +1654,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x5f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000      0x133 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000      0x217 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x2e Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
@@ -1521,6 +1668,7 @@ Discarded input sections
  .debug_macro   0x00000000       0x6a Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x7c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000      0x160 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+ .debug_macro   0x00000000       0x28 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .debug_macro   0x00000000       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
@@ -1585,6 +1733,7 @@ Discarded input sections
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+ .group         0x00000000        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .text          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .data          0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .bss           0x00000000        0x0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
@@ -1623,7 +1772,7 @@ Discarded input sections
  .debug_macro   0x00000000      0xd39 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000     0x8861 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x43 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
- .debug_macro   0x00000000      0x1ad Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+ .debug_macro   0x00000000      0x1a7 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000     0x2694 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x57 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000      0xa22 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
@@ -1635,7 +1784,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x5f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x5d Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
- .debug_macro   0x00000000       0x23 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000      0x133 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000      0x217 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x2e Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
@@ -1650,8 +1798,9 @@ Discarded input sections
  .debug_macro   0x00000000       0x6a Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x7c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000      0x160 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+ .debug_macro   0x00000000       0x28 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .debug_macro   0x00000000       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+ .debug_macro   0x00000000       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
@@ -1722,10 +1871,10 @@ Discarded input sections
                 0x00000000      0x288 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .text.USB_StopHost
                 0x00000000      0x100 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
- .bss.debug.6327
+ .bss.debug.6299
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
@@ -1749,7 +1898,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
@@ -1795,12 +1943,9 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_WaitOnFlagUntilTimeout
-                0x00000000       0xe4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_MspInit
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_MspDeInit
@@ -1819,12 +1964,6 @@ Discarded input sections
                 0x00000000       0xcc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_Receive_IT
                 0x00000000       0xc8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_Transmit_DMA
-                0x00000000       0xd0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_TransmitReceive_DMA
-                0x00000000      0x13c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_Receive_DMA
-                0x00000000       0xf0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_DMAPause
                 0x00000000       0x30 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_DMAResume
@@ -1835,20 +1974,6 @@ Discarded input sections
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_RxCpltCallback
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_TxRxCpltCallback
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_TxHalfCpltCallback
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMAHalfTransmitCplt
-                0x00000000        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_RxHalfCpltCallback
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMAHalfReceiveCplt
-                0x00000000        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.HAL_SPI_TxRxHalfCpltCallback
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMAHalfTransmitReceiveCplt
-                0x00000000        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_ErrorCallback
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.SPI_TxCloseIRQHandler
@@ -1861,14 +1986,6 @@ Discarded input sections
                 0x00000000       0x4c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.SPI_2LinesRxISR
                 0x00000000       0x34 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMAError
-                0x00000000       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMATransmitCplt
-                0x00000000       0x78 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMAReceiveCplt
-                0x00000000       0xc8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .text.SPI_DMATransmitReceiveCplt
-                0x00000000       0xcc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_IRQHandler
                 0x00000000       0xc8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_GetState
@@ -1876,7 +1993,7 @@ Discarded input sections
  .text.HAL_SPI_GetError
                 0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
@@ -1900,7 +2017,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
@@ -1946,7 +2062,6 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
@@ -1960,9 +2075,9 @@ Discarded input sections
  .debug_aranges
                 0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_ranges  0x00000000       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .debug_macro   0x00000000      0x1b5 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
+ .debug_macro   0x00000000      0x1ab Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
@@ -1986,7 +2101,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
@@ -1997,8 +2111,8 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000      0x109 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_macro   0x00000000      0x125 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .debug_line    0x00000000      0x606 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
- .debug_str     0x00000000    0x60427 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
+ .debug_line    0x00000000      0x600 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
+ .debug_str     0x00000000    0x602a3 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .debug_frame   0x00000000       0x3c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.o
  .ARM.attributes
@@ -2038,7 +2152,6 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
@@ -2063,7 +2176,7 @@ Discarded input sections
  .text.HAL_RCC_NMI_IRQHandler
                 0x00000000       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
@@ -2087,7 +2200,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
@@ -2133,12 +2245,11 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
@@ -2162,7 +2273,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
@@ -2208,7 +2318,6 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
@@ -2253,7 +2362,7 @@ Discarded input sections
  .text.HAL_PCD_GetState
                 0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
@@ -2277,7 +2386,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
@@ -2323,7 +2431,6 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
@@ -2342,7 +2449,7 @@ Discarded input sections
  .text.HAL_GPIO_EXTI_IRQHandler
                 0x00000000       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
@@ -2366,7 +2473,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
@@ -2377,94 +2483,91 @@ Discarded input sections
  .debug_macro   0x00000000      0x1df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000      0x109 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .debug_macro   0x00000000      0x125 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_MspInit
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_MspDeInit
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_DeInit
-                0x00000000       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_Accumulate
-                0x00000000       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_Calculate
-                0x00000000       0x44 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .text.HAL_CRC_GetState
-                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x22 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x44 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x1f7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x2d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x26 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0xd39 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000     0x8861 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x43 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000     0x2694 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0xa22 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x39f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x15b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x11e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x130 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x27 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x13a Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x5e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000       0x97 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x209 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x1df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x109 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_macro   0x00000000      0x125 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_DeInit
+                0x00000000      0xe3c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_Start
+                0x00000000       0x3c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_Abort
+                0x00000000       0x50 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_PollForTransfer
+                0x00000000     0x243c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_GetState
+                0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_GetError
+                0x00000000        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x22 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x44 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x1f7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x2d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x26 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0xd39 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000     0x8861 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x43 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000     0x2694 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0xa22 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x39f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x15b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x11e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x130 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x27 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x13a Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x5e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000       0x97 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x209 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x1df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x109 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_macro   0x00000000      0x125 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
@@ -2526,7 +2629,7 @@ Discarded input sections
  .text.HAL_SYSTICK_IRQHandler
                 0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
@@ -2550,7 +2653,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
@@ -2596,7 +2698,6 @@ Discarded input sections
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
- .group         0x00000000        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .text          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .data          0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .bss           0x00000000        0x0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
@@ -2633,7 +2734,7 @@ Discarded input sections
  .text.HAL_DisableCompensationCell
                 0x00000000       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000      0x868 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
- .debug_macro   0x00000000      0x1ad Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+ .debug_macro   0x00000000      0x1a7 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x3b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
@@ -2657,7 +2758,6 @@ Discarded input sections
  .debug_macro   0x00000000      0x272 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x5f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x5d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
- .debug_macro   0x00000000       0x23 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000      0x133 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000      0x217 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .debug_macro   0x00000000       0x2e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
@@ -2743,13 +2843,14 @@ CCMRAM           0x10000000         0x00010000         rw
 
 Linker script and memory map
 
-LOAD Src/usbd_storage_if.o
-LOAD Src/usbd_desc.o
-LOAD Src/usbd_conf.o
+LOAD Src/usbd_descriptors.o
+LOAD Src/usbd_config.o
 LOAD Src/usb_device.o
 LOAD Src/main.o
 LOAD Src/interrupts.o
 LOAD Src/hal_msp.o
+LOAD Src/downstream_spi.o
+LOAD Src/downstream_interface_msc.o
 LOAD Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
 LOAD Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
 LOAD Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
@@ -2764,7 +2865,7 @@ LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
 LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
 LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
 LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
-LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
+LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
 LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
 LOAD Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
 LOAD Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
@@ -2785,7 +2886,7 @@ LOAD /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/
 LOAD /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a
 END GROUP
 
-.text           0x08000000     0x3976
+.text           0x08000000     0x6df6
  *(.vectors)
  .vectors       0x08000000      0x188 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
                 0x08000000                __Vectors
@@ -2793,744 +2894,893 @@ END GROUP
                 0x00000188                __Vectors_Size = (__Vectors_End - __Vectors)
                 0x08000188                __end__ = .
  *(.text*)
- .text.STORAGE_Init_FS
-                0x08000188        0xc Src/usbd_storage_if.o
- .text.STORAGE_GetCapacity_FS
-                0x08000194       0x14 Src/usbd_storage_if.o
- .text.STORAGE_IsReady_FS
-                0x080001a8        0xc Src/usbd_storage_if.o
- .text.STORAGE_IsWriteProtected_FS
-                0x080001b4        0xc Src/usbd_storage_if.o
- .text.STORAGE_Read_FS
-                0x080001c0       0x38 Src/usbd_storage_if.o
- .text.STORAGE_Write_FS
-                0x080001f8        0xc Src/usbd_storage_if.o
- .text.STORAGE_GetMaxLun_FS
-                0x08000204        0x4 Src/usbd_storage_if.o
  .text.USBD_FS_DeviceDescriptor
-                0x08000208        0xc Src/usbd_desc.o
-                0x08000208                USBD_FS_DeviceDescriptor
+                0x08000188        0xc Src/usbd_descriptors.o
+                0x08000188                USBD_FS_DeviceDescriptor
  .text.USBD_FS_LangIDStrDescriptor
-                0x08000214        0xc Src/usbd_desc.o
-                0x08000214                USBD_FS_LangIDStrDescriptor
+                0x08000194        0xc Src/usbd_descriptors.o
+                0x08000194                USBD_FS_LangIDStrDescriptor
  .text.USBD_FS_ProductStrDescriptor
-                0x08000220       0x1c Src/usbd_desc.o
-                0x08000220                USBD_FS_ProductStrDescriptor
+                0x080001a0       0x1c Src/usbd_descriptors.o
+                0x080001a0                USBD_FS_ProductStrDescriptor
  .text.USBD_FS_ManufacturerStrDescriptor
-                0x0800023c       0x1c Src/usbd_desc.o
-                0x0800023c                USBD_FS_ManufacturerStrDescriptor
+                0x080001bc       0x1c Src/usbd_descriptors.o
+                0x080001bc                USBD_FS_ManufacturerStrDescriptor
  .text.USBD_FS_SerialStrDescriptor
-                0x08000258       0x24 Src/usbd_desc.o
-                0x08000258                USBD_FS_SerialStrDescriptor
+                0x080001d8       0x1c Src/usbd_descriptors.o
+                0x080001d8                USBD_FS_SerialStrDescriptor
  .text.USBD_FS_ConfigStrDescriptor
-                0x0800027c       0x24 Src/usbd_desc.o
-                0x0800027c                USBD_FS_ConfigStrDescriptor
+                0x080001f4       0x1c Src/usbd_descriptors.o
+                0x080001f4                USBD_FS_ConfigStrDescriptor
  .text.USBD_FS_InterfaceStrDescriptor
-                0x080002a0       0x24 Src/usbd_desc.o
-                0x080002a0                USBD_FS_InterfaceStrDescriptor
+                0x08000210       0x1c Src/usbd_descriptors.o
+                0x08000210                USBD_FS_InterfaceStrDescriptor
  .text.HAL_PCD_MspInit
-                0x080002c4       0x58 Src/usbd_conf.o
-                0x080002c4                HAL_PCD_MspInit
+                0x0800022c       0x58 Src/usbd_config.o
+                0x0800022c                HAL_PCD_MspInit
  .text.HAL_PCD_SetupStageCallback
-                0x0800031c       0x14 Src/usbd_conf.o
-                0x0800031c                HAL_PCD_SetupStageCallback
+                0x08000284       0x14 Src/usbd_config.o
+                0x08000284                HAL_PCD_SetupStageCallback
  .text.HAL_PCD_DataOutStageCallback
-                0x08000330       0x18 Src/usbd_conf.o
-                0x08000330                HAL_PCD_DataOutStageCallback
+                0x08000298       0x18 Src/usbd_config.o
+                0x08000298                HAL_PCD_DataOutStageCallback
  .text.HAL_PCD_DataInStageCallback
-                0x08000348       0x18 Src/usbd_conf.o
-                0x08000348                HAL_PCD_DataInStageCallback
+                0x080002b0       0x18 Src/usbd_config.o
+                0x080002b0                HAL_PCD_DataInStageCallback
  .text.HAL_PCD_SOFCallback
-                0x08000360        0xc Src/usbd_conf.o
-                0x08000360                HAL_PCD_SOFCallback
+                0x080002c8        0xc Src/usbd_config.o
+                0x080002c8                HAL_PCD_SOFCallback
  .text.HAL_PCD_ResetCallback
-                0x0800036c       0x20 Src/usbd_conf.o
-                0x0800036c                HAL_PCD_ResetCallback
+                0x080002d4       0x20 Src/usbd_config.o
+                0x080002d4                HAL_PCD_ResetCallback
  .text.HAL_PCD_SuspendCallback
-                0x0800038c       0x1c Src/usbd_conf.o
-                0x0800038c                HAL_PCD_SuspendCallback
+                0x080002f4       0x1c Src/usbd_config.o
+                0x080002f4                HAL_PCD_SuspendCallback
  .text.HAL_PCD_ResumeCallback
-                0x080003a8       0x1c Src/usbd_conf.o
-                0x080003a8                HAL_PCD_ResumeCallback
+                0x08000310       0x1c Src/usbd_config.o
+                0x08000310                HAL_PCD_ResumeCallback
  .text.HAL_PCD_ISOOUTIncompleteCallback
-                0x080003c4        0xc Src/usbd_conf.o
-                0x080003c4                HAL_PCD_ISOOUTIncompleteCallback
+                0x0800032c        0xc Src/usbd_config.o
+                0x0800032c                HAL_PCD_ISOOUTIncompleteCallback
  .text.HAL_PCD_ISOINIncompleteCallback
-                0x080003d0        0xc Src/usbd_conf.o
-                0x080003d0                HAL_PCD_ISOINIncompleteCallback
+                0x08000338        0xc Src/usbd_config.o
+                0x08000338                HAL_PCD_ISOINIncompleteCallback
  .text.HAL_PCD_ConnectCallback
-                0x080003dc        0xc Src/usbd_conf.o
-                0x080003dc                HAL_PCD_ConnectCallback
+                0x08000344        0xc Src/usbd_config.o
+                0x08000344                HAL_PCD_ConnectCallback
  .text.HAL_PCD_DisconnectCallback
-                0x080003e8        0xc Src/usbd_conf.o
-                0x080003e8                HAL_PCD_DisconnectCallback
+                0x08000350        0xc Src/usbd_config.o
+                0x08000350                HAL_PCD_DisconnectCallback
+ .text.HAL_PCD_BufferFreedCallBack
+                0x0800035c        0xc Src/usbd_config.o
+                0x0800035c                HAL_PCD_BufferFreedCallBack
  .text.USBD_LL_Init
-                0x080003f4       0x5c Src/usbd_conf.o
-                0x080003f4                USBD_LL_Init
+                0x08000368       0x5c Src/usbd_config.o
+                0x08000368                USBD_LL_Init
  .text.USBD_LL_Start
-                0x08000450       0x10 Src/usbd_conf.o
-                0x08000450                USBD_LL_Start
+                0x080003c4       0x10 Src/usbd_config.o
+                0x080003c4                USBD_LL_Start
  .text.USBD_LL_OpenEP
-                0x08000460       0x14 Src/usbd_conf.o
-                0x08000460                USBD_LL_OpenEP
+                0x080003d4       0x14 Src/usbd_config.o
+                0x080003d4                USBD_LL_OpenEP
  .text.USBD_LL_CloseEP
-                0x08000474       0x10 Src/usbd_conf.o
-                0x08000474                USBD_LL_CloseEP
+                0x080003e8       0x10 Src/usbd_config.o
+                0x080003e8                USBD_LL_CloseEP
  .text.USBD_LL_FlushEP
-                0x08000484       0x10 Src/usbd_conf.o
-                0x08000484                USBD_LL_FlushEP
+                0x080003f8       0x10 Src/usbd_config.o
+                0x080003f8                USBD_LL_FlushEP
  .text.USBD_LL_StallEP
-                0x08000494       0x10 Src/usbd_conf.o
-                0x08000494                USBD_LL_StallEP
+                0x08000408       0x10 Src/usbd_config.o
+                0x08000408                USBD_LL_StallEP
  .text.USBD_LL_ClearStallEP
-                0x080004a4       0x10 Src/usbd_conf.o
-                0x080004a4                USBD_LL_ClearStallEP
+                0x08000418       0x10 Src/usbd_config.o
+                0x08000418                USBD_LL_ClearStallEP
  .text.USBD_LL_IsStallEP
-                0x080004b4       0x30 Src/usbd_conf.o
-                0x080004b4                USBD_LL_IsStallEP
+                0x08000428       0x30 Src/usbd_config.o
+                0x08000428                USBD_LL_IsStallEP
  .text.USBD_LL_SetUSBAddress
-                0x080004e4       0x10 Src/usbd_conf.o
-                0x080004e4                USBD_LL_SetUSBAddress
+                0x08000458       0x10 Src/usbd_config.o
+                0x08000458                USBD_LL_SetUSBAddress
  .text.USBD_LL_Transmit
-                0x080004f4       0x10 Src/usbd_conf.o
-                0x080004f4                USBD_LL_Transmit
+                0x08000468       0x10 Src/usbd_config.o
+                0x08000468                USBD_LL_Transmit
  .text.USBD_LL_PrepareReceive
-                0x08000504       0x10 Src/usbd_conf.o
-                0x08000504                USBD_LL_PrepareReceive
+                0x08000478       0x10 Src/usbd_config.o
+                0x08000478                USBD_LL_PrepareReceive
  .text.USBD_LL_GetRxDataSize
-                0x08000514        0xc Src/usbd_conf.o
-                0x08000514                USBD_LL_GetRxDataSize
- .text.MX_USB_DEVICE_Init
-                0x08000520       0x38 Src/usb_device.o
-                0x08000520                MX_USB_DEVICE_Init
- .text.MX_GPIO_Init
-                0x08000558       0xa4 Src/main.o
- .text.MX_CRC_Init
-                0x080005fc       0x1c Src/main.o
- .text.MX_SPI1_Init
-                0x08000618       0x40 Src/main.o
+                0x08000488        0xc Src/usbd_config.o
+                0x08000488                USBD_LL_GetRxDataSize
+ .text.USB_Device_Init
+                0x08000494       0x2c Src/usb_device.o
+                0x08000494                USB_Device_Init
+ .text.GPIO_Init
+                0x080004c0       0xa4 Src/main.o
  .text.SystemClock_Config
-                0x08000658       0x78 Src/main.o
-                0x08000658                SystemClock_Config
- .text.main     0x080006d0       0x1c Src/main.o
-                0x080006d0                main
- .text.OTG_FS_IRQHandler
-                0x080006ec       0x20 Src/interrupts.o
-                0x080006ec                OTG_FS_IRQHandler
+                0x08000564       0x78 Src/main.o
+                0x08000564                SystemClock_Config
+ .text.main     0x080005dc       0x18 Src/main.o
+                0x080005dc                main
  .text.SysTick_Handler
-                0x0800070c        0x8 Src/interrupts.o
-                0x0800070c                SysTick_Handler
+                0x080005f4        0x8 Src/interrupts.o
+                0x080005f4                SysTick_Handler
+ .text.OTG_FS_IRQHandler
+                0x080005fc       0x20 Src/interrupts.o
+                0x080005fc                OTG_FS_IRQHandler
+ .text.DMA2_Stream2_IRQHandler
+                0x0800061c       0x10 Src/interrupts.o
+                0x0800061c                DMA2_Stream2_IRQHandler
+ .text.DMA2_Stream3_IRQHandler
+                0x0800062c       0x10 Src/interrupts.o
+                0x0800062c                DMA2_Stream3_IRQHandler
+ .text.EXTI3_IRQHandler
+                0x0800063c       0x14 Src/interrupts.o
+                0x0800063c                EXTI3_IRQHandler
  .text.HAL_MspInit
-                0x08000714       0x10 Src/hal_msp.o
-                0x08000714                HAL_MspInit
- .text.HAL_CRC_MspInit
-                0x08000724       0x1c Src/hal_msp.o
-                0x08000724                HAL_CRC_MspInit
+                0x08000650       0x10 Src/hal_msp.o
+                0x08000650                HAL_MspInit
  .text.HAL_SPI_MspInit
-                0x08000740       0x44 Src/hal_msp.o
-                0x08000740                HAL_SPI_MspInit
+                0x08000660      0x118 Src/hal_msp.o
+                0x08000660                HAL_SPI_MspInit
+ .text.SPI1_Init
+                0x08000778       0x44 Src/downstream_spi.o
+ .text.Downstream_BeginPacketReception
+                0x080007bc       0x44 Src/downstream_spi.o
+ .text.Downstream_InitInterface
+                0x08000800       0x50 Src/downstream_spi.o
+                0x08000800                Downstream_InitInterface
+ .text.Downstream_GetFreePacket
+                0x08000850       0x54 Src/downstream_spi.o
+                0x08000850                Downstream_GetFreePacket
+ .text.Downstream_CheckBeginPacketReception
+                0x080008a4       0x44 Src/downstream_spi.o
+ .text.Downstream_GetFreePacketImmediately
+                0x080008e8       0x38 Src/downstream_spi.o
+                0x080008e8                Downstream_GetFreePacketImmediately
+ .text.Downstream_ReleasePacket
+                0x08000920       0x1c Src/downstream_spi.o
+                0x08000920                Downstream_ReleasePacket
+ .text.Downstream_GetPacket
+                0x0800093c       0x18 Src/downstream_spi.o
+                0x0800093c                Downstream_GetPacket
+ .text.Downstream_TxOkInterrupt
+                0x08000954       0x9c Src/downstream_spi.o
+                0x08000954                Downstream_TxOkInterrupt
+ .text.Downstream_SendPacket
+                0x080009f0       0xa4 Src/downstream_spi.o
+                0x080009f0                Downstream_SendPacket
+ .text.HAL_SPI_TxCpltCallback
+                0x08000a94       0x9c Src/downstream_spi.o
+                0x08000a94                HAL_SPI_TxCpltCallback
+ .text.HAL_SPI_RxCpltCallback
+                0x08000b30       0x94 Src/downstream_spi.o
+                0x08000b30                HAL_SPI_RxCpltCallback
+ .text.HAL_SPI_ErrorCallback
+                0x08000bc4        0x4 Src/downstream_spi.o
+                0x08000bc4                HAL_SPI_ErrorCallback
+ .text.DownstreamInterface_GetCapacityReplyCallback
+                0x08000bc8       0x3c Src/downstream_interface_msc.o
+ .text.DownstreamInterface_GetStreamDataPacketCallback
+                0x08000c04       0x48 Src/downstream_interface_msc.o
+ .text.DownstreamInterface_TestReadyReplyCallback
+                0x08000c4c       0x34 Src/downstream_interface_msc.o
+ .text.DownstreamInterface_BeginWriteReplyCallback
+                0x08000c80       0x40 Src/downstream_interface_msc.o
+ .text.DownstreamInterface_TestReady
+                0x08000cc0       0x30 Src/downstream_interface_msc.o
+                0x08000cc0                DownstreamInterface_TestReady
+ .text.DownstreamInterface_GetCapacity
+                0x08000cf0       0x2c Src/downstream_interface_msc.o
+                0x08000cf0                DownstreamInterface_GetCapacity
+ .text.DownstreamInterface_BeginRead
+                0x08000d1c       0x68 Src/downstream_interface_msc.o
+                0x08000d1c                DownstreamInterface_BeginRead
+ .text.DownstreamInterface_GetStreamDataPacket
+                0x08000d84       0x30 Src/downstream_interface_msc.o
+                0x08000d84                DownstreamInterface_GetStreamDataPacket
+ .text.DownstreamInterface_BeginWrite
+                0x08000db4       0x54 Src/downstream_interface_msc.o
+                0x08000db4                DownstreamInterface_BeginWrite
+ .text.DownstreamInterface_PutStreamDataPacket
+                0x08000e08       0x14 Src/downstream_interface_msc.o
+                0x08000e08                DownstreamInterface_PutStreamDataPacket
  .text.USBD_CtlSendData
-                0x08000784       0x1c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                0x08000784                USBD_CtlSendData
+                0x08000e1c       0x1c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x08000e1c                USBD_CtlSendData
  .text.USBD_CtlContinueSendData
-                0x080007a0       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                0x080007a0                USBD_CtlContinueSendData
+                0x08000e38       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x08000e38                USBD_CtlContinueSendData
  .text.USBD_CtlContinueRx
-                0x080007b4       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                0x080007b4                USBD_CtlContinueRx
+                0x08000e4c       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x08000e4c                USBD_CtlContinueRx
  .text.USBD_CtlSendStatus
-                0x080007c8       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                0x080007c8                USBD_CtlSendStatus
+                0x08000e60       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x08000e60                USBD_CtlSendStatus
  .text.USBD_CtlReceiveStatus
-                0x080007e0       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                0x080007e0                USBD_CtlReceiveStatus
+                0x08000e78       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x08000e78                USBD_CtlReceiveStatus
  .text.USBD_GetLen
-                0x080007f8       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08000e90       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_SetFeature
-                0x0800080c       0x20 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08000ea4       0x20 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_ParseSetupRequest
-                0x0800082c       0x28 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x0800082c                USBD_ParseSetupRequest
+                0x08000ec4       0x28 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08000ec4                USBD_ParseSetupRequest
  .text.USBD_CtlError
-                0x08000854       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x08000854                USBD_CtlError
+                0x08000eec       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08000eec                USBD_CtlError
  .text.USBD_GetDescriptor
-                0x08000868      0x144 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08000f00      0x144 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_SetAddress
-                0x080009ac       0x4c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001044       0x4c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_SetConfig
-                0x080009f8       0xa8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001090       0xa8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_GetConfig
-                0x08000aa0       0x40 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001138       0x40 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_GetStatus
-                0x08000ae0       0x30 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001178       0x30 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_ClrFeature
-                0x08000b10       0x30 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x080011a8       0x30 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .text.USBD_StdDevReq
-                0x08000b40       0x48 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x08000b40                USBD_StdDevReq
+                0x080011d8       0x48 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x080011d8                USBD_StdDevReq
  .text.USBD_StdItfReq
-                0x08000b88       0x38 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x08000b88                USBD_StdItfReq
+                0x08001220       0x38 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001220                USBD_StdItfReq
  .text.USBD_StdEPReq
-                0x08000bc0      0x108 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x08000bc0                USBD_StdEPReq
+                0x08001258      0x108 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001258                USBD_StdEPReq
  .text.USBD_GetString
-                0x08000cc8       0x3c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                0x08000cc8                USBD_GetString
+                0x08001360       0x3c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x08001360                USBD_GetString
  .text.USBD_Init
-                0x08000d04       0x28 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d04                USBD_Init
+                0x0800139c       0x28 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x0800139c                USBD_Init
  .text.USBD_RegisterClass
-                0x08000d2c       0x10 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d2c                USBD_RegisterClass
+                0x080013c4       0x10 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080013c4                USBD_RegisterClass
  .text.USBD_Start
-                0x08000d3c        0xc Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d3c                USBD_Start
+                0x080013d4        0xc Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080013d4                USBD_Start
  .text.USBD_SetClassConfig
-                0x08000d48       0x1c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d48                USBD_SetClassConfig
+                0x080013e0       0x1c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080013e0                USBD_SetClassConfig
  .text.USBD_ClrClassConfig
-                0x08000d64       0x10 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d64                USBD_ClrClassConfig
- .text.USBD_LL_SetupStage
-                0x08000d74       0x5c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000d74                USBD_LL_SetupStage
- .text.USBD_LL_DataOutStage
-                0x08000dd0       0x60 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000dd0                USBD_LL_DataOutStage
- .text.USBD_LL_DataInStage
-                0x08000e30       0x8c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000e30                USBD_LL_DataInStage
- .text.USBD_LL_Reset
-                0x08000ebc       0x40 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000ebc                USBD_LL_Reset
- .text.USBD_LL_SetSpeed
-                0x08000efc        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000efc                USBD_LL_SetSpeed
- .text.USBD_LL_Suspend
-                0x08000f04       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f04                USBD_LL_Suspend
- .text.USBD_LL_Resume
-                0x08000f18        0xc Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f18                USBD_LL_Resume
- .text.USBD_LL_SOF
-                0x08000f24       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f24                USBD_LL_SOF
- .text.USBD_LL_IsoINIncomplete
-                0x08000f3c        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f3c                USBD_LL_IsoINIncomplete
- .text.USBD_LL_IsoOUTIncomplete
-                0x08000f40        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f40                USBD_LL_IsoOUTIncomplete
- .text.USBD_LL_DevConnected
-                0x08000f44        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f44                USBD_LL_DevConnected
- .text.USBD_LL_DevDisconnected
-                0x08000f48       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                0x08000f48                USBD_LL_DevDisconnected
+                0x080013fc       0x10 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080013fc                USBD_ClrClassConfig
+ .text.USBD_SetupStage
+                0x0800140c       0x5c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x0800140c                USBD_SetupStage
+ .text.USBD_DataOutStage
+                0x08001468       0x60 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x08001468                USBD_DataOutStage
+ .text.USBD_DataInStage
+                0x080014c8       0x8c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080014c8                USBD_DataInStage
+ .text.USBD_Reset
+                0x08001554       0x40 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x08001554                USBD_Reset
+ .text.USBD_SetSpeed
+                0x08001594        0x8 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x08001594                USBD_SetSpeed
+ .text.USBD_Suspend
+                0x0800159c       0x14 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x0800159c                USBD_Suspend
+ .text.USBD_Resume
+                0x080015b0        0xc Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015b0                USBD_Resume
+ .text.USBD_SOF
+                0x080015bc       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015bc                USBD_SOF
+ .text.USBD_IsoINIncomplete
+                0x080015d4        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015d4                USBD_IsoINIncomplete
+ .text.USBD_IsoOUTIncomplete
+                0x080015d8        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015d8                USBD_IsoOUTIncomplete
+ .text.USBD_DevConnected
+                0x080015dc        0x4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015dc                USBD_DevConnected
+ .text.USBD_DevDisconnected
+                0x080015e0       0x18 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015e0                USBD_DevDisconnected
+ .text.USBD_BufferFreed
+                0x080015f8       0x10 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x080015f8                USBD_BufferFreed
+ .text.SCSI_StartStopUnit
+                0x08001608       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_RequestSense
+                0x08001624       0xb4 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .text.SCSI_Inquiry
-                0x08000f60       0x4c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x080016d8       0x6c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .text.SCSI_ModeSense6
-                0x08000fac       0x24 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001744       0x40 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .text.SCSI_ModeSense10
-                0x08000fd0       0x24 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_RequestSense
-                0x08000ff4       0x68 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_StartStopUnit
-                0x0800105c        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001784       0x40 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_Write10FreePacketCallback
+                0x080017c4       0x3c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x080017c4                SCSI_Write10FreePacketCallback
  .text.SCSI_SenseCode
-                0x08001068       0x30 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
-                0x08001068                SCSI_SenseCode
+                0x08001800       0x30 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001800                SCSI_SenseCode
+ .text.SCSI_CheckAddressRange
+                0x08001830       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_Verify10
+                0x08001864       0x6c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_TestUnitReadyCallback
+                0x080018d0       0x48 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x080018d0                SCSI_TestUnitReadyCallback
  .text.SCSI_TestUnitReady
-                0x08001098       0x4c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_ReadFormatCapacity
-                0x080010e4       0x7c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001918       0x58 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_ReadCapacity10Callback
+                0x08001970       0x9c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001970                SCSI_ReadCapacity10Callback
  .text.SCSI_ReadCapacity10
-                0x08001160       0x64 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_CheckAddressRange
-                0x080011c4       0x24 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_ProcessRead
-                0x080011e8       0x90 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001a0c       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_ReadFormatCapacityCallback
+                0x08001a28       0xa4 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001a28                SCSI_ReadFormatCapacityCallback
+ .text.SCSI_ReadFormatCapacity
+                0x08001acc       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_Read10BeginCallback
+                0x08001ae8       0x60 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001ae8                SCSI_Read10BeginCallback
  .text.SCSI_Read10
-                0x08001278       0xc8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_ProcessWrite
-                0x08001340       0xa0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001b48       0xec Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .text.SCSI_Read10ReplyCallback
+                0x08001c34       0x64 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001c34                SCSI_Read10ReplyCallback
+ .text.SCSI_Write10BeginCallback
+                0x08001c98       0x80 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001c98                SCSI_Write10BeginCallback
  .text.SCSI_Write10
-                0x080013e0      0x104 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .text.SCSI_Verify10
-                0x080014e4       0x38 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001d18      0x160 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .text.SCSI_ProcessCmd
-                0x0800151c       0xc0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
-                0x0800151c                SCSI_ProcessCmd
+                0x08001e78       0xf0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x08001e78                SCSI_ProcessCmd
  .text.MSC_BOT_Abort
-                0x080015dc       0x3c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08001f68       0x3c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+ .text.MSC_BOT_CBW_Decode
+                0x08001fa4       0x74 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .text.MSC_BOT_SendData
-                0x08001618       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002018       0x2c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .text.MSC_BOT_Init
-                0x0800164c       0x40 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x0800164c                MSC_BOT_Init
+                0x08002044       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002044                MSC_BOT_Init
  .text.MSC_BOT_Reset
-                0x0800168c       0x1c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x0800168c                MSC_BOT_Reset
+                0x08002078       0x18 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002078                MSC_BOT_Reset
  .text.MSC_BOT_DeInit
-                0x080016a8        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x080016a8                MSC_BOT_DeInit
+                0x08002090        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002090                MSC_BOT_DeInit
+ .text.MSC_BOT_DataOut
+                0x0800209c       0x30 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x0800209c                MSC_BOT_DataOut
  .text.MSC_BOT_SendCSW
-                0x080016b4       0x38 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x080016b4                MSC_BOT_SendCSW
+                0x080020cc       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x080020cc                MSC_BOT_SendCSW
  .text.MSC_BOT_DataIn
-                0x080016ec       0x38 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x080016ec                MSC_BOT_DataIn
- .text.MSC_BOT_CBW_Decode
-                0x08001724       0xa8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
- .text.MSC_BOT_DataOut
-                0x080017cc       0x34 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x080017cc                MSC_BOT_DataOut
+                0x08002100       0x38 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002100                MSC_BOT_DataIn
+ .text.MSC_BOT_DataIn_Callback
+                0x08002138       0x18 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002138                MSC_BOT_DataIn_Callback
+ .text.MSC_BOT_DataOut_Callback
+                0x08002150       0x18 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002150                MSC_BOT_DataOut_Callback
+ .text.MSC_BOT_CBW_Decode_Callback
+                0x08002168       0x5c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x08002168                MSC_BOT_CBW_Decode_Callback
  .text.MSC_BOT_CplClrFeature
-                0x08001800       0x2c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                0x08001800                MSC_BOT_CplClrFeature
+                0x080021c4       0x2c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x080021c4                MSC_BOT_CplClrFeature
  .text.USBD_MSC_GetHSCfgDesc
-                0x0800182c        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x0800182c                USBD_MSC_GetHSCfgDesc
+                0x080021f0        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080021f0                USBD_MSC_GetHSCfgDesc
  .text.USBD_MSC_GetFSCfgDesc
-                0x08001838        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x08001838                USBD_MSC_GetFSCfgDesc
+                0x080021fc        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080021fc                USBD_MSC_GetFSCfgDesc
  .text.USBD_MSC_GetOtherSpeedCfgDesc
-                0x08001844        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x08001844                USBD_MSC_GetOtherSpeedCfgDesc
+                0x08002208        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x08002208                USBD_MSC_GetOtherSpeedCfgDesc
  .text.USBD_MSC_GetDeviceQualifierDescriptor
-                0x08001850        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x08001850                USBD_MSC_GetDeviceQualifierDescriptor
+                0x08002214        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x08002214                USBD_MSC_GetDeviceQualifierDescriptor
  .text.USBD_MSC_Init
-                0x0800185c       0x58 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x0800185c                USBD_MSC_Init
+                0x08002220       0x5c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x08002220                USBD_MSC_Init
  .text.USBD_MSC_DeInit
-                0x080018b4       0x2c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x080018b4                USBD_MSC_DeInit
+                0x0800227c       0x2c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x0800227c                USBD_MSC_DeInit
  .text.USBD_MSC_Setup
-                0x080018e0      0x108 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x080018e0                USBD_MSC_Setup
+                0x080022a8       0xfc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080022a8                USBD_MSC_Setup
  .text.USBD_MSC_DataIn
-                0x080019e8        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x080019e8                USBD_MSC_DataIn
+                0x080023a4        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080023a4                USBD_MSC_DataIn
  .text.USBD_MSC_DataOut
-                0x080019f4        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x080019f4                USBD_MSC_DataOut
- .text.USBD_MSC_RegisterStorage
-                0x08001a00        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x08001a00                USBD_MSC_RegisterStorage
+                0x080023b0        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080023b0                USBD_MSC_DataOut
+ .text.USBD_MSC_BufferFreed
+                0x080023bc       0x24 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x080023bc                USBD_MSC_BufferFreed
  .text.USB_CoreReset
-                0x08001a0c       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080023e0       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .text.USB_CoreInit
-                0x08001a44       0x78 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001a44                USB_CoreInit
+                0x08002418       0x78 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002418                USB_CoreInit
  .text.USB_EnableGlobalInt
-                0x08001abc        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001abc                USB_EnableGlobalInt
+                0x08002490        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002490                USB_EnableGlobalInt
  .text.USB_DisableGlobalInt
-                0x08001ac8        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001ac8                USB_DisableGlobalInt
+                0x0800249c        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x0800249c                USB_DisableGlobalInt
  .text.USB_SetCurrentMode
-                0x08001ad4       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001ad4                USB_SetCurrentMode
+                0x080024a8       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080024a8                USB_SetCurrentMode
  .text.USB_FlushTxFifo
-                0x08001b00       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001b00                USB_FlushTxFifo
+                0x080024d4       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080024d4                USB_FlushTxFifo
  .text.USB_FlushRxFifo
-                0x08001b24       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001b24                USB_FlushRxFifo
+                0x080024f8       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080024f8                USB_FlushRxFifo
  .text.USB_SetDevSpeed
-                0x08001b44       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001b44                USB_SetDevSpeed
+                0x08002518       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002518                USB_SetDevSpeed
  .text.USB_DevInit
-                0x08001b54      0x144 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001b54                USB_DevInit
+                0x08002528      0x144 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002528                USB_DevInit
  .text.USB_GetDevSpeed
-                0x08001c98       0x40 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001c98                USB_GetDevSpeed
+                0x0800266c       0x40 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x0800266c                USB_GetDevSpeed
  .text.USB_ActivateEndpoint
-                0x08001cd8       0x8c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001cd8                USB_ActivateEndpoint
+                0x080026ac       0x8c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080026ac                USB_ActivateEndpoint
  .text.USB_DeactivateEndpoint
-                0x08001d64       0x7c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001d64                USB_DeactivateEndpoint
+                0x08002738       0x7c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002738                USB_DeactivateEndpoint
  .text.USB_EP0StartXfer
-                0x08001de0      0x158 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001de0                USB_EP0StartXfer
+                0x080027b4      0x158 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x080027b4                USB_EP0StartXfer
  .text.USB_WritePacket
-                0x08001f38       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001f38                USB_WritePacket
+                0x0800290c       0x28 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x0800290c                USB_WritePacket
  .text.USB_EPStartXfer
-                0x08001f60      0x258 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08001f60                USB_EPStartXfer
+                0x08002934      0x258 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002934                USB_EPStartXfer
  .text.USB_ReadPacket
-                0x080021b8       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080021b8                USB_ReadPacket
+                0x08002b8c       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002b8c                USB_ReadPacket
  .text.USB_EPSetStall
-                0x080021e4       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080021e4                USB_EPSetStall
+                0x08002bb8       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002bb8                USB_EPSetStall
  .text.USB_EPClearStall
-                0x0800223c       0x60 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x0800223c                USB_EPClearStall
+                0x08002c10       0x60 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002c10                USB_EPClearStall
  .text.USB_SetDevAddress
-                0x0800229c       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x0800229c                USB_SetDevAddress
+                0x08002c70       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002c70                USB_SetDevAddress
  .text.USB_DevConnect
-                0x080022bc       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080022bc                USB_DevConnect
+                0x08002c90       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002c90                USB_DevConnect
  .text.USB_DevDisconnect
-                0x080022d4       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080022d4                USB_DevDisconnect
+                0x08002ca8       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002ca8                USB_DevDisconnect
  .text.USB_ReadInterrupts
-                0x080022ec        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080022ec                USB_ReadInterrupts
+                0x08002cc0        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002cc0                USB_ReadInterrupts
  .text.USB_ReadDevAllOutEpInterrupt
-                0x080022f4       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x080022f4                USB_ReadDevAllOutEpInterrupt
+                0x08002cc8       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002cc8                USB_ReadDevAllOutEpInterrupt
  .text.USB_ReadDevAllInEpInterrupt
-                0x08002304       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08002304                USB_ReadDevAllInEpInterrupt
+                0x08002cd8       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002cd8                USB_ReadDevAllInEpInterrupt
  .text.USB_ReadDevOutEPInterrupt
-                0x08002314       0x14 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08002314                USB_ReadDevOutEPInterrupt
+                0x08002ce8       0x14 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002ce8                USB_ReadDevOutEPInterrupt
  .text.USB_ReadDevInEPInterrupt
-                0x08002328       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08002328                USB_ReadDevInEPInterrupt
+                0x08002cfc       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002cfc                USB_ReadDevInEPInterrupt
  .text.USB_GetMode
-                0x0800234c        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x0800234c                USB_GetMode
+                0x08002d20        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002d20                USB_GetMode
  .text.USB_ActivateSetup
-                0x08002354       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x08002354                USB_ActivateSetup
+                0x08002d28       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002d28                USB_ActivateSetup
  .text.USB_EP0_OutStart
-                0x0800238c       0x44 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                0x0800238c                USB_EP0_OutStart
+                0x08002d60       0x44 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x08002d60                USB_EP0_OutStart
+ .text.SPI_WaitOnFlagUntilTimeout
+                0x08002da4       0xe4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_SPI_Init
-                0x080023d0       0x80 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
-                0x080023d0                HAL_SPI_Init
+                0x08002e88       0x84 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x08002e88                HAL_SPI_Init
+ .text.HAL_SPI_Transmit_DMA
+                0x08002f0c       0xd0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x08002f0c                HAL_SPI_Transmit_DMA
+ .text.HAL_SPI_TransmitReceive_DMA
+                0x08002fdc      0x13c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x08002fdc                HAL_SPI_TransmitReceive_DMA
+ .text.HAL_SPI_Receive_DMA
+                0x08003118       0xf0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x08003118                HAL_SPI_Receive_DMA
+ .text.HAL_SPI_TxRxCpltCallback
+                0x08003208        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x08003208                HAL_SPI_TxRxCpltCallback
+ .text.HAL_SPI_TxHalfCpltCallback
+                0x0800320c        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x0800320c                HAL_SPI_TxHalfCpltCallback
+ .text.SPI_DMAHalfTransmitCplt
+                0x08003210        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.HAL_SPI_RxHalfCpltCallback
+                0x0800321c        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x0800321c                HAL_SPI_RxHalfCpltCallback
+ .text.SPI_DMAHalfReceiveCplt
+                0x08003220        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.HAL_SPI_TxRxHalfCpltCallback
+                0x0800322c        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x0800322c                HAL_SPI_TxRxHalfCpltCallback
+ .text.SPI_DMAHalfTransmitReceiveCplt
+                0x08003230        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.SPI_DMAError
+                0x0800323c       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.SPI_DMATransmitCplt
+                0x0800325c       0x78 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.SPI_DMAReceiveCplt
+                0x080032d4       0xc8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .text.SPI_DMATransmitReceiveCplt
+                0x0800339c       0xcc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .text.HAL_RCC_OscConfig
-                0x08002450      0x310 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                0x08002450                HAL_RCC_OscConfig
+                0x08003468      0x310 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x08003468                HAL_RCC_OscConfig
  .text.HAL_RCC_ClockConfig
-                0x08002760      0x22c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                0x08002760                HAL_RCC_ClockConfig
+                0x08003778      0x22c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x08003778                HAL_RCC_ClockConfig
  .text.HAL_RCC_GetSysClockFreq
-                0x0800298c       0x98 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                0x0800298c                HAL_RCC_GetSysClockFreq
+                0x080039a4       0x98 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x080039a4                HAL_RCC_GetSysClockFreq
  .text.HAL_RCC_GetHCLKFreq
-                0x08002a24       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                0x08002a24                HAL_RCC_GetHCLKFreq
+                0x08003a3c       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x08003a3c                HAL_RCC_GetHCLKFreq
  .text.HAL_PCDEx_SetTxFiFo
-                0x08002a5c       0x48 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
-                0x08002a5c                HAL_PCDEx_SetTxFiFo
+                0x08003a74       0x48 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+                0x08003a74                HAL_PCDEx_SetTxFiFo
  .text.HAL_PCDEx_SetRxFiFo
-                0x08002aa4        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
-                0x08002aa4                HAL_PCDEx_SetRxFiFo
+                0x08003abc        0x8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+                0x08003abc                HAL_PCDEx_SetRxFiFo
  .text.PCD_WriteEmptyTxFifo
-                0x08002aac       0xbc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08003ac4       0xc0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .text.HAL_PCD_Init
-                0x08002b68       0xdc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08002b68                HAL_PCD_Init
+                0x08003b84       0xe0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08003b84                HAL_PCD_Init
  .text.HAL_PCD_Start
-                0x08002c44       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08002c44                HAL_PCD_Start
+                0x08003c64       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08003c64                HAL_PCD_Start
  .text.HAL_PCD_IRQHandler
-                0x08002c70      0x450 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08002c70                HAL_PCD_IRQHandler
+                0x08003c90      0x450 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08003c90                HAL_PCD_IRQHandler
  .text.HAL_PCD_SetAddress
-                0x080030c0       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x080030c0                HAL_PCD_SetAddress
+                0x080040e0       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x080040e0                HAL_PCD_SetAddress
  .text.HAL_PCD_EP_Open
-                0x080030e4       0x68 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x080030e4                HAL_PCD_EP_Open
+                0x08004104       0x68 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08004104                HAL_PCD_EP_Open
  .text.HAL_PCD_EP_Close
-                0x0800314c       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x0800314c                HAL_PCD_EP_Close
+                0x0800416c       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x0800416c                HAL_PCD_EP_Close
  .text.HAL_PCD_EP_Receive
-                0x080031a4       0x6c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x080031a4                HAL_PCD_EP_Receive
+                0x080041c4       0x6c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x080041c4                HAL_PCD_EP_Receive
  .text.HAL_PCD_EP_GetRxCount
-                0x08003210       0x14 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08003210                HAL_PCD_EP_GetRxCount
+                0x08004230       0x14 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08004230                HAL_PCD_EP_GetRxCount
  .text.HAL_PCD_EP_Transmit
-                0x08003224       0x68 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08003224                HAL_PCD_EP_Transmit
+                0x08004244       0x68 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08004244                HAL_PCD_EP_Transmit
  .text.HAL_PCD_EP_SetStall
-                0x0800328c       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x0800328c                HAL_PCD_EP_SetStall
+                0x080042ac       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x080042ac                HAL_PCD_EP_SetStall
  .text.HAL_PCD_EP_ClrStall
-                0x080032f0       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x080032f0                HAL_PCD_EP_ClrStall
+                0x08004310       0x58 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08004310                HAL_PCD_EP_ClrStall
  .text.HAL_PCD_EP_Flush
-                0x08003348       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                0x08003348                HAL_PCD_EP_Flush
+                0x08004368       0x38 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x08004368                HAL_PCD_EP_Flush
  .text.HAL_GPIO_Init
-                0x08003380      0x1cc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
-                0x08003380                HAL_GPIO_Init
- .text.HAL_CRC_Init
-                0x0800354c       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
-                0x0800354c                HAL_CRC_Init
+                0x080043a0      0x1cc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+                0x080043a0                HAL_GPIO_Init
+ .text.DMA_SetConfig
+                0x0800456c       0x2c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .text.HAL_DMA_Init
+                0x08004598       0x7c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+                0x08004598                HAL_DMA_Init
+ .text.HAL_DMA_Start_IT
+                0x08004614       0x6c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+                0x08004614                HAL_DMA_Start_IT
+ .text.HAL_DMA_IRQHandler
+                0x08004680     0x236c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+                0x08004680                HAL_DMA_IRQHandler
  .text.HAL_NVIC_SetPriorityGrouping
-                0x0800356c       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
-                0x0800356c                HAL_NVIC_SetPriorityGrouping
+                0x080069ec       0x24 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                0x080069ec                HAL_NVIC_SetPriorityGrouping
  .text.HAL_NVIC_SetPriority
-                0x08003590       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
-                0x08003590                HAL_NVIC_SetPriority
+                0x08006a10       0x64 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                0x08006a10                HAL_NVIC_SetPriority
  .text.HAL_NVIC_EnableIRQ
-                0x080035f4       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
-                0x080035f4                HAL_NVIC_EnableIRQ
+                0x08006a74       0x18 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                0x08006a74                HAL_NVIC_EnableIRQ
  .text.HAL_SYSTICK_Config
-                0x0800360c       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
-                0x0800360c                HAL_SYSTICK_Config
+                0x08006a8c       0x20 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                0x08006a8c                HAL_SYSTICK_Config
  .text.HAL_InitTick
-                0x0800362c       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                0x0800362c                HAL_InitTick
+                0x08006aac       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x08006aac                HAL_InitTick
  .text.HAL_Init
-                0x08003648       0x34 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                0x08003648                HAL_Init
+                0x08006ac8       0x34 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x08006ac8                HAL_Init
  .text.HAL_IncTick
-                0x0800367c       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                0x0800367c                HAL_IncTick
+                0x08006afc       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x08006afc                HAL_IncTick
  .text.HAL_GetTick
-                0x0800368c        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                0x0800368c                HAL_GetTick
+                0x08006b0c        0xc Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x08006b0c                HAL_GetTick
  .text.HAL_Delay
-                0x08003698       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                0x08003698                HAL_Delay
+                0x08006b18       0x1c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x08006b18                HAL_Delay
  .text.SystemInit
-                0x080036b4       0x40 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
-                0x080036b4                SystemInit
+                0x08006b34       0x40 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+                0x08006b34                SystemInit
  .text.Reset_Handler
-                0x080036f4       0x4c Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
-                0x080036f4                Reset_Handler
+                0x08006b74       0x4c Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
+                0x08006b74                Reset_Handler
  .text.Default_Handler
-                0x08003740        0x2 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
-                0x08003740                RTC_Alarm_IRQHandler
-                0x08003740                HASH_RNG_IRQHandler
-                0x08003740                EXTI2_IRQHandler
-                0x08003740                TIM8_CC_IRQHandler
-                0x08003740                DebugMon_Handler
-                0x08003740                TIM1_CC_IRQHandler
-                0x08003740                DMA2_Stream5_IRQHandler
-                0x08003740                HardFault_Handler
-                0x08003740                DMA1_Stream5_IRQHandler
-                0x08003740                PVD_IRQHandler
-                0x08003740                SDIO_IRQHandler
-                0x08003740                TAMP_STAMP_IRQHandler
-                0x08003740                PendSV_Handler
-                0x08003740                NMI_Handler
-                0x08003740                CAN2_RX1_IRQHandler
-                0x08003740                EXTI3_IRQHandler
-                0x08003740                TIM8_TRG_COM_TIM14_IRQHandler
-                0x08003740                TIM1_UP_TIM10_IRQHandler
-                0x08003740                TIM8_UP_TIM13_IRQHandler
-                0x08003740                I2C3_ER_IRQHandler
-                0x08003740                EXTI0_IRQHandler
-                0x08003740                I2C2_EV_IRQHandler
-                0x08003740                DMA1_Stream2_IRQHandler
-                0x08003740                CAN1_RX0_IRQHandler
-                0x08003740                FPU_IRQHandler
-                0x08003740                OTG_HS_WKUP_IRQHandler
-                0x08003740                UsageFault_Handler
-                0x08003740                CAN2_SCE_IRQHandler
-                0x08003740                DMA2_Stream2_IRQHandler
-                0x08003740                SPI1_IRQHandler
-                0x08003740                TIM6_DAC_IRQHandler
-                0x08003740                TIM1_BRK_TIM9_IRQHandler
-                0x08003740                CAN2_RX0_IRQHandler
-                0x08003740                DMA2_Stream3_IRQHandler
-                0x08003740                USART6_IRQHandler
-                0x08003740                USART3_IRQHandler
-                0x08003740                CAN1_RX1_IRQHandler
-                0x08003740                UART5_IRQHandler
-                0x08003740                DMA2_Stream0_IRQHandler
-                0x08003740                TIM4_IRQHandler
-                0x08003740                I2C1_EV_IRQHandler
-                0x08003740                DMA1_Stream6_IRQHandler
-                0x08003740                DMA1_Stream1_IRQHandler
-                0x08003740                UART4_IRQHandler
-                0x08003740                TIM3_IRQHandler
-                0x08003740                RCC_IRQHandler
-                0x08003740                TIM8_BRK_TIM12_IRQHandler
-                0x08003740                Default_Handler
-                0x08003740                EXTI15_10_IRQHandler
-                0x08003740                ADC_IRQHandler
-                0x08003740                DMA1_Stream7_IRQHandler
-                0x08003740                TIM7_IRQHandler
-                0x08003740                CAN2_TX_IRQHandler
-                0x08003740                TIM5_IRQHandler
-                0x08003740                DMA2_Stream7_IRQHandler
-                0x08003740                I2C3_EV_IRQHandler
-                0x08003740                EXTI9_5_IRQHandler
-                0x08003740                RTC_WKUP_IRQHandler
-                0x08003740                SPI2_IRQHandler
-                0x08003740                OTG_HS_EP1_IN_IRQHandler
-                0x08003740                MemManage_Handler
-                0x08003740                DMA1_Stream0_IRQHandler
-                0x08003740                CAN1_TX_IRQHandler
-                0x08003740                SVC_Handler
-                0x08003740                EXTI4_IRQHandler
-                0x08003740                FSMC_IRQHandler
-                0x08003740                OTG_HS_EP1_OUT_IRQHandler
-                0x08003740                WWDG_IRQHandler
-                0x08003740                TIM2_IRQHandler
-                0x08003740                OTG_FS_WKUP_IRQHandler
-                0x08003740                TIM1_TRG_COM_TIM11_IRQHandler
-                0x08003740                OTG_HS_IRQHandler
-                0x08003740                EXTI1_IRQHandler
-                0x08003740                USART2_IRQHandler
-                0x08003740                I2C2_ER_IRQHandler
-                0x08003740                DMA2_Stream1_IRQHandler
-                0x08003740                CAN1_SCE_IRQHandler
-                0x08003740                FLASH_IRQHandler
-                0x08003740                DMA2_Stream4_IRQHandler
-                0x08003740                BusFault_Handler
-                0x08003740                USART1_IRQHandler
-                0x08003740                SPI3_IRQHandler
-                0x08003740                DMA1_Stream4_IRQHandler
-                0x08003740                I2C1_ER_IRQHandler
-                0x08003740                DMA2_Stream6_IRQHandler
-                0x08003740                DMA1_Stream3_IRQHandler
- *fill*         0x08003742        0x2 
- .text.malloc   0x08003744       0x10 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
-                0x08003744                malloc
- .text.free     0x08003754       0x10 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
-                0x08003754                free
- .text._free_r  0x08003764       0x88 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
-                0x08003764                _free_r
+                0x08006bc0        0x2 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
+                0x08006bc0                RTC_Alarm_IRQHandler
+                0x08006bc0                HASH_RNG_IRQHandler
+                0x08006bc0                EXTI2_IRQHandler
+                0x08006bc0                TIM8_CC_IRQHandler
+                0x08006bc0                DebugMon_Handler
+                0x08006bc0                TIM1_CC_IRQHandler
+                0x08006bc0                DMA2_Stream5_IRQHandler
+                0x08006bc0                HardFault_Handler
+                0x08006bc0                DMA1_Stream5_IRQHandler
+                0x08006bc0                PVD_IRQHandler
+                0x08006bc0                SDIO_IRQHandler
+                0x08006bc0                TAMP_STAMP_IRQHandler
+                0x08006bc0                PendSV_Handler
+                0x08006bc0                NMI_Handler
+                0x08006bc0                CAN2_RX1_IRQHandler
+                0x08006bc0                TIM8_TRG_COM_TIM14_IRQHandler
+                0x08006bc0                TIM1_UP_TIM10_IRQHandler
+                0x08006bc0                TIM8_UP_TIM13_IRQHandler
+                0x08006bc0                I2C3_ER_IRQHandler
+                0x08006bc0                EXTI0_IRQHandler
+                0x08006bc0                I2C2_EV_IRQHandler
+                0x08006bc0                DMA1_Stream2_IRQHandler
+                0x08006bc0                CAN1_RX0_IRQHandler
+                0x08006bc0                FPU_IRQHandler
+                0x08006bc0                OTG_HS_WKUP_IRQHandler
+                0x08006bc0                UsageFault_Handler
+                0x08006bc0                CAN2_SCE_IRQHandler
+                0x08006bc0                SPI1_IRQHandler
+                0x08006bc0                TIM6_DAC_IRQHandler
+                0x08006bc0                TIM1_BRK_TIM9_IRQHandler
+                0x08006bc0                CAN2_RX0_IRQHandler
+                0x08006bc0                USART6_IRQHandler
+                0x08006bc0                USART3_IRQHandler
+                0x08006bc0                CAN1_RX1_IRQHandler
+                0x08006bc0                UART5_IRQHandler
+                0x08006bc0                DMA2_Stream0_IRQHandler
+                0x08006bc0                TIM4_IRQHandler
+                0x08006bc0                I2C1_EV_IRQHandler
+                0x08006bc0                DMA1_Stream6_IRQHandler
+                0x08006bc0                DMA1_Stream1_IRQHandler
+                0x08006bc0                UART4_IRQHandler
+                0x08006bc0                TIM3_IRQHandler
+                0x08006bc0                RCC_IRQHandler
+                0x08006bc0                TIM8_BRK_TIM12_IRQHandler
+                0x08006bc0                Default_Handler
+                0x08006bc0                EXTI15_10_IRQHandler
+                0x08006bc0                ADC_IRQHandler
+                0x08006bc0                DMA1_Stream7_IRQHandler
+                0x08006bc0                TIM7_IRQHandler
+                0x08006bc0                CAN2_TX_IRQHandler
+                0x08006bc0                TIM5_IRQHandler
+                0x08006bc0                DMA2_Stream7_IRQHandler
+                0x08006bc0                I2C3_EV_IRQHandler
+                0x08006bc0                EXTI9_5_IRQHandler
+                0x08006bc0                RTC_WKUP_IRQHandler
+                0x08006bc0                SPI2_IRQHandler
+                0x08006bc0                OTG_HS_EP1_IN_IRQHandler
+                0x08006bc0                MemManage_Handler
+                0x08006bc0                DMA1_Stream0_IRQHandler
+                0x08006bc0                CAN1_TX_IRQHandler
+                0x08006bc0                SVC_Handler
+                0x08006bc0                EXTI4_IRQHandler
+                0x08006bc0                FSMC_IRQHandler
+                0x08006bc0                OTG_HS_EP1_OUT_IRQHandler
+                0x08006bc0                WWDG_IRQHandler
+                0x08006bc0                TIM2_IRQHandler
+                0x08006bc0                OTG_FS_WKUP_IRQHandler
+                0x08006bc0                TIM1_TRG_COM_TIM11_IRQHandler
+                0x08006bc0                OTG_HS_IRQHandler
+                0x08006bc0                EXTI1_IRQHandler
+                0x08006bc0                USART2_IRQHandler
+                0x08006bc0                I2C2_ER_IRQHandler
+                0x08006bc0                DMA2_Stream1_IRQHandler
+                0x08006bc0                CAN1_SCE_IRQHandler
+                0x08006bc0                FLASH_IRQHandler
+                0x08006bc0                DMA2_Stream4_IRQHandler
+                0x08006bc0                BusFault_Handler
+                0x08006bc0                USART1_IRQHandler
+                0x08006bc0                SPI3_IRQHandler
+                0x08006bc0                DMA1_Stream4_IRQHandler
+                0x08006bc0                I2C1_ER_IRQHandler
+                0x08006bc0                DMA2_Stream6_IRQHandler
+                0x08006bc0                DMA1_Stream3_IRQHandler
+ *fill*         0x08006bc2        0x2 
+ .text.malloc   0x08006bc4       0x10 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
+                0x08006bc4                malloc
+ .text.free     0x08006bd4       0x10 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
+                0x08006bd4                free
+ .text._free_r  0x08006be4       0x88 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
+                0x08006be4                _free_r
  .text._malloc_r
-                0x080037ec       0xac /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
-                0x080037ec                _malloc_r
- .text._sbrk_r  0x08003898       0x20 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
-                0x08003898                _sbrk_r
- .text._sbrk    0x080038b8       0x1c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
-                0x080038b8                _sbrk
+                0x08006c6c       0xac /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
+                0x08006c6c                _malloc_r
+ .text._sbrk_r  0x08006d18       0x20 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
+                0x08006d18                _sbrk_r
+ .text._sbrk    0x08006d38       0x1c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
+                0x08006d38                _sbrk
  *(.init)
  *(.fini)
  *(.rodata*)
- .rodata.STORAGE_Inquirydata_FS
-                0x080038d4       0x24 Src/usbd_storage_if.o
-                0x080038d4                STORAGE_Inquirydata_FS
  .rodata.str1.4
-                0x080038f8       0x54 Src/usbd_desc.o
+                0x08006d54       0x54 Src/usbd_descriptors.o
+ .rodata.STORAGE_Inquirydata_FS
+                0x08006da8       0x24 Src/usbd_descriptors.o
+                0x08006da8                STORAGE_Inquirydata_FS
  .rodata.MSC_Page00_Inquiry_Data
-                0x0800394c        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
-                0x0800394c                MSC_Page00_Inquiry_Data
+                0x08006dcc        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+                0x08006dcc                MSC_Page00_Inquiry_Data
  .rodata.MSC_Mode_Sense10_data
-                0x08003954        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
-                0x08003954                MSC_Mode_Sense10_data
+                0x08006dd4        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+                0x08006dd4                MSC_Mode_Sense10_data
  .rodata.MSC_Mode_Sense6_data
-                0x0800395c        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
-                0x0800395c                MSC_Mode_Sense6_data
+                0x08006ddc        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+                0x08006ddc                MSC_Mode_Sense6_data
  .rodata.APBAHBPrescTable
-                0x08003964       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                0x08003964                APBAHBPrescTable
+                0x08006de4       0x10 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x08006de4                APBAHBPrescTable
  .rodata.str1.1
-                0x08003974        0x2 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
+                0x08006df4        0x2 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
  *(.eh_frame*)
-                0x08003976                __etext = .
+                0x08006df6                __etext = .
 
-.glue_7         0x08003978        0x0
+.glue_7         0x08006df8        0x0
  .glue_7        0x00000000        0x0 linker stubs
 
-.glue_7t        0x08003978        0x0
+.glue_7t        0x08006df8        0x0
  .glue_7t       0x00000000        0x0 linker stubs
 
-.vfp11_veneer   0x08003978        0x0
+.vfp11_veneer   0x08006df8        0x0
  .vfp11_veneer  0x00000000        0x0 linker stubs
 
-.v4_bx          0x08003978        0x0
+.v4_bx          0x08006df8        0x0
  .v4_bx         0x00000000        0x0 linker stubs
 
-.iplt           0x08003978        0x0
- .iplt          0x00000000        0x0 Src/usbd_storage_if.o
+.iplt           0x08006df8        0x0
+ .iplt          0x00000000        0x0 Src/usbd_descriptors.o
 
-.rel.dyn        0x08003978        0x0
- .rel.iplt      0x00000000        0x0 Src/usbd_storage_if.o
+.rel.dyn        0x08006df8        0x0
+ .rel.iplt      0x00000000        0x0 Src/usbd_descriptors.o
 
-.data           0x20000000      0x160 load address 0x08003976
+.data           0x20000000      0x144 load address 0x08006df6
                 0x20000000                __data_start__ = .
  *(vtable)
  *(.data*)
- .data.USBD_Storage_Interface_fops_FS
-                0x20000000       0x20 Src/usbd_storage_if.o
-                0x20000000                USBD_Storage_Interface_fops_FS
- .data.FS_Desc  0x20000020       0x1c Src/usbd_desc.o
-                0x20000020                FS_Desc
+ .data.FS_Desc  0x20000000       0x1c Src/usbd_descriptors.o
+                0x20000000                FS_Desc
  .data.USBD_LangIDDesc
-                0x2000003c        0x4 Src/usbd_desc.o
-                0x2000003c                USBD_LangIDDesc
+                0x2000001c        0x4 Src/usbd_descriptors.o
+                0x2000001c                USBD_LangIDDesc
  .data.USBD_FS_DeviceDesc
-                0x20000040       0x14 Src/usbd_desc.o
-                0x20000040                USBD_FS_DeviceDesc
+                0x20000020       0x14 Src/usbd_descriptors.o
+                0x20000020                USBD_FS_DeviceDesc
  .data.USBD_MSC_OtherSpeedCfgDesc
-                0x20000054       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x20000054                USBD_MSC_OtherSpeedCfgDesc
+                0x20000034       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x20000034                USBD_MSC_OtherSpeedCfgDesc
  .data.USBD_MSC_DeviceQualifierDesc
-                0x20000074        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x20000074                USBD_MSC_DeviceQualifierDesc
+                0x20000054        0xc Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x20000054                USBD_MSC_DeviceQualifierDesc
  .data.USBD_MSC_CfgHSDesc
-                0x20000080       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x20000080                USBD_MSC_CfgHSDesc
+                0x20000060       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x20000060                USBD_MSC_CfgHSDesc
  .data.USBD_MSC
-                0x200000a0       0x38 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x200000a0                USBD_MSC
+                0x20000080       0x3c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x20000080                USBD_MSC
  .data.USBD_MSC_CfgFSDesc
-                0x200000d8       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                0x200000d8                USBD_MSC_CfgFSDesc
+                0x200000bc       0x20 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x200000bc                USBD_MSC_CfgFSDesc
  .data.SystemCoreClock
-                0x200000f8        0x4 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
-                0x200000f8                SystemCoreClock
+                0x200000dc        0x4 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+                0x200000dc                SystemCoreClock
  .data.impure_data
-                0x200000fc       0x60 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
+                0x200000e0       0x60 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
  .data._impure_ptr
-                0x2000015c        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
-                0x2000015c                _impure_ptr
-                0x20000160                __data_end__ = .
+                0x20000140        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
+                0x20000140                _impure_ptr
+                0x20000144                __data_end__ = .
 
-.igot.plt       0x20000160        0x0 load address 0x08003ad8
- .igot.plt      0x00000000        0x0 Src/usbd_storage_if.o
+.igot.plt       0x20000144        0x0 load address 0x08006f3c
+ .igot.plt      0x00000000        0x0 Src/usbd_descriptors.o
 
-.bss            0x20000160      0x84c load address 0x08003ad8
-                0x20000160                . = ALIGN (0x4)
-                0x20000160                __bss_start__ = .
+.bss            0x20000148      0xd54 load address 0x08006f40
+                0x20000148                . = ALIGN (0x4)
+                0x20000148                __bss_start__ = .
  *(.bss*)
- .bss.cfgidx.8069
-                0x20000160        0x1 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
- *fill*         0x20000161        0x3 
- .bss.uwTick    0x20000164        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+ .bss.cfgidx.8045
+                0x20000148        0x1 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+ *fill*         0x20000149        0x3 
+ .bss.uwTick    0x2000014c        0x4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .bss.__malloc_sbrk_start
-                0x20000168        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
-                0x20000168                __malloc_sbrk_start
+                0x20000150        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
+                0x20000150                __malloc_sbrk_start
  .bss.__malloc_free_list
-                0x2000016c        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
-                0x2000016c                __malloc_free_list
+                0x20000154        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
+                0x20000154                __malloc_free_list
  .bss.heap_end.4079
-                0x20000170        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
+                0x20000158        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
  *(COMMON)
- COMMON         0x20000174      0x200 Src/usbd_desc.o
-                0x20000174                USBD_StrDesc
- COMMON         0x20000374      0x3b0 Src/usbd_conf.o
-                0x20000374                hpcd_USB_OTG_FS
- COMMON         0x20000724      0x224 Src/usb_device.o
-                0x20000724                hUsbDeviceFS
- COMMON         0x20000948       0x60 Src/main.o
-                0x20000948                hcrc
-                0x20000950                hspi1
- COMMON         0x200009a8        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
-                0x200009a8                errno
-                0x200009ac                . = ALIGN (0x4)
-                0x200009ac                __bss_end__ = .
+ COMMON         0x2000015c      0x200 Src/usbd_descriptors.o
+                0x2000015c                USBD_StrDesc
+ COMMON         0x2000035c      0x3b0 Src/usbd_config.o
+                0x2000035c                hpcd_USB_OTG_FS
+ COMMON         0x2000070c      0x224 Src/usb_device.o
+                0x2000070c                hUsbDeviceFS
+ COMMON         0x20000930       0xa0 Src/hal_msp.o
+                0x20000930                spiRxDmaHandle
+                0x20000980                spiTxDmaHandle
+ COMMON         0x200009d0      0x488 Src/downstream_spi.o
+                0x200009d0                SentCommand
+                0x200009d1                DownstreamInterfaceState
+                0x200009d4                DownstreamPacket1
+                0x20000be0                ReceivePacketCallback
+                0x20000be4                DownstreamPacket0
+                0x20000df0                CurrentWorkingPacket
+                0x20000df4                SentCommandClass
+                0x20000df8                NextTxPacket
+                0x20000dfc                hspi1
+                0x20000e54                PendingFreePacketCallback
+ COMMON         0x20000e58       0x24 Src/downstream_interface_msc.o
+                0x20000e58                ReadStreamPacket
+                0x20000e60                BlockStart
+                0x20000e68                GetCapacityCallback
+                0x20000e6c                BlockCount
+                0x20000e70                TestReadyCallback
+                0x20000e74                GetStreamDataCallback
+                0x20000e78                ByteCount
+ COMMON         0x20000e7c       0x14 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x20000e7c                SCSI_ProcessCmd_hmsc
+                0x20000e80                SCSI_ProcessCmd_params
+                0x20000e84                SCSI_ProcessCmd_lun
+                0x20000e88                SCSI_ProcessCmd_callback
+                0x20000e8c                SCSI_ProcessCmd_pdev
+ COMMON         0x20000e90        0x8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x20000e90                MSC_BOT_pdev
+                0x20000e94                MSC_BOT_hmsc
+ COMMON         0x20000e98        0x4 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
+                0x20000e98                errno
+                0x20000e9c                . = ALIGN (0x4)
+                0x20000e9c                __bss_end__ = .
 
-.heap           0x200009ac        0x0
-                0x200009ac                __HeapBase = .
-                0x200009ac                __end__ = .
-                0x200009ac                end = __end__
+.heap           0x20000e9c        0x0
+                0x20000e9c                __HeapBase = .
+                0x20000e9c                __end__ = .
+                0x20000e9c                end = __end__
  *(.heap*)
-                0x200009ac                __HeapLimit = .
+                0x20000e9c                __HeapLimit = .
 
-.stack_dummy    0x200009ac        0x0
+.stack_dummy    0x20000e9c        0x0
  *(.stack*)
                 0x2001c000                __StackTop = (ORIGIN (SRAM1) + 0x1c000)
                 0x2001c000                __StackLimit = (__StackTop - SIZEOF (.stack_dummy))
@@ -3553,342 +3803,355 @@ END GROUP
                 0x10000000                _eccmram = .
 OUTPUT(Upstream.elf elf32-littlearm)
 
-.debug_info     0x00000000    0x116de
- .debug_info    0x00000000      0x7a0 Src/usbd_storage_if.o
- .debug_info    0x000007a0      0x4a8 Src/usbd_desc.o
- .debug_info    0x00000c48     0x1852 Src/usbd_conf.o
- .debug_info    0x0000249a      0x6d1 Src/usb_device.o
- .debug_info    0x00002b6b      0xcd5 Src/main.o
- .debug_info    0x00003840      0x570 Src/interrupts.o
- .debug_info    0x00003db0      0xc4d Src/hal_msp.o
- .debug_info    0x000049fd      0x796 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
- .debug_info    0x00005193      0xe4a Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
- .debug_info    0x00005fdd      0xca9 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
- .debug_info    0x00006c86     0x12b1 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .debug_info    0x00007f37      0x11c Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
- .debug_info    0x00008053      0xddf Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
- .debug_info    0x00008e32      0xe7a Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
- .debug_info    0x00009cac     0x165c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
- .debug_info    0x0000b308     0x1652 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .debug_info    0x0000c95a      0xf4e Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
- .debug_info    0x0000d8a8      0x542 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
- .debug_info    0x0000ddea     0x155b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
- .debug_info    0x0000f345      0x6d1 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
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- .debug_line    0x00009cd5      0x6a1 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .debug_line    0x0000a376      0x63b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_line    0x0000a9b1      0x6e0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
- .debug_line    0x0000b091      0x6ea Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
- .debug_line    0x0000b77b      0x2f4 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
- .debug_line    0x0000ba6f       0xad Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
+.debug_line     0x00000000     0xe940
+ .debug_line    0x00000000      0x7e9 Src/usbd_descriptors.o
+ .debug_line    0x000007e9      0x8e2 Src/usbd_config.o
+ .debug_line    0x000010cb      0x787 Src/usb_device.o
+ .debug_line    0x00001852      0x720 Src/main.o
+ .debug_line    0x00001f72      0x59e Src/interrupts.o
+ .debug_line    0x00002510      0x5ae Src/hal_msp.o
+ .debug_line    0x00002abe      0x8be Src/downstream_spi.o
+ .debug_line    0x0000337c      0x7f4 Src/downstream_interface_msc.o
+ .debug_line    0x00003b70      0x762 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+ .debug_line    0x000042d2      0x8b0 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+ .debug_line    0x00004b82      0x8c4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+ .debug_line    0x00005446      0xa5e Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .debug_line    0x00005ea4      0x720 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+ .debug_line    0x000065c4      0x8c2 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+ .debug_line    0x00006e86      0x8a5 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+ .debug_line    0x0000772b      0xaea Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+ .debug_line    0x00008215      0xd60 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .debug_line    0x00008f75      0x87f Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+ .debug_line    0x000097f4      0x588 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+ .debug_line    0x00009d7c      0xa27 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+ .debug_line    0x0000a7a3      0x69b Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+ .debug_line    0x0000ae3e     0x299d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_line    0x0000d7db      0x6da Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+ .debug_line    0x0000deb5      0x6e4 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+ .debug_line    0x0000e599      0x2fa Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+ .debug_line    0x0000e893       0xad Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
 
-.debug_str      0x00000000    0x67edd
- .debug_str     0x00000000    0x643a9 Src/usbd_storage_if.o
-                              0x64752 (size before relaxing)
- .debug_str     0x000643a9      0x247 Src/usbd_desc.o
-                              0x63d9b (size before relaxing)
- .debug_str     0x000645f0      0xe0f Src/usbd_conf.o
-                              0x64c91 (size before relaxing)
- .debug_str     0x000653ff       0x85 Src/usb_device.o
-                              0x646d2 (size before relaxing)
- .debug_str     0x00065484      0x72c Src/main.o
-                              0x6439e (size before relaxing)
- .debug_str     0x00065bb0       0x55 Src/interrupts.o
-                              0x60655 (size before relaxing)
- .debug_str     0x00065c05       0x66 Src/hal_msp.o
-                              0x60d95 (size before relaxing)
- .debug_str     0x00065c6b       0xc9 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
-                              0x63f19 (size before relaxing)
- .debug_str     0x00065d34      0x14c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
-                              0x63fec (size before relaxing)
- .debug_str     0x00065e80       0x7b Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
-                              0x640bb (size before relaxing)
- .debug_str     0x00065efb      0x3b4 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
-                              0x649e0 (size before relaxing)
- .debug_str     0x000662af       0x49 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
-                              0x63ade (size before relaxing)
- .debug_str     0x000662f8       0xe4 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
-                              0x648e7 (size before relaxing)
- .debug_str     0x000663dc      0x16f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
-                              0x649dd (size before relaxing)
- .debug_str     0x0006654b      0x744 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
-                              0x60b49 (size before relaxing)
- .debug_str     0x00066c8f      0x3b5 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
-                              0x60a20 (size before relaxing)
- .debug_str     0x00067044      0x331 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
-                              0x607fb (size before relaxing)
- .debug_str     0x00067375       0x4a Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
-                              0x6051f (size before relaxing)
- .debug_str     0x000673bf      0x101 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
-                              0x60be4 (size before relaxing)
- .debug_str     0x000674c0      0x25d Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
-                              0x605b2 (size before relaxing)
- .debug_str     0x0006771d       0x98 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
-                              0x60374 (size before relaxing)
- .debug_str     0x000677b5      0x2c0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
-                              0x60a85 (size before relaxing)
- .debug_str     0x00067a75      0x3df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
-                              0x60846 (size before relaxing)
- .debug_str     0x00067e54       0x89 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
-                              0x39fbe (size before relaxing)
+.debug_str      0x00000000    0x688b4
+ .debug_str     0x00000000    0x641c4 Src/usbd_descriptors.o
+                              0x644dc (size before relaxing)
+ .debug_str     0x000641c4     0x106c Src/usbd_config.o
+                              0x64b2a (size before relaxing)
+ .debug_str     0x00065230       0x69 Src/usb_device.o
+                              0x645ae (size before relaxing)
+ .debug_str     0x00065299      0x448 Src/main.o
+                              0x63fe1 (size before relaxing)
+ .debug_str     0x000656e1      0x32b Src/interrupts.o
+                              0x6098c (size before relaxing)
+ .debug_str     0x00065a0c      0x1f9 Src/hal_msp.o
+                              0x60ec3 (size before relaxing)
+ .debug_str     0x00065c05      0x4a5 Src/downstream_spi.o
+                              0x6464c (size before relaxing)
+ .debug_str     0x000660aa      0x3c8 Src/downstream_interface_msc.o
+                              0x63f80 (size before relaxing)
+ .debug_str     0x00066472       0xc9 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                              0x63d8f (size before relaxing)
+ .debug_str     0x0006653b      0x14c Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                              0x63e62 (size before relaxing)
+ .debug_str     0x00066687       0x7b Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                              0x63f1e (size before relaxing)
+ .debug_str     0x00066702      0x50f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                              0x64dc9 (size before relaxing)
+ .debug_str     0x00066c11       0x49 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+                              0x6395a (size before relaxing)
+ .debug_str     0x00066c5a      0x14b Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                              0x64927 (size before relaxing)
+ .debug_str     0x00066da5      0x17f Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                              0x64a1a (size before relaxing)
+ .debug_str     0x00066f24      0x744 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                              0x609c5 (size before relaxing)
+ .debug_str     0x00067668      0x348 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                              0x6089c (size before relaxing)
+ .debug_str     0x000679b0      0x32a Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                              0x60677 (size before relaxing)
+ .debug_str     0x00067cda       0x4a Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+                              0x6039b (size before relaxing)
+ .debug_str     0x00067d24      0x101 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                              0x60a7c (size before relaxing)
+ .debug_str     0x00067e25      0x240 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+                              0x6042e (size before relaxing)
+ .debug_str     0x00068065      0x127 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+                              0x6045d (size before relaxing)
+ .debug_str     0x0006818c      0x2c0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                              0x60901 (size before relaxing)
+ .debug_str     0x0006844c      0x3df Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                              0x606c2 (size before relaxing)
+ .debug_str     0x0006882b       0x89 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+                              0x39fc1 (size before relaxing)
 
 .comment        0x00000000       0x70
- .comment       0x00000000       0x70 Src/usbd_storage_if.o
+ .comment       0x00000000       0x70 Src/usbd_descriptors.o
                                  0x71 (size before relaxing)
- .comment       0x00000000       0x71 Src/usbd_desc.o
- .comment       0x00000000       0x71 Src/usbd_conf.o
+ .comment       0x00000000       0x71 Src/usbd_config.o
  .comment       0x00000000       0x71 Src/usb_device.o
  .comment       0x00000000       0x71 Src/main.o
  .comment       0x00000000       0x71 Src/interrupts.o
  .comment       0x00000000       0x71 Src/hal_msp.o
+ .comment       0x00000000       0x71 Src/downstream_spi.o
+ .comment       0x00000000       0x71 Src/downstream_interface_msc.o
  .comment       0x00000000       0x71 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
  .comment       0x00000000       0x71 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .comment       0x00000000       0x71 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
@@ -3902,7 +4165,7 @@ OUTPUT(Upstream.elf elf32-littlearm)
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
+ .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .comment       0x00000000       0x71 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .comment       0x00000000       0x71 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
@@ -3910,97 +4173,100 @@ OUTPUT(Upstream.elf elf32-littlearm)
 .ARM.attributes
                 0x00000000       0x31
  .ARM.attributes
-                0x00000000       0x33 Src/usbd_storage_if.o
+                0x00000000       0x33 Src/usbd_descriptors.o
+ .ARM.attributes
+                0x00000033       0x33 Src/usbd_config.o
  .ARM.attributes
-                0x00000033       0x33 Src/usbd_desc.o
+                0x00000066       0x33 Src/usb_device.o
  .ARM.attributes
-                0x00000066       0x33 Src/usbd_conf.o
+                0x00000099       0x33 Src/main.o
  .ARM.attributes
-                0x00000099       0x33 Src/usb_device.o
+                0x000000cc       0x33 Src/interrupts.o
  .ARM.attributes
-                0x000000cc       0x33 Src/main.o
+                0x000000ff       0x33 Src/hal_msp.o
  .ARM.attributes
-                0x000000ff       0x33 Src/interrupts.o
+                0x00000132       0x33 Src/downstream_spi.o
  .ARM.attributes
-                0x00000132       0x33 Src/hal_msp.o
+                0x00000165       0x33 Src/downstream_interface_msc.o
  .ARM.attributes
-                0x00000165       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+                0x00000198       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
  .ARM.attributes
-                0x00000198       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+                0x000001cb       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
  .ARM.attributes
-                0x000001cb       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+                0x000001fe       0x33 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
  .ARM.attributes
-                0x000001fe       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+                0x00000231       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
  .ARM.attributes
-                0x00000231       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
+                0x00000264       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_data.o
  .ARM.attributes
-                0x00000264       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+                0x00000297       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
  .ARM.attributes
-                0x00000297       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+                0x000002ca       0x33 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
  .ARM.attributes
-                0x000002ca       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+                0x000002fd       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
  .ARM.attributes
-                0x000002fd       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+                0x00000330       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
  .ARM.attributes
-                0x00000330       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+                0x00000363       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
  .ARM.attributes
-                0x00000363       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+                0x00000396       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
  .ARM.attributes
-                0x00000396       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+                0x000003c9       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
  .ARM.attributes
-                0x000003c9       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+                0x000003fc       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
  .ARM.attributes
-                0x000003fc       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
+                0x0000042f       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
  .ARM.attributes
-                0x0000042f       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+                0x00000462       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
  .ARM.attributes
-                0x00000462       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+                0x00000495       0x33 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
  .ARM.attributes
-                0x00000495       0x33 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+                0x000004c8       0x33 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
  .ARM.attributes
-                0x000004c8       0x21 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
+                0x000004fb       0x21 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f405xx.o
  .ARM.attributes
-                0x000004e9       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
+                0x0000051c       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
  .ARM.attributes
-                0x00000516       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
+                0x00000549       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
  .ARM.attributes
-                0x00000543       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
+                0x00000576       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
  .ARM.attributes
-                0x00000570       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
+                0x000005a3       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
  .ARM.attributes
-                0x0000059d       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
+                0x000005d0       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-impure.o)
  .ARM.attributes
-                0x000005ca       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
+                0x000005fd       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
  .ARM.attributes
-                0x000005f7       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
+                0x0000062a       0x2d /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
 
-.debug_frame    0x00000000     0x1f8c
- .debug_frame   0x00000000       0x94 Src/usbd_storage_if.o
- .debug_frame   0x00000094       0xa8 Src/usbd_desc.o
- .debug_frame   0x0000013c      0x2bc Src/usbd_conf.o
- .debug_frame   0x000003f8       0x28 Src/usb_device.o
- .debug_frame   0x00000420       0x98 Src/main.o
- .debug_frame   0x000004b8       0x40 Src/interrupts.o
- .debug_frame   0x000004f8       0x80 Src/hal_msp.o
- .debug_frame   0x00000578       0xc0 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
- .debug_frame   0x00000638      0x178 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
- .debug_frame   0x000007b0      0x1c4 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
- .debug_frame   0x00000974      0x1b8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
- .debug_frame   0x00000b2c      0x108 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
- .debug_frame   0x00000c34       0xe0 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
- .debug_frame   0x00000d14      0x47c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
- .debug_frame   0x00001190      0x3d8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
- .debug_frame   0x00001568      0x13c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
- .debug_frame   0x000016a4       0x3c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
- .debug_frame   0x000016e0      0x314 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
- .debug_frame   0x000019f4       0xc0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
- .debug_frame   0x00001ab4       0xc8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_crc.o
- .debug_frame   0x00001b7c      0x128 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
- .debug_frame   0x00001ca4      0x188 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
- .debug_frame   0x00001e2c       0x30 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
- .debug_frame   0x00001e5c       0x30 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
- .debug_frame   0x00001e8c       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
- .debug_frame   0x00001eb8       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
- .debug_frame   0x00001ee4       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
- .debug_frame   0x00001f10       0x5c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
- .debug_frame   0x00001f6c       0x20 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
+.debug_frame    0x00000000     0x2290
+ .debug_frame   0x00000000       0xa8 Src/usbd_descriptors.o
+ .debug_frame   0x000000a8      0x2d4 Src/usbd_config.o
+ .debug_frame   0x0000037c       0x28 Src/usb_device.o
+ .debug_frame   0x000003a4       0x68 Src/main.o
+ .debug_frame   0x0000040c       0x88 Src/interrupts.o
+ .debug_frame   0x00000494       0x78 Src/hal_msp.o
+ .debug_frame   0x0000050c      0x138 Src/downstream_spi.o
+ .debug_frame   0x00000644      0x118 Src/downstream_interface_msc.o
+ .debug_frame   0x0000075c       0xc0 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.o
+ .debug_frame   0x0000081c      0x178 Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.o
+ .debug_frame   0x00000994      0x1dc Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.o
+ .debug_frame   0x00000b70      0x220 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.o
+ .debug_frame   0x00000d90      0x158 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.o
+ .debug_frame   0x00000ee8       0xe8 Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.o
+ .debug_frame   0x00000fd0      0x47c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.o
+ .debug_frame   0x0000144c      0x3d8 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.o
+ .debug_frame   0x00001824      0x13c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.o
+ .debug_frame   0x00001960       0x3c Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.o
+ .debug_frame   0x0000199c      0x314 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.o
+ .debug_frame   0x00001cb0       0xc0 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.o
+ .debug_frame   0x00001d70      0x110 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.o
+ .debug_frame   0x00001e80      0x128 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.o
+ .debug_frame   0x00001fa8      0x188 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.o
+ .debug_frame   0x00002130       0x30 Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.o
+ .debug_frame   0x00002160       0x30 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-malloc.o)
+ .debug_frame   0x00002190       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-freer.o)
+ .debug_frame   0x000021bc       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-nano-mallocr.o)
+ .debug_frame   0x000021e8       0x2c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-sbrkr.o)
+ .debug_frame   0x00002214       0x5c /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libg_nano.a(lib_a-reent.o)
+ .debug_frame   0x00002270       0x20 /usr/local/gcc-arm-none-eabi-4_9-2014q4/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7-m/libnosys.a(sbrk.o)
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal.h b/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal.h
index 390b3a8..efbe1cb 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal.h
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal.h
@@ -45,7 +45,7 @@
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include <hal_conf.h>
+#include <hal_config.h>
 
 /** @addtogroup STM32F4xx_HAL_Driver
   * @{
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_pcd.h b/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_pcd.h
index 61cc641..9f7a2ce 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_pcd.h
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_pcd.h
@@ -233,6 +233,8 @@ void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
 void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
 void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd);
 void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd);
+void HAL_PCD_BufferFreedCallBack(PCD_HandleTypeDef *hpcd);
+
 /**
   * @}
   */
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c
index 9856c35..3051d7c 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c
@@ -266,7 +266,7 @@ __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
 
   /*Configure the SysTick IRQ priority */
-  //*** Leave Systick interrupt at lowest priority
+  //*** HAL_MspInit() will set our desired priority
   //HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority ,0);
 
   /* Return function status */
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c
index 66657b1..a965390 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c
@@ -259,6 +259,7 @@ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma)
 
   /* Initialize the DMA state */
   hdma->State = HAL_DMA_STATE_READY;
+  __HAL_UNLOCK(hdma);
 
   return HAL_OK;
 }
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.c b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.c
index 8dec3a2..2e4e2ac 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.c
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd.c
@@ -191,6 +191,7 @@ HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
  USB_DevInit(hpcd->Instance, hpcd->Init);
  
  hpcd->State= HAL_PCD_STATE_READY;
+ __HAL_UNLOCK(hpcd);
  
  USB_DevDisconnect (hpcd->Instance);  
  return HAL_OK;
@@ -1128,7 +1129,7 @@ static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t
   
   len32b = (len + 3) / 4;
  
-  while  ( (USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) > len32b &&
+  while  ( (USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) > len32b &&	/* SHOULD THIS BE ">=" ??????? */
           ep->xfer_count < ep->xfer_len &&
             ep->xfer_len != 0)
   {
@@ -1147,11 +1148,12 @@ static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t
     ep->xfer_count += len;
   }
   
-  if(len <= 0)
-  {
+  if(len <= 0)		//SHOULD THIS BE "if (ep->xfer_count >= ep->xfer_len)" ???????
+  {					//or just move USB_WritePacket up below the while check???????
     fifoemptymsk = 0x1 << epnum;
     USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
     
+    HAL_PCD_BufferFreedCallBack(hpcd);
   }
   
   return HAL_OK;  
diff --git a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
index 4397ab1..b9ef84d 100755
--- a/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
+++ b/Upstream/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c
@@ -222,6 +222,7 @@ HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi)
 
   hspi->ErrorCode = HAL_SPI_ERROR_NONE;
   hspi->State = HAL_SPI_STATE_READY;
+  __HAL_UNLOCK(hspi);
   
   return HAL_OK;
 }
diff --git a/Upstream/Inc/board_config.h b/Upstream/Inc/board_config.h
index e4c8111..2484c5a 100644
--- a/Upstream/Inc/board_config.h
+++ b/Upstream/Inc/board_config.h
@@ -9,6 +9,8 @@
 #define INC_BOARD_CONFIG_H_
 
 
+#define BSRR_SHIFT_HIGH			0
+#define BSRR_SHIFT_LOW			16
 
 #define PA_JTMS					GPIO_PIN_13
 #define PA_JTCK					GPIO_PIN_14
@@ -21,10 +23,17 @@
 
 #define STAT_LED_PIN			GPIO_PIN_12
 #define STAT_LED_PORT			GPIOC
-#define STAT_LED_BSRR_OFF		(STAT_LED_PIN)
-#define STAT_LED_BSRR_ON		(STAT_LED_PIN << 16)
+#define STAT_LED_ON				STAT_LED_PORT->BSRR = (STAT_LED_PIN << BSRR_SHIFT_LOW)	//Stat LED is active-low
+#define STAT_LED_OFF			STAT_LED_PORT->BSRR = (STAT_LED_PIN << BSRR_SHIFT_HIGH)
 
+#define SPI1_NSS_PIN			GPIO_PIN_4
+#define SPI1_NSS_PORT			GPIOA
+#define SPI1_NSS_ASSERT			SPI1_NSS_PORT->BSRR = (SPI1_NSS_PIN << BSRR_SHIFT_LOW)
+#define SPI1_NSS_DEASSERT		SPI1_NSS_PORT->BSRR = (SPI1_NSS_PIN << BSRR_SHIFT_HIGH)
 
+#define DOWNSTREAM_TX_OK_PIN	GPIO_PIN_3
+#define DOWNSTREAM_TX_OK_PORT	GPIOA
+#define DOWNSTREAM_TX_OK_ACTIVE	(!(DOWNSTREAM_TX_OK_PORT->IDR & DOWNSTREAM_TX_OK_PIN))
 
 
 #endif /* INC_BOARD_CONFIG_H_ */
diff --git a/Upstream/Inc/downstream_interface_def.h b/Upstream/Inc/downstream_interface_def.h
new file mode 100644
index 0000000..28bb61d
--- /dev/null
+++ b/Upstream/Inc/downstream_interface_def.h
@@ -0,0 +1,39 @@
+/*
+ * interface_def.h
+ *
+ *  Created on: 22/06/2015
+ *      Author: Robert Fisk
+ */
+
+#ifndef INC_DOWNSTREAM_INTERFACE_DEF_H_
+#define INC_DOWNSTREAM_INTERFACE_DEF_H_
+
+
+//Upstream only supports one LUN.
+//Downstream may support > 1 LUN and only report the first active one to upstream.
+#define UPSTREAM_LUN_NBR			1
+#define COMMAND_CLASS_DATA_FLAG		0x80
+#define COMMAND_CLASS_MASK			((uint8_t)(~COMMAND_CLASS_DATA_FLAG))
+
+
+typedef enum
+{
+	COMMAND_CLASS_INTERFACE		= 0,
+	COMMAND_CLASS_MASS_STORAGE	= 1,
+	COMMAND_CLASS_MAX 			= 2,
+}
+InterfaceCommandClassTypeDef;
+
+
+typedef enum
+{
+	COMMAND_MSC_TEST_UNIT_READY			= 0,	//Returns HAL_StatusTypeDef result
+	COMMAND_MSC_GET_CAPACITY			= 2,	//Returns uint32_t blk_nbr, uint32_t blk_size
+	COMMAND_MSC_BEGIN_READ				= 3,	//Returns HAL_StatusTypeDef result, then data stream
+	COMMAND_MSC_BEGIN_WRITE				= 4,	//Returns HAL_OK, HAL_ERROR if medium not present, HAL_BUSY if write-protected result, then waits for data stream
+	COMMAND_MSC_MAX						= 5,
+}
+InterfaceCommandMscTypeDef;
+
+
+#endif /* INC_DOWNSTREAM_INTERFACE_DEF_H_ */
diff --git a/Upstream/Inc/downstream_interface_msc.h b/Upstream/Inc/downstream_interface_msc.h
new file mode 100644
index 0000000..1bcafd2
--- /dev/null
+++ b/Upstream/Inc/downstream_interface_msc.h
@@ -0,0 +1,38 @@
+/*
+ * downstream_interface_msc.h
+ *
+ *  Created on: 4/07/2015
+ *      Author: Robert Fisk
+ */
+
+#ifndef INC_DOWNSTREAM_INTERFACE_MSC_H_
+#define INC_DOWNSTREAM_INTERFACE_MSC_H_
+
+
+#include "downstream_spi.h"
+
+
+typedef void (*DownstreamInterfaceMSCCallbackTypeDef)(HAL_StatusTypeDef result);
+typedef void (*DownstreamInterfaceMSCCallbackPacketTypeDef)(HAL_StatusTypeDef result,
+															DownstreamPacketTypeDef* downstreamPacket);
+typedef void (*DownstreamInterfaceMSCCallbackUintPacketTypeDef)(HAL_StatusTypeDef result,
+																uint32_t result_uint[],
+																DownstreamPacketTypeDef* downstreamPacket);
+
+
+HAL_StatusTypeDef DownstreamInterface_TestReady(DownstreamInterfaceMSCCallbackTypeDef callback);
+HAL_StatusTypeDef DownstreamInterface_GetCapacity(DownstreamInterfaceMSCCallbackUintPacketTypeDef callback);
+HAL_StatusTypeDef DownstreamInterface_BeginRead(DownstreamInterfaceMSCCallbackTypeDef callback,
+												uint64_t readBlockStart,
+												uint32_t readBlockCount,
+												uint32_t readByteCount);
+HAL_StatusTypeDef DownstreamInterface_GetStreamDataPacket(DownstreamInterfaceMSCCallbackPacketTypeDef callback);
+HAL_StatusTypeDef DownstreamInterface_BeginWrite(DownstreamInterfaceMSCCallbackTypeDef callback,
+												 uint64_t readBlockStart,
+												 uint32_t readBlockCount);
+HAL_StatusTypeDef DownstreamInterface_PutStreamDataPacket(DownstreamPacketTypeDef* packetToSend,
+														  uint32_t dataLength);
+
+
+
+#endif /* INC_DOWNSTREAM_INTERFACE_MSC_H_ */
diff --git a/Upstream/Inc/downstream_spi.h b/Upstream/Inc/downstream_spi.h
new file mode 100644
index 0000000..af664f3
--- /dev/null
+++ b/Upstream/Inc/downstream_spi.h
@@ -0,0 +1,89 @@
+/*
+ * downstream_spi.h
+ *
+ *  Created on: 21/06/2015
+ *      Author: Robert Fisk
+ */
+
+#ifndef INC_DOWNSTREAM_SPI_H_
+#define INC_DOWNSTREAM_SPI_H_
+
+
+#include "usbd_def.h"
+
+
+#define DOWNSTREAM_PACKET_HEADER_LEN	(2)			//Min length = CommandClass & Command bytes
+#define DOWNSTREAM_PACKET_LEN			(DOWNSTREAM_PACKET_HEADER_LEN + USB_HS_MAX_PACKET_SIZE)
+#define DOWNSTREAM_PACKET_LEN_MIN		(DOWNSTREAM_PACKET_HEADER_LEN)
+
+
+#define SPI_INTERFACE_FREAKOUT_VOID								\
+	do {														\
+		while (1);												\
+		/*DownstreamInterfaceState = INTERFACE_STATE_ERROR;*/	\
+		/*return;*/												\
+} while (0);
+
+#define SPI_INTERFACE_FREAKOUT_HAL_ERROR						\
+	do {														\
+		while (1);												\
+		/*DownstreamInterfaceState = INTERFACE_STATE_ERROR;*/	\
+		/*return HAL_ERROR;*/									\
+} while (0);
+
+
+
+typedef enum
+{
+	INTERFACE_STATE_RESET				= 0,
+	INTERFACE_STATE_WAITING_CLIENT		= 1,
+	INTERFACE_STATE_IDLE				= 2,
+	INTERFACE_STATE_TX_SIZE_WAIT		= 3,
+	INTERFACE_STATE_TX_SIZE				= 4,
+	INTERFACE_STATE_TX_PACKET_WAIT		= 5,
+	INTERFACE_STATE_TX_PACKET			= 6,
+	INTERFACE_STATE_RX_SIZE_WAIT		= 7,
+	INTERFACE_STATE_RX_SIZE				= 8,
+	INTERFACE_STATE_RX_PACKET_WAIT		= 9,
+	INTERFACE_STATE_RX_PACKET			= 10,
+	INTERFACE_STATE_ERROR				= 11
+} InterfaceStateTypeDef;
+
+
+typedef enum
+{
+	NOT_BUSY 		= 0,
+	BUSY			= 1
+} PacketBusyTypeDef;
+
+
+typedef struct
+{
+	PacketBusyTypeDef	Busy;						//Everything after Busy should be word-aligned
+	uint16_t			Length __ALIGN_END;			//Packet length includes CommandClass, Command, and Data
+	uint8_t				CommandClass;
+	uint8_t				Command;
+	uint8_t				Data[USB_HS_MAX_PACKET_SIZE];	//Should (must?) be word-aligned, for USB copy routine
+	uint8_t				RxCrc;
+}
+DownstreamPacketTypeDef;
+
+
+
+typedef void (*FreePacketCallbackTypeDef)(DownstreamPacketTypeDef* freePacket);
+typedef void (*SpiPacketReceivedCallbackTypeDef)(DownstreamPacketTypeDef* replyPacket);
+
+
+void Downstream_InitInterface(void);
+HAL_StatusTypeDef Downstream_GetFreePacket(FreePacketCallbackTypeDef callback);
+DownstreamPacketTypeDef* Downstream_GetFreePacketImmediately(void);
+void Downstream_ReleasePacket(DownstreamPacketTypeDef* packetToRelease);
+HAL_StatusTypeDef Downstream_SendPacket(DownstreamPacketTypeDef* packetToWrite);
+HAL_StatusTypeDef Downstream_GetPacket(SpiPacketReceivedCallbackTypeDef callback);
+void Downstream_TxOkInterrupt(void);
+void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi);
+void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi);
+void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi);
+
+
+#endif /* INC_DOWNSTREAM_SPI_H_ */
diff --git a/Upstream/Inc/hal_conf.h b/Upstream/Inc/hal_config.h
similarity index 97%
rename from Upstream/Inc/hal_conf.h
rename to Upstream/Inc/hal_config.h
index 0b1b803..d87080a 100755
--- a/Upstream/Inc/hal_conf.h
+++ b/Upstream/Inc/hal_config.h
@@ -50,7 +50,7 @@
 #define HAL_MODULE_ENABLED  
 //#define HAL_ADC_MODULE_ENABLED   
 //#define HAL_CAN_MODULE_ENABLED   
-#define HAL_CRC_MODULE_ENABLED
+//#define HAL_CRC_MODULE_ENABLED
 //#define HAL_CRYP_MODULE_ENABLED   
 //#define HAL_DAC_MODULE_ENABLED   
 //#define HAL_DCMI_MODULE_ENABLED   
diff --git a/Upstream/Inc/interrupts.h b/Upstream/Inc/interrupts.h
index 8d55dc4..a937955 100755
--- a/Upstream/Inc/interrupts.h
+++ b/Upstream/Inc/interrupts.h
@@ -47,8 +47,11 @@
 /*   The preemption priority for the IRQn channel.
 *         This parameter can be a value between 0 and 15
 *         A lower priority value indicates a higher priority. */
+
 #define INT_PRIORITY_SYSTICK	2
-#define INT_PRIORITY_OTG_FS		10
+#define INT_PRIORITY_SPI_DMA	10			//SPI interacts heavily with USB_OTG,
+#define INT_PRIORITY_OTG_FS		10			//so set them at the same priority.
+
 
 /* Exported macro ------------------------------------------------------------*/
 /* Exported functions ------------------------------------------------------- */
diff --git a/Upstream/Inc/stm32f4xx_hal_conf.h b/Upstream/Inc/stm32f4xx_hal_conf.h
deleted file mode 100755
index 0b1b803..0000000
--- a/Upstream/Inc/stm32f4xx_hal_conf.h
+++ /dev/null
@@ -1,401 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    stm32f4xx_hal_conf.h
-  * @brief   HAL configuration file.             
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  *   1. Redistributions of source code must retain the above copyright notice,
-  *      this list of conditions and the following disclaimer.
-  *   2. Redistributions in binary form must reproduce the above copyright notice,
-  *      this list of conditions and the following disclaimer in the documentation
-  *      and/or other materials provided with the distribution.
-  *   3. Neither the name of STMicroelectronics nor the names of its contributors
-  *      may be used to endorse or promote products derived from this software
-  *      without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  *
-  ******************************************************************************
-  */ 
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-#ifndef __STM32F4xx_HAL_CONF_H
-#define __STM32F4xx_HAL_CONF_H
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-/* Exported types ------------------------------------------------------------*/
-/* Exported constants --------------------------------------------------------*/
-
-/* ########################## Module Selection ############################## */
-/**
-  * @brief This is the list of modules to be used in the HAL driver 
-  */
-#define HAL_MODULE_ENABLED  
-//#define HAL_ADC_MODULE_ENABLED   
-//#define HAL_CAN_MODULE_ENABLED   
-#define HAL_CRC_MODULE_ENABLED
-//#define HAL_CRYP_MODULE_ENABLED   
-//#define HAL_DAC_MODULE_ENABLED   
-//#define HAL_DCMI_MODULE_ENABLED   
-//#define HAL_DMA2D_MODULE_ENABLED   
-//#define HAL_ETH_MODULE_ENABLED   
-//#define HAL_NAND_MODULE_ENABLED   
-//#define HAL_NOR_MODULE_ENABLED   
-//#define HAL_PCCARD_MODULE_ENABLED   
-//#define HAL_SRAM_MODULE_ENABLED   
-//#define HAL_SDRAM_MODULE_ENABLED   
-//#define HAL_HASH_MODULE_ENABLED   
-//#define HAL_I2C_MODULE_ENABLED   
-//#define HAL_I2S_MODULE_ENABLED   
-//#define HAL_IWDG_MODULE_ENABLED   
-//#define HAL_LTDC_MODULE_ENABLED   
-//#define HAL_RNG_MODULE_ENABLED   
-//#define HAL_RTC_MODULE_ENABLED   
-//#define HAL_SAI_MODULE_ENABLED   
-//#define HAL_SD_MODULE_ENABLED   
-#define HAL_SPI_MODULE_ENABLED
-//#define HAL_TIM_MODULE_ENABLED   
-//#define HAL_UART_MODULE_ENABLED   
-//#define HAL_USART_MODULE_ENABLED   
-//#define HAL_IRDA_MODULE_ENABLED   
-//#define HAL_SMARTCARD_MODULE_ENABLED   
-//#define HAL_WWDG_MODULE_ENABLED   
-#define HAL_PCD_MODULE_ENABLED
-//#define HAL_HCD_MODULE_ENABLED   
-#define HAL_GPIO_MODULE_ENABLED
-#define HAL_DMA_MODULE_ENABLED
-#define HAL_RCC_MODULE_ENABLED
-#define HAL_FLASH_MODULE_ENABLED
-#define HAL_PWR_MODULE_ENABLED
-#define HAL_CORTEX_MODULE_ENABLED
-
-/* ########################## HSE/HSI Values adaptation ##################### */
-/**
-  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
-  *        This value is used by the RCC HAL module to compute the system frequency
-  *        (when HSE is used as system clock source, directly or through the PLL).  
-  */
-#if !defined  (HSE_VALUE) 
-  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
-#endif /* HSE_VALUE */
-
-#if !defined  (HSE_STARTUP_TIMEOUT)
-  #define HSE_STARTUP_TIMEOUT    ((uint32_t)500)   /*!< Time out for HSE start up, in ms */
-#endif /* HSE_STARTUP_TIMEOUT */
-
-/**
-  * @brief Internal High Speed oscillator (HSI) value.
-  *        This value is used by the RCC HAL module to compute the system frequency
-  *        (when HSI is used as system clock source, directly or through the PLL). 
-  */
-#if !defined  (HSI_VALUE)
-  #define HSI_VALUE    ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
-#endif /* HSI_VALUE */
-
-/**
-  * @brief Internal Low Speed oscillator (LSI) value.
-  */
-#if !defined  (LSI_VALUE) 
- #define LSI_VALUE  ((uint32_t)32000)    
-#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz
-                                             The real value may vary depending on the variations
-                                             in voltage and temperature.  */
-/**
-  * @brief External Low Speed oscillator (LSE) value.
-  */
-#if !defined  (LSE_VALUE)
- #define LSE_VALUE  ((uint32_t)32768)    /*!< Value of the External Low Speed oscillator in Hz */
-#endif /* LSE_VALUE */
-
-/**
-  * @brief External clock source for I2S peripheral
-  *        This value is used by the I2S HAL module to compute the I2S clock source 
-  *        frequency, this source is inserted directly through I2S_CKIN pad. 
-  */
-#if !defined  (EXTERNAL_CLOCK_VALUE)
-  #define EXTERNAL_CLOCK_VALUE    ((uint32_t)12288000) /*!< Value of the External audio frequency in Hz*/
-#endif /* EXTERNAL_CLOCK_VALUE */
-
-/* Tip: To avoid modifying this file each time you need to use different HSE,
-   ===  you can define the HSE value in your toolchain compiler preprocessor. */
-
-/* ########################### System Configuration ######################### */
-/**
-  * @brief This is the HAL system configuration section
-  */     
-  
-#define  VDD_VALUE					  ((uint32_t)3300) /*!< Value of VDD in mv */           
-#define  TICK_INT_PRIORITY            ((uint32_t)0)   /*!< tick interrupt priority */            
-#define  USE_RTOS                     0     
-#define  PREFETCH_ENABLE              1
-#define  INSTRUCTION_CACHE_ENABLE     1
-#define  DATA_CACHE_ENABLE            1
-
-/* ########################## Assert Selection ############################## */
-/**
-  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
-  *        HAL drivers code
-  */
-/* #define USE_FULL_ASSERT    1 */
-
-/* ################## Ethernet peripheral configuration ##################### */
-
-/* Section 1 : Ethernet peripheral configuration */
-
-/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
-#define MAC_ADDR0   2
-#define MAC_ADDR1   0
-#define MAC_ADDR2   0
-#define MAC_ADDR3   0
-#define MAC_ADDR4   0
-#define MAC_ADDR5   0
-
-/* Definition of the Ethernet driver buffers size and count */   
-#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
-#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
-#define ETH_RXBUFNB                    ((uint32_t)4)       /* 4 Rx buffers of size ETH_RX_BUF_SIZE  */
-#define ETH_TXBUFNB                    ((uint32_t)4)       /* 4 Tx buffers of size ETH_TX_BUF_SIZE  */
-
-/* Section 2: PHY configuration section */
-
-/* DP83848 PHY Address*/ 
-#define DP83848_PHY_ADDRESS             0x01
-/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/ 
-#define PHY_RESET_DELAY                 ((uint32_t)0x000000FF)
-/* PHY Configuration delay */
-#define PHY_CONFIG_DELAY                ((uint32_t)0x00000FFF)
-
-#define PHY_READ_TO                     ((uint32_t)0x0000FFFF)
-#define PHY_WRITE_TO                    ((uint32_t)0x0000FFFF)
-
-/* Section 3: Common PHY Registers */
-
-#define PHY_BCR                         ((uint16_t)0x00)    /*!< Transceiver Basic Control Register   */
-#define PHY_BSR                         ((uint16_t)0x01)    /*!< Transceiver Basic Status Register    */
- 
-#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
-#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
-#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
-#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
-#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
-#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
-#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
-#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
-#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
-#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
-
-#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
-#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
-#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
-  
-/* Section 4: Extended PHY Registers */
-
-#define PHY_SR                          ((uint16_t)0x10)    /*!< PHY status register Offset                      */
-#define PHY_MICR                        ((uint16_t)0x11)    /*!< MII Interrupt Control Register                  */
-#define PHY_MISR                        ((uint16_t)0x12)    /*!< MII Interrupt Status and Misc. Control Register */
- 
-#define PHY_LINK_STATUS                 ((uint16_t)0x0001)  /*!< PHY Link mask                                   */
-#define PHY_SPEED_STATUS                ((uint16_t)0x0002)  /*!< PHY Speed mask                                  */
-#define PHY_DUPLEX_STATUS               ((uint16_t)0x0004)  /*!< PHY Duplex mask                                 */
-
-#define PHY_MICR_INT_EN                 ((uint16_t)0x0002)  /*!< PHY Enable interrupts                           */
-#define PHY_MICR_INT_OE                 ((uint16_t)0x0001)  /*!< PHY Enable output interrupt events              */
-
-#define PHY_MISR_LINK_INT_EN            ((uint16_t)0x0020)  /*!< Enable Interrupt on change of link status       */
-#define PHY_LINK_INTERRUPT              ((uint16_t)0x2000)  /*!< PHY link status interrupt mask                  */
-
-/* Includes ------------------------------------------------------------------*/
-/**
-  * @brief Include module's header file 
-  */
-
-#ifdef HAL_RCC_MODULE_ENABLED
-  #include "stm32f4xx_hal_rcc.h"
-#endif /* HAL_RCC_MODULE_ENABLED */
-
-#ifdef HAL_GPIO_MODULE_ENABLED
-  #include "stm32f4xx_hal_gpio.h"
-#endif /* HAL_GPIO_MODULE_ENABLED */
-
-#ifdef HAL_DMA_MODULE_ENABLED
-  #include "stm32f4xx_hal_dma.h"
-#endif /* HAL_DMA_MODULE_ENABLED */
-   
-#ifdef HAL_CORTEX_MODULE_ENABLED
-  #include "stm32f4xx_hal_cortex.h"
-#endif /* HAL_CORTEX_MODULE_ENABLED */
-
-#ifdef HAL_ADC_MODULE_ENABLED
-  #include "stm32f4xx_hal_adc.h"
-#endif /* HAL_ADC_MODULE_ENABLED */
-
-#ifdef HAL_CAN_MODULE_ENABLED
-  #include "stm32f4xx_hal_can.h"
-#endif /* HAL_CAN_MODULE_ENABLED */
-
-#ifdef HAL_CRC_MODULE_ENABLED
-  #include "stm32f4xx_hal_crc.h"
-#endif /* HAL_CRC_MODULE_ENABLED */
-
-#ifdef HAL_CRYP_MODULE_ENABLED
-  #include "stm32f4xx_hal_cryp.h" 
-#endif /* HAL_CRYP_MODULE_ENABLED */
-
-#ifdef HAL_DMA2D_MODULE_ENABLED
-  #include "stm32f4xx_hal_dma2d.h"
-#endif /* HAL_DMA2D_MODULE_ENABLED */
-
-#ifdef HAL_DAC_MODULE_ENABLED
-  #include "stm32f4xx_hal_dac.h"
-#endif /* HAL_DAC_MODULE_ENABLED */
-
-#ifdef HAL_DCMI_MODULE_ENABLED
-  #include "stm32f4xx_hal_dcmi.h"
-#endif /* HAL_DCMI_MODULE_ENABLED */
-
-#ifdef HAL_ETH_MODULE_ENABLED
-  #include "stm32f4xx_hal_eth.h"
-#endif /* HAL_ETH_MODULE_ENABLED */
-
-#ifdef HAL_FLASH_MODULE_ENABLED
-  #include "stm32f4xx_hal_flash.h"
-#endif /* HAL_FLASH_MODULE_ENABLED */
- 
-#ifdef HAL_SRAM_MODULE_ENABLED
-  #include "stm32f4xx_hal_sram.h"
-#endif /* HAL_SRAM_MODULE_ENABLED */
-
-#ifdef HAL_NOR_MODULE_ENABLED
-  #include "stm32f4xx_hal_nor.h"
-#endif /* HAL_NOR_MODULE_ENABLED */
-
-#ifdef HAL_NAND_MODULE_ENABLED
-  #include "stm32f4xx_hal_nand.h"
-#endif /* HAL_NAND_MODULE_ENABLED */
-
-#ifdef HAL_PCCARD_MODULE_ENABLED
-  #include "stm32f4xx_hal_pccard.h"
-#endif /* HAL_PCCARD_MODULE_ENABLED */ 
-  
-#ifdef HAL_SDRAM_MODULE_ENABLED
-  #include "stm32f4xx_hal_sdram.h"
-#endif /* HAL_SDRAM_MODULE_ENABLED */      
-
-#ifdef HAL_HASH_MODULE_ENABLED
- #include "stm32f4xx_hal_hash.h"
-#endif /* HAL_HASH_MODULE_ENABLED */
-
-#ifdef HAL_I2C_MODULE_ENABLED
- #include "stm32f4xx_hal_i2c.h"
-#endif /* HAL_I2C_MODULE_ENABLED */
-
-#ifdef HAL_I2S_MODULE_ENABLED
- #include "stm32f4xx_hal_i2s.h"
-#endif /* HAL_I2S_MODULE_ENABLED */
-
-#ifdef HAL_IWDG_MODULE_ENABLED
- #include "stm32f4xx_hal_iwdg.h"
-#endif /* HAL_IWDG_MODULE_ENABLED */
-
-#ifdef HAL_LTDC_MODULE_ENABLED
- #include "stm32f4xx_hal_ltdc.h"
-#endif /* HAL_LTDC_MODULE_ENABLED */
-
-#ifdef HAL_PWR_MODULE_ENABLED
- #include "stm32f4xx_hal_pwr.h"
-#endif /* HAL_PWR_MODULE_ENABLED */
-
-#ifdef HAL_RNG_MODULE_ENABLED
- #include "stm32f4xx_hal_rng.h"
-#endif /* HAL_RNG_MODULE_ENABLED */
-
-#ifdef HAL_RTC_MODULE_ENABLED
- #include "stm32f4xx_hal_rtc.h"
-#endif /* HAL_RTC_MODULE_ENABLED */
-
-#ifdef HAL_SAI_MODULE_ENABLED
- #include "stm32f4xx_hal_sai.h"
-#endif /* HAL_SAI_MODULE_ENABLED */
-
-#ifdef HAL_SD_MODULE_ENABLED
- #include "stm32f4xx_hal_sd.h"
-#endif /* HAL_SD_MODULE_ENABLED */
-
-#ifdef HAL_SPI_MODULE_ENABLED
- #include "stm32f4xx_hal_spi.h"
-#endif /* HAL_SPI_MODULE_ENABLED */
-
-#ifdef HAL_TIM_MODULE_ENABLED
- #include "stm32f4xx_hal_tim.h"
-#endif /* HAL_TIM_MODULE_ENABLED */
-
-#ifdef HAL_UART_MODULE_ENABLED
- #include "stm32f4xx_hal_uart.h"
-#endif /* HAL_UART_MODULE_ENABLED */
-
-#ifdef HAL_USART_MODULE_ENABLED
- #include "stm32f4xx_hal_usart.h"
-#endif /* HAL_USART_MODULE_ENABLED */
-
-#ifdef HAL_IRDA_MODULE_ENABLED
- #include "stm32f4xx_hal_irda.h"
-#endif /* HAL_IRDA_MODULE_ENABLED */
-
-#ifdef HAL_SMARTCARD_MODULE_ENABLED
- #include "stm32f4xx_hal_smartcard.h"
-#endif /* HAL_SMARTCARD_MODULE_ENABLED */
-
-#ifdef HAL_WWDG_MODULE_ENABLED
- #include "stm32f4xx_hal_wwdg.h"
-#endif /* HAL_WWDG_MODULE_ENABLED */
-
-#ifdef HAL_PCD_MODULE_ENABLED
- #include "stm32f4xx_hal_pcd.h"
-#endif /* HAL_PCD_MODULE_ENABLED */
-
-#ifdef HAL_HCD_MODULE_ENABLED
- #include "stm32f4xx_hal_hcd.h"
-#endif /* HAL_HCD_MODULE_ENABLED */
-   
-/* Exported macro ------------------------------------------------------------*/
-#ifdef  USE_FULL_ASSERT
-/**
-  * @brief  The assert_param macro is used for function's parameters check.
-  * @param  expr: If expr is false, it calls assert_failed function
-  *         which reports the name of the source file and the source
-  *         line number of the call that failed. 
-  *         If expr is true, it returns no value.
-  * @retval None
-  */
-  #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
-/* Exported functions ------------------------------------------------------- */
-  void assert_failed(uint8_t* file, uint32_t line);
-#else
-  #define assert_param(expr) ((void)0)
-#endif /* USE_FULL_ASSERT */    
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __STM32F4xx_HAL_CONF_H */
- 
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Upstream/Inc/stm32f4xx_it.h b/Upstream/Inc/stm32f4xx_it.h
deleted file mode 100755
index 814a90b..0000000
--- a/Upstream/Inc/stm32f4xx_it.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    stm32f4xx_it.h
-  * @date    03/02/2015 20:27:00
-  * @brief   This file contains the headers of the interrupt handlers.
-  ******************************************************************************
-  *
-  * COPYRIGHT(c) 2015 STMicroelectronics
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  *   1. Redistributions of source code must retain the above copyright notice,
-  *      this list of conditions and the following disclaimer.
-  *   2. Redistributions in binary form must reproduce the above copyright notice,
-  *      this list of conditions and the following disclaimer in the documentation
-  *      and/or other materials provided with the distribution.
-  *   3. Neither the name of STMicroelectronics nor the names of its contributors
-  *      may be used to endorse or promote products derived from this software
-  *      without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  *
-  ******************************************************************************
-  */
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-#ifndef __STM32F4xx_IT_H
-#define __STM32F4xx_IT_H
-
-#ifdef __cplusplus
- extern "C" {
-#endif 
-
-/* Includes ------------------------------------------------------------------*/
-/* Exported types ------------------------------------------------------------*/
-/* Exported constants --------------------------------------------------------*/
-/* Exported macro ------------------------------------------------------------*/
-/* Exported functions ------------------------------------------------------- */
-
-void OTG_FS_IRQHandler(void);
-void SysTick_Handler(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __STM32F4xx_IT_H */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Upstream/Inc/usb_device.h b/Upstream/Inc/usb_device.h
index 9e144e3..e11adfb 100755
--- a/Upstream/Inc/usb_device.h
+++ b/Upstream/Inc/usb_device.h
@@ -46,7 +46,7 @@
 extern USBD_HandleTypeDef hUsbDeviceFS;
 
 /* USB_Device init function */	
-void MX_USB_DEVICE_Init(void);
+void USB_Device_Init(void);
 
 #ifdef __cplusplus
 }
diff --git a/Upstream/Inc/usbd_conf.h b/Upstream/Inc/usbd_config.h
similarity index 100%
rename from Upstream/Inc/usbd_conf.h
rename to Upstream/Inc/usbd_config.h
diff --git a/Upstream/Inc/usbd_desc.h b/Upstream/Inc/usbd_descriptors.h
similarity index 95%
rename from Upstream/Inc/usbd_desc.h
rename to Upstream/Inc/usbd_descriptors.h
index 52ffc74..edd4188 100755
--- a/Upstream/Inc/usbd_desc.h
+++ b/Upstream/Inc/usbd_descriptors.h
@@ -74,6 +74,7 @@
   * @{
   */ 
 extern USBD_DescriptorsTypeDef FS_Desc;
+extern const int8_t  STORAGE_Inquirydata_FS[];
 /**
   * @}
   */ 
diff --git a/Upstream/Inc/usbd_storage_if.h b/Upstream/Inc/usbd_storage_if.h
deleted file mode 100755
index 86db905..0000000
--- a/Upstream/Inc/usbd_storage_if.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/**
-  ******************************************************************************
-  * @file           : usbd_storage_if.h
-  * @author         : MCD Application Team
-  * @version        : V1.1.0
-  * @date           : 19-March-2012
-  * @brief          : header file for the usbd_storage_if.c file
-  ******************************************************************************
-  * COPYRIGHT(c) 2015 STMicroelectronics
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  * 1. Redistributions of source code must retain the above copyright notice,
-  * this list of conditions and the following disclaimer.
-  * 2. Redistributions in binary form must reproduce the above copyright notice,
-  * this list of conditions and the following disclaimer in the documentation
-  * and/or other materials provided with the distribution.
-  * 3. Neither the name of STMicroelectronics nor the names of its contributors
-  * may be used to endorse or promote products derived from this software
-  * without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  *
-  ******************************************************************************
-*/
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-
-#ifndef __USBD_STORAGE_IF_H_
-#define __USBD_STORAGE_IF_H_
-
-/* Includes ------------------------------------------------------------------*/
-#include "usbd_msc.h"
-
-/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
-  * @{
-  */
-  
-/** @defgroup USBD_STORAGE
-  * @brief header file for the USBD_STORAGE.c file
-  * @{
-  */ 
-
-/** @defgroup USBD_STORAGE_Exported_Defines
-  * @{
-  */ 
-/**
-  * @}
-  */ 
-
-/** @defgroup USBD_STORAGE_Exported_Types
-  * @{
-  */
-
-/**
-  * @}
-  */ 
-
-/** @defgroup USBD_STORAGE_Exported_Macros
-  * @{
-  */ 
-
-/**
-  * @}
-  */ 
-
-/** @defgroup USBD_STORAGE_Exported_Variables
-  * @{
-  */ 
-extern USBD_StorageTypeDef  USBD_Storage_Interface_fops_FS;
-/**
-  * @}
-  */ 
-
-/** @defgroup USBD_STORAGE_Exported_FunctionsPrototype
-  * @{
-  */ 
-
-/**
-  * @}
-  */ 
-
-#endif /* __USBD_STORAGE_IF_H_ */
-
-/**
-  * @}
-  */ 
-
-/**
-* @}
-*/ 
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc.h
index 119fc11..82a4f08 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc.h
@@ -34,9 +34,10 @@
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include  "usbd_msc_bot.h"
-#include  "usbd_msc_scsi.h"
-#include  "usbd_ioreq.h"
+#include "usbd_msc_bot.h"
+#include "usbd_msc_scsi.h"
+#include "usbd_ioreq.h"
+#include "downstream_spi.h"
 
 /** @addtogroup USBD_MSC_BOT
   * @{
@@ -85,24 +86,26 @@ typedef struct _USBD_STORAGE
 
 typedef struct
 {
-  uint32_t                 max_lun;   
-  uint32_t                 interface; 
-  uint8_t                  bot_state;
-  uint8_t                  bot_status;  
-  uint16_t                 bot_data_length;
-  uint8_t                  bot_data[MSC_MEDIA_PACKET];  
-  USBD_MSC_BOT_CBWTypeDef  cbw;
-  USBD_MSC_BOT_CSWTypeDef  csw;
+  uint32_t                   max_lun;
+  uint32_t                   interface;
+  uint8_t                    bot_state;
+  uint8_t                    bot_status;
+  uint16_t                   bot_data_length;
+  uint8_t*                   bot_data;
+  DownstreamPacketTypeDef*	 bot_packet;			//Not NULL indicates we currently own a downstream packet buffer, and should free it when we are done.
+  USBD_MSC_BOT_CBWTypeDef    cbw;
+  USBD_MSC_BOT_CSWTypeDef    csw;
   
-  USBD_SCSI_SenseTypeDef   scsi_sense [SENSE_LIST_DEEPTH];
+  USBD_SCSI_SenseTypeDef   scsi_sense [SENSE_LIST_DEPTH];
   uint8_t                  scsi_sense_head;
   uint8_t                  scsi_sense_tail;
   
-  uint16_t                 scsi_blk_size;
-  uint32_t                 scsi_blk_nbr;
-  
-  uint32_t                 scsi_blk_addr;
-  uint32_t                 scsi_blk_len;
+  uint16_t                 scsi_blk_size;			//LOGICAL BLOCK LENGTH IN BYTES: Number of bytes of user data in a logical block [SBC-4]
+  uint32_t                 scsi_blk_nbr;			//This is total block count = LOGICAL BLOCK ADDRESS + 1. LOGICAL BLOCK ADDRESS: LBA of the last logical block on the direct access block device [SBC-4]
+
+  uint32_t                 scsi_blk_addr;			//LOGICAL BLOCK ADDRESS: Starting with the logical block referenced [SBC-4]
+  uint16_t                 scsi_blk_len;			//TRANSFER LENGTH: Number of contiguous logical blocks of data that shall be read [SBC-4]
+
 }
 USBD_MSC_BOT_HandleTypeDef; 
 
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_bot.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_bot.h
index 4216757..afd1d13 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_bot.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_bot.h
@@ -113,7 +113,6 @@ USBD_MSC_BOT_CSWTypeDef;
 /** @defgroup USBD_CORE_Exported_Types
   * @{
   */
-
 /**
   * @}
   */ 
@@ -125,10 +124,13 @@ void MSC_BOT_Reset (USBD_HandleTypeDef  *pdev);
 void MSC_BOT_DeInit (USBD_HandleTypeDef  *pdev);
 void MSC_BOT_DataIn (USBD_HandleTypeDef  *pdev, 
                      uint8_t epnum);
-
 void MSC_BOT_DataOut (USBD_HandleTypeDef  *pdev, 
                       uint8_t epnum);
 
+void MSC_BOT_DataIn_Callback(int8_t result);
+void MSC_BOT_DataOut_Callback(int8_t result);
+void MSC_BOT_CBW_Decode_Callback(int8_t result);
+
 void MSC_BOT_SendCSW (USBD_HandleTypeDef  *pdev,
                              uint8_t CSW_Status);
 
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_data.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_data.h
index 7fcd1f8..a218c6f 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_data.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_data.h
@@ -34,7 +34,7 @@
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include "usbd_conf.h"
+#include <usbd_config.h>
 
 /** @addtogroup STM32_USB_DEVICE_LIBRARY
   * @{
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_scsi.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_scsi.h
index 4c30a45..3cc4240 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_scsi.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Inc/usbd_msc_scsi.h
@@ -49,7 +49,7 @@
   * @{
   */ 
 
-#define SENSE_LIST_DEEPTH                           4
+#define SENSE_LIST_DEPTH                            4
 
 /* SCSI Commands */
 #define SCSI_FORMAT_UNIT                            0x04
@@ -99,15 +99,15 @@
 
 
 #define INVALID_CDB                                 0x20
-#define INVALID_FIELED_IN_COMMAND                   0x24
+#define INVALID_FIELD_IN_COMMAND                    0x24
 #define PARAMETER_LIST_LENGTH_ERROR                 0x1A
 #define INVALID_FIELD_IN_PARAMETER_LIST             0x26
 #define ADDRESS_OUT_OF_RANGE                        0x21
 #define MEDIUM_NOT_PRESENT                          0x3A
-#define MEDIUM_HAVE_CHANGED                         0x28
+#define MEDIUM_HAS_CHANGED                          0x28
 #define WRITE_PROTECTED                             0x27 
-#define UNRECOVERED_READ_ERROR			    0x11
-#define WRITE_FAULT				    0x03 
+#define UNRECOVERED_READ_ERROR                      0x11
+#define WRITE_FAULT                                 0x03
 
 #define READ_FORMAT_CAPACITY_DATA_LEN               0x0C
 #define READ_CAPACITY10_DATA_LEN                    0x08
@@ -145,6 +145,10 @@ typedef struct _SENSE_ITEM {
     char *pData;
   } w;
 } USBD_SCSI_SenseTypeDef; 
+
+
+typedef void (*SCSI_ProcessCmdCallbackTypeDef)(int8_t result);
+
 /**
   * @}
   */ 
@@ -167,9 +171,10 @@ typedef struct _SENSE_ITEM {
 /** @defgroup USBD_SCSI_Exported_FunctionsPrototype
   * @{
   */ 
-int8_t SCSI_ProcessCmd(USBD_HandleTypeDef  *pdev,
+void SCSI_ProcessCmd(USBD_HandleTypeDef  *pdev,
                            uint8_t lun, 
-                           uint8_t *cmd);
+                           uint8_t *cmd,
+						   SCSI_ProcessCmdCallbackTypeDef process_cmd_callback);
 
 void   SCSI_SenseCode(USBD_HandleTypeDef  *pdev,
                       uint8_t lun, 
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.c b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.c
index 37365d9..5a1a761 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.c
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc.c
@@ -42,7 +42,8 @@
 
 /* Includes ------------------------------------------------------------------*/
 #include "usbd_msc.h"
-
+#include "downstream_interface_def.h"
+#include "downstream_spi.h"
 
 /** @addtogroup STM32_USB_DEVICE_LIBRARY
   * @{
@@ -106,6 +107,8 @@ uint8_t  *USBD_MSC_GetOtherSpeedCfgDesc (uint16_t *length);
 
 uint8_t  *USBD_MSC_GetDeviceQualifierDescriptor (uint16_t *length);
 
+uint8_t USBD_MSC_BufferFreed(USBD_HandleTypeDef *pdev);
+
 
 /**
   * @}
@@ -128,7 +131,8 @@ USBD_ClassTypeDef  USBD_MSC =
   USBD_MSC_DataOut,
   NULL, /*SOF */ 
   NULL,  
-  NULL,     
+  NULL,
+  USBD_MSC_BufferFreed,
   USBD_MSC_GetHSCfgDesc,
   USBD_MSC_GetFSCfgDesc,  
   USBD_MSC_GetOtherSpeedCfgDesc,
@@ -181,7 +185,7 @@ __ALIGN_BEGIN uint8_t USBD_MSC_CfgHSDesc[USB_MSC_CONFIG_DESC_SIZ]  __ALIGN_END =
 
 /* USB Mass storage device Configuration Descriptor */
 /*   All Descriptors (Configuration, Interface, Endpoint, Class, Vendor */
-uint8_t USBD_MSC_CfgFSDesc[USB_MSC_CONFIG_DESC_SIZ]  __ALIGN_END =
+__ALIGN_BEGIN uint8_t USBD_MSC_CfgFSDesc[USB_MSC_CONFIG_DESC_SIZ]  __ALIGN_END =
 {
   
   0x09,   /* bLength: Configuation Descriptor size */
@@ -226,7 +230,7 @@ uint8_t USBD_MSC_CfgFSDesc[USB_MSC_CONFIG_DESC_SIZ]  __ALIGN_END =
 __ALIGN_BEGIN uint8_t USBD_MSC_OtherSpeedCfgDesc[USB_MSC_CONFIG_DESC_SIZ]   __ALIGN_END  =
 {
   
-  0x09,   /* bLength: Configuation Descriptor size */
+  0x09,   /* bLength: Configuration Descriptor size */
   USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION,   
   USB_MSC_CONFIG_DESC_SIZ,
   
@@ -337,7 +341,8 @@ uint8_t  USBD_MSC_Init (USBD_HandleTypeDef *pdev,
   else
   {
     /* Init the BOT  layer */
-    MSC_BOT_Init(pdev); 
+    MSC_BOT_Init(pdev);
+    ((USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData)->bot_packet = NULL;
     ret = 0;
   }
   
@@ -398,7 +403,7 @@ uint8_t  USBD_MSC_Setup (USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req)
          (req->wLength == 1) &&
          ((req->bmRequest & 0x80) == 0x80))
       {
-        hmsc->max_lun = ((USBD_StorageTypeDef *)pdev->pUserData)->GetMaxLun();
+        hmsc->max_lun = (UPSTREAM_LUN_NBR - 1);
         USBD_CtlSendData (pdev,
                           (uint8_t *)&hmsc->max_lun,
                           1);
@@ -530,6 +535,18 @@ uint8_t  USBD_MSC_DataOut (USBD_HandleTypeDef *pdev,
   return 0;
 }
 
+
+uint8_t USBD_MSC_BufferFreed(USBD_HandleTypeDef *pdev)
+{
+	if (((USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData)->bot_packet != NULL)
+	{
+		Downstream_ReleasePacket(((USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData)->bot_packet);
+		((USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData)->bot_packet = NULL;
+	}
+	return 0;
+}
+
+
 /**
 * @brief  USBD_MSC_GetHSCfgDesc 
 *         return configuration descriptor
@@ -577,20 +594,6 @@ uint8_t  *USBD_MSC_GetDeviceQualifierDescriptor (uint16_t *length)
   return USBD_MSC_DeviceQualifierDesc;
 }
 
-/**
-* @brief  USBD_MSC_RegisterStorage
-* @param  fops: storage callback
-* @retval status
-*/
-uint8_t  USBD_MSC_RegisterStorage  (USBD_HandleTypeDef   *pdev, 
-                                    USBD_StorageTypeDef *fops)
-{
-  if(fops != NULL)
-  {
-    pdev->pUserData= fops;
-  }
-  return 0;
-}
 
 /**
   * @}
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.c b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.c
index 9e893e8..f444170 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.c
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_bot.c
@@ -70,6 +70,9 @@
   * @{
   */ 
 
+USBD_HandleTypeDef			*MSC_BOT_pdev;
+USBD_MSC_BOT_HandleTypeDef	*MSC_BOT_hmsc;
+
 /**
   * @}
   */ 
@@ -112,8 +115,6 @@ void MSC_BOT_Init (USBD_HandleTypeDef  *pdev)
   hmsc->scsi_sense_tail = 0;
   hmsc->scsi_sense_head = 0;
   
-  ((USBD_StorageTypeDef *)pdev->pUserData)->Init(0);
-  
   USBD_LL_FlushEP(pdev, MSC_EPOUT_ADDR);
   USBD_LL_FlushEP(pdev, MSC_EPIN_ADDR);
   
@@ -171,24 +172,32 @@ void MSC_BOT_DataIn (USBD_HandleTypeDef  *pdev,
   switch (hmsc->bot_state)
   {
   case USBD_BOT_DATA_IN:
-    if(SCSI_ProcessCmd(pdev,
-                        hmsc->cbw.bLUN,
-                        &hmsc->cbw.CB[0]) < 0)
-    {
-      MSC_BOT_SendCSW (pdev, USBD_CSW_CMD_FAILED);
-    }
+	MSC_BOT_pdev = pdev;
+    SCSI_ProcessCmd(pdev,
+					hmsc->cbw.bLUN,
+					&hmsc->cbw.CB[0],
+					MSC_BOT_DataIn_Callback);
     break;
     
   case USBD_BOT_SEND_DATA:
   case USBD_BOT_LAST_DATA_IN:
     MSC_BOT_SendCSW (pdev, USBD_CSW_CMD_PASSED);
-    
     break;
     
   default:
     break;
   }
 }
+
+
+void MSC_BOT_DataIn_Callback(int8_t result)
+{
+	if (result < 0)
+	{
+		MSC_BOT_SendCSW (MSC_BOT_pdev, USBD_CSW_CMD_FAILED);
+	}
+}
+
 /**
 * @brief  MSC_BOT_DataOut
 *         Process MSC OUT data
@@ -209,13 +218,11 @@ void MSC_BOT_DataOut (USBD_HandleTypeDef  *pdev,
     
   case USBD_BOT_DATA_OUT:
     
-    if(SCSI_ProcessCmd(pdev,
-                        hmsc->cbw.bLUN,
-                        &hmsc->cbw.CB[0]) < 0)
-    {
-      MSC_BOT_SendCSW (pdev, USBD_CSW_CMD_FAILED);
-    }
-
+    MSC_BOT_pdev = pdev;
+    SCSI_ProcessCmd(pdev,
+                    hmsc->cbw.bLUN,
+                    &hmsc->cbw.CB[0],
+					MSC_BOT_DataOut_Callback);
     break;
     
   default:
@@ -223,6 +230,15 @@ void MSC_BOT_DataOut (USBD_HandleTypeDef  *pdev,
   }
 }
 
+
+void MSC_BOT_DataOut_Callback(int8_t result)
+{
+	if (result < 0)
+	{
+		MSC_BOT_SendCSW (MSC_BOT_pdev, USBD_CSW_CMD_FAILED);
+	}
+}
+
 /**
 * @brief  MSC_BOT_CBW_Decode
 *         Decode the CBW command and set the BOT state machine accordingly  
@@ -254,40 +270,51 @@ static void  MSC_BOT_CBW_Decode (USBD_HandleTypeDef  *pdev)
   }
   else
   {
-    if(SCSI_ProcessCmd(pdev,
-                       hmsc->cbw.bLUN,
-                       &hmsc->cbw.CB[0]) < 0)
-    {
-      if(hmsc->bot_state == USBD_BOT_NO_DATA)
-      {
-       MSC_BOT_SendCSW (pdev,
-                         USBD_CSW_CMD_FAILED); 
-      }
-      else
-      {
-        MSC_BOT_Abort(pdev);
-      }
-    }
-    /*Burst xfer handled internally*/
-    else if ((hmsc->bot_state != USBD_BOT_DATA_IN) && 
-             (hmsc->bot_state != USBD_BOT_DATA_OUT) &&
-             (hmsc->bot_state != USBD_BOT_LAST_DATA_IN)) 
-    {
-      if (hmsc->bot_data_length > 0)
-      {
-        MSC_BOT_SendData(pdev,
-                         hmsc->bot_data, 
-                         hmsc->bot_data_length);
-      }
-      else if (hmsc->bot_data_length == 0) 
-      {
-        MSC_BOT_SendCSW (pdev,
-                         USBD_CSW_CMD_PASSED);
-      }
-    }
+	MSC_BOT_pdev = pdev;
+	MSC_BOT_hmsc = hmsc;
+    SCSI_ProcessCmd(pdev,
+				    hmsc->cbw.bLUN,
+				    &hmsc->cbw.CB[0],
+				    MSC_BOT_CBW_Decode_Callback);
   }
 }
 
+
+void MSC_BOT_CBW_Decode_Callback(int8_t result)
+{
+	if (result < 0)
+	{
+	  if(MSC_BOT_hmsc->bot_state == USBD_BOT_NO_DATA)
+	  {
+	   MSC_BOT_SendCSW (MSC_BOT_pdev,
+						 USBD_CSW_CMD_FAILED);
+	  }
+	  else
+	  {
+		MSC_BOT_Abort(MSC_BOT_pdev);
+	  }
+	}
+	/*Burst xfer handled internally*/
+	else if ((MSC_BOT_hmsc->bot_state != USBD_BOT_DATA_IN) &&
+			 (MSC_BOT_hmsc->bot_state != USBD_BOT_DATA_OUT) &&
+			 (MSC_BOT_hmsc->bot_state != USBD_BOT_LAST_DATA_IN))
+	{
+	  if (MSC_BOT_hmsc->bot_data_length > 0)
+	  {
+		MSC_BOT_SendData(MSC_BOT_pdev,
+				MSC_BOT_hmsc->bot_data,
+				MSC_BOT_hmsc->bot_data_length);
+	  }
+	  else if (MSC_BOT_hmsc->bot_data_length == 0)
+	  {
+		MSC_BOT_SendCSW (MSC_BOT_pdev,
+						 USBD_CSW_CMD_PASSED);
+	  }
+	}
+}
+
+
+
 /**
 * @brief  MSC_BOT_SendData
 *         Send the requested data
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c
index f7a90e6..e46ac08 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c
@@ -30,7 +30,10 @@
 #include "usbd_msc_scsi.h"
 #include "usbd_msc.h"
 #include "usbd_msc_data.h"
-
+#include "usbd_descriptors.h"
+#include "downstream_interface_def.h"
+#include "downstream_interface_msc.h"
+#include "downstream_spi.h"
 
 
 /** @addtogroup STM32_USB_DEVICE_LIBRARY
@@ -72,6 +75,13 @@
   * @{
   */ 
 
+USBD_HandleTypeDef				*SCSI_ProcessCmd_pdev;
+uint8_t							SCSI_ProcessCmd_lun;
+uint8_t							*SCSI_ProcessCmd_params;
+SCSI_ProcessCmdCallbackTypeDef	SCSI_ProcessCmd_callback;
+USBD_MSC_BOT_HandleTypeDef		*SCSI_ProcessCmd_hmsc;
+
+
 /**
   * @}
   */ 
@@ -80,26 +90,33 @@
 /** @defgroup MSC_SCSI_Private_FunctionPrototypes
   * @{
   */ 
-static int8_t SCSI_TestUnitReady(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Inquiry(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ReadFormatCapacity(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ReadCapacity10(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_RequestSense (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_StartStopUnit(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ModeSense6 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ModeSense10 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Write10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *params);
-static int8_t SCSI_Read10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *params);
-static int8_t SCSI_Verify10(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_CheckAddressRange (USBD_HandleTypeDef  *pdev, 
-                                      uint8_t lun , 
-                                      uint32_t blk_offset , 
-                                      uint16_t blk_nbr);
-static int8_t SCSI_ProcessRead (USBD_HandleTypeDef  *pdev,
-                                uint8_t lun);
-
-static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef  *pdev,
-                                 uint8_t lun);
+static void SCSI_TestUnitReady(void);
+static void SCSI_Inquiry(void);
+static void SCSI_ReadFormatCapacity(void);
+static void SCSI_ReadCapacity10(void);
+static void SCSI_RequestSense (void);
+static void SCSI_StartStopUnit(void);
+static void SCSI_ModeSense6 (void);
+static void SCSI_ModeSense10 (void);
+static void SCSI_Write10(void);
+static void SCSI_Read10(void);
+static void SCSI_Verify10(void);
+static int8_t SCSI_CheckAddressRange (uint32_t blk_offset , uint16_t blk_nbr);
+
+void SCSI_TestUnitReadyCallback(HAL_StatusTypeDef result);
+void SCSI_ReadCapacity10Callback(HAL_StatusTypeDef result,
+								 uint32_t result_uint[],
+								 DownstreamPacketTypeDef* downstreamPacket);
+void SCSI_ReadFormatCapacityCallback(HAL_StatusTypeDef result,
+									 uint32_t result_uint[],
+									 DownstreamPacketTypeDef* packetToUse);
+void SCSI_Read10BeginCallback(HAL_StatusTypeDef result);
+void SCSI_Read10ReplyCallback(HAL_StatusTypeDef result,
+							  DownstreamPacketTypeDef* downstreamPacket);
+void SCSI_Write10BeginCallback(HAL_StatusTypeDef result);
+void SCSI_Write10FreePacketCallback(DownstreamPacketTypeDef* freePacket);
+
+
 /**
   * @}
   */ 
@@ -118,54 +135,74 @@ static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef  *pdev,
 * @param  params: Command parameters
 * @retval status
 */
-int8_t SCSI_ProcessCmd(USBD_HandleTypeDef  *pdev,
-                           uint8_t lun, 
-                           uint8_t *params)
+void SCSI_ProcessCmd(USBD_HandleTypeDef  *pdev,
+                     uint8_t lun,
+                     uint8_t *params,
+					 SCSI_ProcessCmdCallbackTypeDef callback)
 {
-  
+	//Save all our parameters for easy access in callback routines
+	SCSI_ProcessCmd_pdev = pdev;
+	SCSI_ProcessCmd_params = params;
+	SCSI_ProcessCmd_lun = lun;
+	SCSI_ProcessCmd_callback = callback;
+	SCSI_ProcessCmd_hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData;
+
   switch (params[0])
   {
   case SCSI_TEST_UNIT_READY:
-    return SCSI_TestUnitReady(pdev, lun, params);
+    SCSI_TestUnitReady();
+    return;
     
   case SCSI_REQUEST_SENSE:
-    return SCSI_RequestSense (pdev, lun, params);
+    SCSI_RequestSense();
+    return;
+
   case SCSI_INQUIRY:
-    return SCSI_Inquiry(pdev, lun, params);
+    SCSI_Inquiry();
+    return;
     
   case SCSI_START_STOP_UNIT:
-    return SCSI_StartStopUnit(pdev, lun, params);
+    SCSI_StartStopUnit();
+    return;
     
   case SCSI_ALLOW_MEDIUM_REMOVAL:
-    return SCSI_StartStopUnit(pdev, lun, params);
+    SCSI_StartStopUnit();
+    return;
     
   case SCSI_MODE_SENSE6:
-    return SCSI_ModeSense6 (pdev, lun, params);
+    SCSI_ModeSense6();
+    return;
     
   case SCSI_MODE_SENSE10:
-    return SCSI_ModeSense10 (pdev, lun, params);
+    SCSI_ModeSense10();
+    return;
     
   case SCSI_READ_FORMAT_CAPACITIES:
-    return SCSI_ReadFormatCapacity(pdev, lun, params);
+    SCSI_ReadFormatCapacity();
+    return;
     
   case SCSI_READ_CAPACITY10:
-    return SCSI_ReadCapacity10(pdev, lun, params);
+    SCSI_ReadCapacity10();
+    return;
     
   case SCSI_READ10:
-    return SCSI_Read10(pdev, lun, params); 
+    SCSI_Read10();
+    return;
     
   case SCSI_WRITE10:
-    return SCSI_Write10(pdev, lun, params);
+    SCSI_Write10();
+    return;
     
   case SCSI_VERIFY10:
-    return SCSI_Verify10(pdev, lun, params);
+    SCSI_Verify10();
+    return;
     
   default:
     SCSI_SenseCode(pdev, 
                    lun,
                    ILLEGAL_REQUEST, 
                    INVALID_CDB);    
-    return -1;
+    SCSI_ProcessCmd_callback(-1);
   }
 }
 
@@ -177,34 +214,53 @@ int8_t SCSI_ProcessCmd(USBD_HandleTypeDef  *pdev,
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_TestUnitReady(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+void SCSI_TestUnitReady(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData;  
-    
   /* case 9 : Hi > D0 */
-  if (hmsc->cbw.dDataLength != 0)
+  if (SCSI_ProcessCmd_hmsc->cbw.dDataLength != 0)
   {
-    SCSI_SenseCode(pdev,
-                   hmsc->cbw.bLUN, 
+    SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+    			   SCSI_ProcessCmd_lun,
                    ILLEGAL_REQUEST, 
                    INVALID_CDB);
-    return -1;
-  }  
+    SCSI_ProcessCmd_callback(-1);
+    return;
+  }
   
-  if(((USBD_StorageTypeDef *)pdev->pUserData)->IsReady(lun) !=0 )
+  if (SCSI_ProcessCmd_lun >= UPSTREAM_LUN_NBR)
   {
-    SCSI_SenseCode(pdev,
-                   lun,
-                   NOT_READY, 
-                   MEDIUM_NOT_PRESENT);
-    
-    hmsc->bot_state = USBD_BOT_NO_DATA;
-    return -1;
-  } 
-  hmsc->bot_data_length = 0;
-  return 0;
+	  SCSI_TestUnitReadyCallback(HAL_ERROR);
+	  return;
+  }
+
+  if (DownstreamInterface_TestReady(SCSI_TestUnitReadyCallback) != HAL_OK)
+  {
+	  SCSI_TestUnitReadyCallback(HAL_ERROR);
+  }
 }
 
+
+void SCSI_TestUnitReadyCallback(HAL_StatusTypeDef result)
+{
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_hmsc->bot_state = USBD_BOT_NO_DATA;
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	//Success!
+	SCSI_ProcessCmd_hmsc->bot_data_length = 0;
+	SCSI_ProcessCmd_callback(0);
+}
+
+
+
+
 /**
 * @brief  SCSI_Inquiry
 *         Process Inquiry command
@@ -212,36 +268,40 @@ static int8_t SCSI_TestUnitReady(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t  SCSI_Inquiry(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_Inquiry(void)
 {
-  uint8_t* pPage;
-  uint16_t len;
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  
-  if (params[1] & 0x01)/*Evpd is set*/
-  {
-    pPage = (uint8_t *)MSC_Page00_Inquiry_Data;
-    len = LENGTH_INQUIRY_PAGE00;
-  }
-  else
-  {
-    
-    pPage = (uint8_t *)&((USBD_StorageTypeDef *)pdev->pUserData)->pInquiry[lun * STANDARD_INQUIRY_DATA_LEN];
-    len = pPage[4] + 5;
-    
-    if (params[4] <= len)
-    {
-      len = params[4];
-    }
-  }
-  hmsc->bot_data_length = len;
-  
-  while (len) 
-  {
-    len--;
-    hmsc->bot_data[len] = pPage[len];
-  }
-  return 0;
+	uint8_t* pPage;
+	uint16_t len;
+	DownstreamPacketTypeDef* freePacket;
+
+	freePacket = Downstream_GetFreePacketImmediately();
+	SCSI_ProcessCmd_hmsc->bot_packet = freePacket;
+	SCSI_ProcessCmd_hmsc->bot_data = freePacket->Data;
+
+	if (SCSI_ProcessCmd_params[1] & 0x01)/*Evpd is set*/
+	{
+		pPage = (uint8_t *)MSC_Page00_Inquiry_Data;
+		len = LENGTH_INQUIRY_PAGE00;
+	}
+	else
+	{
+		//Return the same info for any LUN requested
+		pPage = (uint8_t *)&STORAGE_Inquirydata_FS;
+		len = pPage[4] + 5;
+
+		if (SCSI_ProcessCmd_params[4] <= len)
+		{
+			len = SCSI_ProcessCmd_params[4];
+		}
+	}
+	SCSI_ProcessCmd_hmsc->bot_data_length = len;
+
+	while (len)
+	{
+		len--;
+		SCSI_ProcessCmd_hmsc->bot_data[len] = pPage[len];
+	}
+	SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -251,35 +311,49 @@ static int8_t  SCSI_Inquiry(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *par
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_ReadCapacity10(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_ReadCapacity10(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  
-  if(((USBD_StorageTypeDef *)pdev->pUserData)->GetCapacity(lun, &hmsc->scsi_blk_nbr, &hmsc->scsi_blk_size) != 0)
-  {
-    SCSI_SenseCode(pdev,
-                   lun,
-                   NOT_READY, 
-                   MEDIUM_NOT_PRESENT);
-    return -1;
-  } 
-  else
-  {
-    
-    hmsc->bot_data[0] = (uint8_t)((hmsc->scsi_blk_nbr - 1) >> 24);
-    hmsc->bot_data[1] = (uint8_t)((hmsc->scsi_blk_nbr - 1) >> 16);
-    hmsc->bot_data[2] = (uint8_t)((hmsc->scsi_blk_nbr - 1) >>  8);
-    hmsc->bot_data[3] = (uint8_t)(hmsc->scsi_blk_nbr - 1);
-    
-    hmsc->bot_data[4] = (uint8_t)(hmsc->scsi_blk_size >>  24);
-    hmsc->bot_data[5] = (uint8_t)(hmsc->scsi_blk_size >>  16);
-    hmsc->bot_data[6] = (uint8_t)(hmsc->scsi_blk_size >>  8);
-    hmsc->bot_data[7] = (uint8_t)(hmsc->scsi_blk_size);
-    
-    hmsc->bot_data_length = 8;
-    return 0;
-  }
+	if (DownstreamInterface_GetCapacity(SCSI_ReadCapacity10Callback) != HAL_OK)
+	{
+		SCSI_ReadCapacity10Callback(HAL_ERROR, NULL, NULL);
+	}
+}
+
+
+void SCSI_ReadCapacity10Callback(HAL_StatusTypeDef result,
+								 uint32_t result_uint[],
+								 DownstreamPacketTypeDef* downstreamPacket)
+{
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	SCSI_ProcessCmd_hmsc->bot_packet = downstreamPacket;
+	SCSI_ProcessCmd_hmsc->bot_data = downstreamPacket->Data;
+
+	SCSI_ProcessCmd_hmsc->scsi_blk_nbr = result_uint[0];
+	SCSI_ProcessCmd_hmsc->scsi_blk_size = result_uint[1];
+
+	SCSI_ProcessCmd_hmsc->bot_data[0] = (uint8_t)((SCSI_ProcessCmd_hmsc->scsi_blk_nbr - 1) >> 24);
+	SCSI_ProcessCmd_hmsc->bot_data[1] = (uint8_t)((SCSI_ProcessCmd_hmsc->scsi_blk_nbr - 1) >> 16);
+	SCSI_ProcessCmd_hmsc->bot_data[2] = (uint8_t)((SCSI_ProcessCmd_hmsc->scsi_blk_nbr - 1) >>  8);
+	SCSI_ProcessCmd_hmsc->bot_data[3] = (uint8_t)(SCSI_ProcessCmd_hmsc->scsi_blk_nbr - 1);
+    
+	SCSI_ProcessCmd_hmsc->bot_data[4] = (uint8_t)(SCSI_ProcessCmd_hmsc->scsi_blk_size >>  24);
+	SCSI_ProcessCmd_hmsc->bot_data[5] = (uint8_t)(SCSI_ProcessCmd_hmsc->scsi_blk_size >>  16);
+	SCSI_ProcessCmd_hmsc->bot_data[6] = (uint8_t)(SCSI_ProcessCmd_hmsc->scsi_blk_size >>  8);
+	SCSI_ProcessCmd_hmsc->bot_data[7] = (uint8_t)(SCSI_ProcessCmd_hmsc->scsi_blk_size);
+    
+	SCSI_ProcessCmd_hmsc->bot_data_length = 8;
+	SCSI_ProcessCmd_callback(0);
 }
+
 /**
 * @brief  SCSI_ReadFormatCapacity
 *         Process Read Format Capacity command
@@ -287,44 +361,50 @@ static int8_t SCSI_ReadCapacity10(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_ReadFormatCapacity(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_ReadFormatCapacity(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  
-  uint16_t blk_size;
-  uint32_t blk_nbr;
-  uint16_t i;
-  
-  for(i=0 ; i < 12 ; i++) 
-  {
-    hmsc->bot_data[i] = 0;
-  }
-  
-  if(((USBD_StorageTypeDef *)pdev->pUserData)->GetCapacity(lun, &blk_nbr, &blk_size) != 0)
-  {
-    SCSI_SenseCode(pdev,
-                   lun,
-                   NOT_READY, 
-                   MEDIUM_NOT_PRESENT);
-    return -1;
-  } 
-  else
-  {
-    hmsc->bot_data[3] = 0x08;
-    hmsc->bot_data[4] = (uint8_t)((blk_nbr - 1) >> 24);
-    hmsc->bot_data[5] = (uint8_t)((blk_nbr - 1) >> 16);
-    hmsc->bot_data[6] = (uint8_t)((blk_nbr - 1) >>  8);
-    hmsc->bot_data[7] = (uint8_t)(blk_nbr - 1);
-    
-    hmsc->bot_data[8] = 0x02;
-    hmsc->bot_data[9] = (uint8_t)(blk_size >>  16);
-    hmsc->bot_data[10] = (uint8_t)(blk_size >>  8);
-    hmsc->bot_data[11] = (uint8_t)(blk_size);
-    
-    hmsc->bot_data_length = 12;
-    return 0;
-  }
+	if (DownstreamInterface_GetCapacity(SCSI_ReadFormatCapacityCallback) != HAL_OK)
+	{
+		SCSI_ReadFormatCapacityCallback(HAL_ERROR, NULL, NULL);
+	}
+}
+
+
+void SCSI_ReadFormatCapacityCallback(HAL_StatusTypeDef result,
+									 uint32_t result_uint[],
+									 DownstreamPacketTypeDef* packetToUse)
+{
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	SCSI_ProcessCmd_hmsc->bot_packet = packetToUse;
+	SCSI_ProcessCmd_hmsc->bot_data = packetToUse->Data;
+
+	SCSI_ProcessCmd_hmsc->bot_data[0] = 0;
+	SCSI_ProcessCmd_hmsc->bot_data[1] = 0;
+	SCSI_ProcessCmd_hmsc->bot_data[2] = 0;
+	SCSI_ProcessCmd_hmsc->bot_data[3] = 0x08;
+	SCSI_ProcessCmd_hmsc->bot_data[4] = (uint8_t)((result_uint[0] - 1) >> 24);
+	SCSI_ProcessCmd_hmsc->bot_data[5] = (uint8_t)((result_uint[0] - 1) >> 16);
+	SCSI_ProcessCmd_hmsc->bot_data[6] = (uint8_t)((result_uint[0] - 1) >>  8);
+	SCSI_ProcessCmd_hmsc->bot_data[7] = (uint8_t)(result_uint[0] - 1);
+
+	SCSI_ProcessCmd_hmsc->bot_data[8] = 0x02;
+	SCSI_ProcessCmd_hmsc->bot_data[9] = (uint8_t)(result_uint[1] >>  16);
+	SCSI_ProcessCmd_hmsc->bot_data[10] = (uint8_t)(result_uint[1] >>  8);
+	SCSI_ProcessCmd_hmsc->bot_data[11] = (uint8_t)(result_uint[1]);
+
+	SCSI_ProcessCmd_hmsc->bot_data_length = 12;
+    SCSI_ProcessCmd_callback(0);
 }
+
 /**
 * @brief  SCSI_ModeSense6
 *         Process Mode Sense6 command
@@ -332,18 +412,23 @@ static int8_t SCSI_ReadFormatCapacity(USBD_HandleTypeDef  *pdev, uint8_t lun, ui
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_ModeSense6 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_ModeSense6 (void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  uint16_t len = 8 ;
-  hmsc->bot_data_length = len;
-  
-  while (len) 
-  {
-    len--;
-    hmsc->bot_data[len] = MSC_Mode_Sense6_data[len];
-  }
-  return 0;
+	uint16_t len = 8;
+	DownstreamPacketTypeDef* freePacket;
+
+	freePacket = Downstream_GetFreePacketImmediately();
+	SCSI_ProcessCmd_hmsc->bot_packet = freePacket;
+	SCSI_ProcessCmd_hmsc->bot_data = freePacket->Data;
+
+	SCSI_ProcessCmd_hmsc->bot_data_length = len;
+
+	while (len)
+	{
+		len--;
+		SCSI_ProcessCmd_hmsc->bot_data[len] = MSC_Mode_Sense6_data[len];
+	}
+	SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -353,19 +438,23 @@ static int8_t SCSI_ModeSense6 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_ModeSense10 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_ModeSense10(void)
 {
-  uint16_t len = 8;
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  
-  hmsc->bot_data_length = len;
+	uint16_t len = 8;
+	DownstreamPacketTypeDef* freePacket;
 
-  while (len) 
-  {
-    len--;
-    hmsc->bot_data[len] = MSC_Mode_Sense10_data[len];
-  }
-  return 0;
+	freePacket = Downstream_GetFreePacketImmediately();
+	SCSI_ProcessCmd_hmsc->bot_packet = freePacket;
+	SCSI_ProcessCmd_hmsc->bot_data = freePacket->Data;
+
+	SCSI_ProcessCmd_hmsc->bot_data_length = len;
+
+	while (len)
+	{
+		len--;
+		SCSI_ProcessCmd_hmsc->bot_data[len] = MSC_Mode_Sense10_data[len];
+	}
+	SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -376,38 +465,41 @@ static int8_t SCSI_ModeSense10 (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t
 * @retval status
 */
 
-static int8_t SCSI_RequestSense (USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_RequestSense(void)
 {
-  uint8_t i;
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData; 
-  
-  for(i=0 ; i < REQUEST_SENSE_DATA_LEN ; i++) 
-  {
-    hmsc->bot_data[i] = 0;
-  }
-  
-  hmsc->bot_data[0]	= 0x70;		
-  hmsc->bot_data[7]	= REQUEST_SENSE_DATA_LEN - 6;	
-  
-  if((hmsc->scsi_sense_head != hmsc->scsi_sense_tail)) {
-    
-    hmsc->bot_data[2]     = hmsc->scsi_sense[hmsc->scsi_sense_head].Skey;		
-    hmsc->bot_data[12]    = hmsc->scsi_sense[hmsc->scsi_sense_head].w.b.ASCQ;	
-    hmsc->bot_data[13]    = hmsc->scsi_sense[hmsc->scsi_sense_head].w.b.ASC;	
-    hmsc->scsi_sense_head++;
-    
-    if (hmsc->scsi_sense_head == SENSE_LIST_DEEPTH)
-    {
-      hmsc->scsi_sense_head = 0;
-    }
-  }
-  hmsc->bot_data_length = REQUEST_SENSE_DATA_LEN;  
-  
-  if (params[4] <= REQUEST_SENSE_DATA_LEN)
-  {
-    hmsc->bot_data_length = params[4];
-  }
-  return 0;
+	uint8_t i;
+	DownstreamPacketTypeDef* freePacket;
+
+	freePacket = Downstream_GetFreePacketImmediately();
+	SCSI_ProcessCmd_hmsc->bot_packet = freePacket;
+	SCSI_ProcessCmd_hmsc->bot_data = freePacket->Data;
+
+	for (i=0 ; i < REQUEST_SENSE_DATA_LEN ; i++)
+	{
+	  SCSI_ProcessCmd_hmsc->bot_data[i] = 0;
+	}
+
+	SCSI_ProcessCmd_hmsc->bot_data[0]	= 0x70;
+	SCSI_ProcessCmd_hmsc->bot_data[7]	= REQUEST_SENSE_DATA_LEN - 6;
+
+	if((SCSI_ProcessCmd_hmsc->scsi_sense_head != SCSI_ProcessCmd_hmsc->scsi_sense_tail))
+	{
+	  SCSI_ProcessCmd_hmsc->bot_data[2]     = SCSI_ProcessCmd_hmsc->scsi_sense[SCSI_ProcessCmd_hmsc->scsi_sense_head].Skey;
+	  SCSI_ProcessCmd_hmsc->bot_data[12]    = SCSI_ProcessCmd_hmsc->scsi_sense[SCSI_ProcessCmd_hmsc->scsi_sense_head].w.b.ASCQ;
+	  SCSI_ProcessCmd_hmsc->bot_data[13]    = SCSI_ProcessCmd_hmsc->scsi_sense[SCSI_ProcessCmd_hmsc->scsi_sense_head].w.b.ASC;
+	  SCSI_ProcessCmd_hmsc->scsi_sense_head++;
+      if (SCSI_ProcessCmd_hmsc->scsi_sense_head == SENSE_LIST_DEPTH)
+	  {
+    	SCSI_ProcessCmd_hmsc->scsi_sense_head = 0;
+	  }
+	}
+	SCSI_ProcessCmd_hmsc->bot_data_length = REQUEST_SENSE_DATA_LEN;
+
+	if (SCSI_ProcessCmd_params[4] <= REQUEST_SENSE_DATA_LEN)
+	{
+	  SCSI_ProcessCmd_hmsc->bot_data_length = SCSI_ProcessCmd_params[4];
+	}
+	SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -426,7 +518,7 @@ void SCSI_SenseCode(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t sKey, uint8_
   hmsc->scsi_sense[hmsc->scsi_sense_tail].Skey  = sKey;
   hmsc->scsi_sense[hmsc->scsi_sense_tail].w.ASC = ASC << 8;
   hmsc->scsi_sense_tail++;
-  if (hmsc->scsi_sense_tail == SENSE_LIST_DEEPTH)
+  if (hmsc->scsi_sense_tail == SENSE_LIST_DEPTH)
   {
     hmsc->scsi_sense_tail = 0;
   }
@@ -438,11 +530,10 @@ void SCSI_SenseCode(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t sKey, uint8_
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_StartStopUnit(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t *params)
+static void SCSI_StartStopUnit(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData;   
-  hmsc->bot_data_length = 0;
-  return 0;
+  SCSI_ProcessCmd_hmsc->bot_data_length = 0;
+  SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -452,67 +543,121 @@ static int8_t SCSI_StartStopUnit(USBD_HandleTypeDef  *pdev, uint8_t lun, uint8_t
 * @param  params: Command parameters
 * @retval status
 */
-static int8_t SCSI_Read10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *params)
+static void SCSI_Read10(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData; 
-  
-  if(hmsc->bot_state == USBD_BOT_IDLE)  /* Idle */
-  {
-    
-    /* case 10 : Ho <> Di */
-    
-    if ((hmsc->cbw.bmFlags & 0x80) != 0x80)
-    {
-      SCSI_SenseCode(pdev,
-                     hmsc->cbw.bLUN, 
-                     ILLEGAL_REQUEST, 
-                     INVALID_CDB);
-      return -1;
-    }    
-    
-    if(((USBD_StorageTypeDef *)pdev->pUserData)->IsReady(lun) !=0 )
-    {
-      SCSI_SenseCode(pdev,
-                     lun,
-                     NOT_READY, 
-                     MEDIUM_NOT_PRESENT);
-      return -1;
-    } 
-    
-    hmsc->scsi_blk_addr = (params[2] << 24) | \
-      (params[3] << 16) | \
-        (params[4] <<  8) | \
-          params[5];
-    
-    hmsc->scsi_blk_len =  (params[7] <<  8) | \
-      params[8];  
-    
-    
-    
-    if( SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr, hmsc->scsi_blk_len) < 0)
-    {
-      return -1; /* error */
-    }
-    
-    hmsc->bot_state = USBD_BOT_DATA_IN;
-    hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
-    hmsc->scsi_blk_len  *= hmsc->scsi_blk_size;
-    
-    /* cases 4,5 : Hi <> Dn */
-    if (hmsc->cbw.dDataLength != hmsc->scsi_blk_len)
-    {
-      SCSI_SenseCode(pdev,
-                     hmsc->cbw.bLUN, 
-                     ILLEGAL_REQUEST, 
-                     INVALID_CDB);
-      return -1;
-    }
-  }
-  hmsc->bot_data_length = MSC_MEDIA_PACKET;  
-  
-  return SCSI_ProcessRead(pdev, lun);
+	if (SCSI_ProcessCmd_hmsc->bot_state == USBD_BOT_IDLE)  /* Idle */
+	{
+		/* case 10 : Ho <> Di */
+		if ((SCSI_ProcessCmd_hmsc->cbw.bmFlags & 0x80) != 0x80)
+		{
+			SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						 SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						 ILLEGAL_REQUEST,
+						 INVALID_CDB);
+			SCSI_ProcessCmd_callback(-1);
+			return;
+		}
+
+		SCSI_ProcessCmd_hmsc->scsi_blk_addr = (SCSI_ProcessCmd_params[2] << 24) | \
+											  (SCSI_ProcessCmd_params[3] << 16) | \
+											  (SCSI_ProcessCmd_params[4] <<  8) | \
+											  SCSI_ProcessCmd_params[5];
+
+		SCSI_ProcessCmd_hmsc->scsi_blk_len =  (SCSI_ProcessCmd_params[7] <<  8) | \
+											  SCSI_ProcessCmd_params[8];
+
+		if (SCSI_CheckAddressRange(SCSI_ProcessCmd_hmsc->scsi_blk_addr,
+								   SCSI_ProcessCmd_hmsc->scsi_blk_len) < 0)
+		{
+			SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						   SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						   ILLEGAL_REQUEST,
+						   INVALID_CDB);
+			SCSI_ProcessCmd_callback(-1); /* error */
+			return;
+		}
+
+		/* cases 4,5 : Hi <> Dn */
+		if (SCSI_ProcessCmd_hmsc->cbw.dDataLength != (uint32_t)(SCSI_ProcessCmd_hmsc->scsi_blk_len * SCSI_ProcessCmd_hmsc->scsi_blk_size))
+		{
+		  SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						 SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						 ILLEGAL_REQUEST,
+						 INVALID_CDB);
+		  SCSI_ProcessCmd_callback(-1);
+		  return;
+		}
+
+		if (DownstreamInterface_BeginRead(SCSI_Read10BeginCallback,
+										  SCSI_ProcessCmd_hmsc->scsi_blk_addr,
+										  SCSI_ProcessCmd_hmsc->scsi_blk_len,
+										  SCSI_ProcessCmd_hmsc->cbw.dDataLength) != HAL_OK)
+		{
+			SCSI_Read10BeginCallback(HAL_ERROR);
+		}
+		return;
+	}
+
+	//hmsc->bot_state is already USBD_BOT_DATA_IN
+	DownstreamInterface_GetStreamDataPacket(SCSI_Read10ReplyCallback);
 }
 
+
+void SCSI_Read10BeginCallback(HAL_StatusTypeDef result)
+{
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+	SCSI_ProcessCmd_hmsc->bot_state = USBD_BOT_DATA_IN;
+
+	if (DownstreamInterface_GetStreamDataPacket(SCSI_Read10ReplyCallback) != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+	}
+}
+
+
+void SCSI_Read10ReplyCallback(HAL_StatusTypeDef result,
+							  DownstreamPacketTypeDef* downstreamPacket)
+{
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+	                   HARDWARE_ERROR,
+	                   UNRECOVERED_READ_ERROR);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	SCSI_ProcessCmd_hmsc->bot_packet = downstreamPacket;
+	SCSI_ProcessCmd_hmsc->bot_data = downstreamPacket->Data;
+	USBD_LL_Transmit (SCSI_ProcessCmd_pdev,
+					  MSC_EPIN_ADDR,
+					  SCSI_ProcessCmd_hmsc->bot_data,
+					  downstreamPacket->Length);
+
+	/* case 6 : Hi = Di */
+	SCSI_ProcessCmd_hmsc->csw.dDataResidue -= downstreamPacket->Length;
+
+	if (SCSI_ProcessCmd_hmsc->csw.dDataResidue == 0)
+	{
+		SCSI_ProcessCmd_hmsc->bot_state = USBD_BOT_LAST_DATA_IN;
+	}
+	SCSI_ProcessCmd_callback(0);
+}
+
+
 /**
 * @brief  SCSI_Write10
 *         Process Write10 command
@@ -521,86 +666,139 @@ static int8_t SCSI_Read10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *para
 * @retval status
 */
 
-static int8_t SCSI_Write10 (USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *params)
+static void SCSI_Write10(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData; 
-  
-  if (hmsc->bot_state == USBD_BOT_IDLE) /* Idle */
-  {
-    
-    /* case 8 : Hi <> Do */
-    
-    if ((hmsc->cbw.bmFlags & 0x80) == 0x80)
-    {
-      SCSI_SenseCode(pdev,
-                     hmsc->cbw.bLUN, 
-                     ILLEGAL_REQUEST, 
-                     INVALID_CDB);
-      return -1;
-    }
-    
-    /* Check whether Media is ready */
-    if(((USBD_StorageTypeDef *)pdev->pUserData)->IsReady(lun) !=0 )
-    {
-      SCSI_SenseCode(pdev,
-                     lun,
-                     NOT_READY, 
-                     MEDIUM_NOT_PRESENT);
-      return -1;
-    } 
-    
-    /* Check If media is write-protected */
-    if(((USBD_StorageTypeDef *)pdev->pUserData)->IsWriteProtected(lun) !=0 )
-    {
-      SCSI_SenseCode(pdev,
-                     lun,
-                     NOT_READY, 
-                     WRITE_PROTECTED);
-      return -1;
-    } 
-    
-    
-    hmsc->scsi_blk_addr = (params[2] << 24) | \
-      (params[3] << 16) | \
-        (params[4] <<  8) | \
-          params[5];
-    hmsc->scsi_blk_len = (params[7] <<  8) | \
-      params[8];  
-    
-    /* check if LBA address is in the right range */
-    if(SCSI_CheckAddressRange(pdev,
-                              lun,
-                              hmsc->scsi_blk_addr,
-                              hmsc->scsi_blk_len) < 0)
-    {
-      return -1; /* error */      
-    }
-    
-    hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
-    hmsc->scsi_blk_len  *= hmsc->scsi_blk_size;
-    
-    /* cases 3,11,13 : Hn,Ho <> D0 */
-    if (hmsc->cbw.dDataLength != hmsc->scsi_blk_len)
-    {
-      SCSI_SenseCode(pdev,
-                     hmsc->cbw.bLUN, 
-                     ILLEGAL_REQUEST, 
-                     INVALID_CDB);
-      return -1;
-    }
-    
-    /* Prepare EP to receive first data packet */
-    hmsc->bot_state = USBD_BOT_DATA_OUT;  
-    USBD_LL_PrepareReceive (pdev,
-                      MSC_EPOUT_ADDR,
-                      hmsc->bot_data, 
-                      MIN (hmsc->scsi_blk_len, MSC_MEDIA_PACKET));  
-  }
-  else /* Write Process ongoing */
-  {
-    return SCSI_ProcessWrite(pdev, lun);
-  }
-  return 0;
+	uint32_t dataLength;
+
+	if (SCSI_ProcessCmd_hmsc->bot_state == USBD_BOT_IDLE) /* Idle */
+	{
+		/* case 8 : Hi <> Do */
+		if ((SCSI_ProcessCmd_hmsc->cbw.bmFlags & 0x80) == 0x80)
+		{
+			SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						   SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						   ILLEGAL_REQUEST,
+						   INVALID_CDB);
+			SCSI_ProcessCmd_callback(-1);
+			return;
+		}
+
+		SCSI_ProcessCmd_hmsc->scsi_blk_addr = (SCSI_ProcessCmd_params[2] << 24) | \
+											  (SCSI_ProcessCmd_params[3] << 16) | \
+											  (SCSI_ProcessCmd_params[4] <<  8) | \
+											  SCSI_ProcessCmd_params[5];
+		SCSI_ProcessCmd_hmsc->scsi_blk_len = (SCSI_ProcessCmd_params[7] <<  8) | \
+											  SCSI_ProcessCmd_params[8];
+
+		if (SCSI_CheckAddressRange(SCSI_ProcessCmd_hmsc->scsi_blk_addr,
+								   SCSI_ProcessCmd_hmsc->scsi_blk_len) < 0)
+		{
+			SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						   SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						   ILLEGAL_REQUEST,
+						   INVALID_CDB);
+			SCSI_ProcessCmd_callback(-1); /* error */
+			return;
+		}
+
+		/* cases 3,11,13 : Hn,Ho <> D0 */
+		if (SCSI_ProcessCmd_hmsc->cbw.dDataLength != (uint32_t)(SCSI_ProcessCmd_hmsc->scsi_blk_len * SCSI_ProcessCmd_hmsc->scsi_blk_size))
+		{
+			SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+						   SCSI_ProcessCmd_hmsc->cbw.bLUN,
+						   ILLEGAL_REQUEST,
+						   INVALID_CDB);
+			SCSI_ProcessCmd_callback(-1);
+			return;
+		}
+
+		if (DownstreamInterface_BeginWrite(SCSI_Write10BeginCallback,
+										   SCSI_ProcessCmd_hmsc->scsi_blk_addr,
+										   SCSI_ProcessCmd_hmsc->scsi_blk_len) != HAL_OK)
+		{
+			SCSI_Write10BeginCallback(HAL_ERROR);
+		}
+		return;
+	}
+
+
+	//hmsc->bot_state is already USBD_BOT_DATA_OUT
+	dataLength = MIN(SCSI_ProcessCmd_hmsc->csw.dDataResidue, MSC_MEDIA_PACKET);
+	if (DownstreamInterface_PutStreamDataPacket(SCSI_ProcessCmd_hmsc->bot_packet,
+												dataLength) != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   HARDWARE_ERROR,
+					   WRITE_FAULT);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	SCSI_ProcessCmd_hmsc->csw.dDataResidue -= dataLength;
+	if (SCSI_ProcessCmd_hmsc->csw.dDataResidue == 0)
+	{
+		MSC_BOT_SendCSW (SCSI_ProcessCmd_pdev, USBD_CSW_CMD_PASSED);
+		SCSI_ProcessCmd_callback(0);
+		return;
+	}
+
+	/* Prepare EP to Receive next packet */
+	if (Downstream_GetFreePacket(SCSI_Write10FreePacketCallback) != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+	}
+}
+
+
+void SCSI_Write10BeginCallback(HAL_StatusTypeDef result)
+{
+	if (result == HAL_BUSY)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   WRITE_PROTECTED);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+	if (result != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+		return;
+	}
+
+	/* Prepare EP to receive first data packet */
+	SCSI_ProcessCmd_hmsc->bot_state = USBD_BOT_DATA_OUT;
+	if (Downstream_GetFreePacket(SCSI_Write10FreePacketCallback) != HAL_OK)
+	{
+		SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+					   SCSI_ProcessCmd_lun,
+					   NOT_READY,
+					   MEDIUM_NOT_PRESENT);
+		SCSI_ProcessCmd_callback(-1);
+	}
+}
+
+
+void SCSI_Write10FreePacketCallback(DownstreamPacketTypeDef* freePacket)
+{
+	SCSI_ProcessCmd_hmsc->bot_packet = freePacket;
+	SCSI_ProcessCmd_hmsc->bot_data = freePacket->Data;
+
+	USBD_LL_PrepareReceive (SCSI_ProcessCmd_pdev,
+							MSC_EPOUT_ADDR,
+							SCSI_ProcessCmd_hmsc->bot_data,
+							MIN(SCSI_ProcessCmd_hmsc->csw.dDataResidue, MSC_MEDIA_PACKET));
+	SCSI_ProcessCmd_callback(0);		//Report eventual success!
 }
 
 
@@ -612,28 +810,26 @@ static int8_t SCSI_Write10 (USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *pa
 * @retval status
 */
 
-static int8_t SCSI_Verify10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *params)
+static void SCSI_Verify10(void)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData; 
-  
-  if ((params[1]& 0x02) == 0x02) 
+  if ((SCSI_ProcessCmd_params[1]& 0x02) == 0x02)
   {
-    SCSI_SenseCode (pdev,
-                    lun, 
+    SCSI_SenseCode (SCSI_ProcessCmd_pdev,
+    				SCSI_ProcessCmd_lun,
                     ILLEGAL_REQUEST, 
-                    INVALID_FIELED_IN_COMMAND);
-    return -1; /* Error, Verify Mode Not supported*/
+                    INVALID_FIELD_IN_COMMAND);
+    SCSI_ProcessCmd_callback(-1);		/* Error, Verify Mode Not supported*/
+    return;
   }
   
-  if(SCSI_CheckAddressRange(pdev,
-                            lun, 
-                            hmsc->scsi_blk_addr, 
-                            hmsc->scsi_blk_len) < 0)
+  if(SCSI_CheckAddressRange(SCSI_ProcessCmd_hmsc->scsi_blk_addr,
+							SCSI_ProcessCmd_hmsc->scsi_blk_len) < 0)
   {
-    return -1; /* error */      
+	  SCSI_ProcessCmd_callback(-1); /* error */
+	  return;
   }
-  hmsc->bot_data_length = 0;
-  return 0;
+  SCSI_ProcessCmd_hmsc->bot_data_length = 0;
+  SCSI_ProcessCmd_callback(0);
 }
 
 /**
@@ -644,14 +840,12 @@ static int8_t SCSI_Verify10(USBD_HandleTypeDef  *pdev, uint8_t lun , uint8_t *pa
 * @param  blk_nbr: number of block to be processed
 * @retval status
 */
-static int8_t SCSI_CheckAddressRange (USBD_HandleTypeDef  *pdev, uint8_t lun , uint32_t blk_offset , uint16_t blk_nbr)
+static int8_t SCSI_CheckAddressRange (uint32_t blk_offset , uint16_t blk_nbr)
 {
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData; 
-  
-  if ((blk_offset + blk_nbr) > hmsc->scsi_blk_nbr )
+  if ((blk_offset + blk_nbr) > SCSI_ProcessCmd_hmsc->scsi_blk_nbr )
   {
-    SCSI_SenseCode(pdev,
-                   lun, 
+    SCSI_SenseCode(SCSI_ProcessCmd_pdev,
+    			   SCSI_ProcessCmd_lun,
                    ILLEGAL_REQUEST, 
                    ADDRESS_OUT_OF_RANGE);
     return -1;
@@ -659,110 +853,6 @@ static int8_t SCSI_CheckAddressRange (USBD_HandleTypeDef  *pdev, uint8_t lun , u
   return 0;
 }
 
-/**
-* @brief  SCSI_ProcessRead
-*         Handle Read Process
-* @param  lun: Logical unit number
-* @retval status
-*/
-static int8_t SCSI_ProcessRead (USBD_HandleTypeDef  *pdev, uint8_t lun)
-{
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*)pdev->pClassData;   
-  uint32_t len;
-  
-  len = MIN(hmsc->scsi_blk_len , MSC_MEDIA_PACKET); 
-  
-  if( ((USBD_StorageTypeDef *)pdev->pUserData)->Read(lun ,
-                              hmsc->bot_data, 
-                              hmsc->scsi_blk_addr / hmsc->scsi_blk_size, 
-                              len / hmsc->scsi_blk_size) < 0)
-  {
-    
-    SCSI_SenseCode(pdev,
-                   lun, 
-                   HARDWARE_ERROR, 
-                   UNRECOVERED_READ_ERROR);
-    return -1; 
-  }
-  
-  
-  USBD_LL_Transmit (pdev, 
-             MSC_EPIN_ADDR,
-             hmsc->bot_data,
-             len);
-  
-  
-  hmsc->scsi_blk_addr   += len; 
-  hmsc->scsi_blk_len    -= len;  
-  
-  /* case 6 : Hi = Di */
-  hmsc->csw.dDataResidue -= len;
-  
-  if (hmsc->scsi_blk_len == 0)
-  {
-    hmsc->bot_state = USBD_BOT_LAST_DATA_IN;
-  }
-  return 0;
-}
-
-/**
-* @brief  SCSI_ProcessWrite
-*         Handle Write Process
-* @param  lun: Logical unit number
-* @retval status
-*/
-
-static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef  *pdev, uint8_t lun)
-{
-  uint32_t len;
-  USBD_MSC_BOT_HandleTypeDef  *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData; 
-  
-  len = MIN(hmsc->scsi_blk_len , MSC_MEDIA_PACKET); 
-  
-  if(((USBD_StorageTypeDef *)pdev->pUserData)->Write(lun ,
-                              hmsc->bot_data, 
-                              hmsc->scsi_blk_addr / hmsc->scsi_blk_size, 
-                              len / hmsc->scsi_blk_size) < 0)
-  {
-    SCSI_SenseCode(pdev,
-                   lun, 
-                   HARDWARE_ERROR, 
-                   WRITE_FAULT);     
-    return -1; 
-  }
-  
-  
-  hmsc->scsi_blk_addr  += len; 
-  hmsc->scsi_blk_len   -= len; 
-  
-  /* case 12 : Ho = Do */
-  hmsc->csw.dDataResidue -= len;
-  
-  if (hmsc->scsi_blk_len == 0)
-  {
-    MSC_BOT_SendCSW (pdev, USBD_CSW_CMD_PASSED);
-  }
-  else
-  {
-    /* Prepare EP to Receive next packet */
-    USBD_LL_PrepareReceive (pdev,
-                            MSC_EPOUT_ADDR,
-                            hmsc->bot_data, 
-                            MIN (hmsc->scsi_blk_len, MSC_MEDIA_PACKET)); 
-  }
-  
-  return 0;
-}
-/**
-  * @}
-  */ 
-
-
-/**
-  * @}
-  */ 
-
-
 /**
   * @}
   */ 
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
index f98d011..230b513 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
@@ -34,7 +34,7 @@
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include "usbd_conf.h"
+#include <usbd_config.h>
 #include "usbd_def.h"
 #include "usbd_ioreq.h"
 #include "usbd_ctlreq.h"
@@ -80,7 +80,7 @@
 /** @defgroup USBD_CORE_Exported_Variables
   * @{
   */ 
-#define USBD_SOF          USBD_LL_SOF
+
 /**
   * @}
   */ 
@@ -98,21 +98,24 @@ USBD_StatusTypeDef USBD_RunTestMode (USBD_HandleTypeDef  *pdev);
 USBD_StatusTypeDef USBD_SetClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx);
 USBD_StatusTypeDef USBD_ClrClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx);
 
-USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup);
-USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
-USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
+USBD_StatusTypeDef USBD_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup);
+USBD_StatusTypeDef USBD_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
+USBD_StatusTypeDef USBD_DataInStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
+
+USBD_StatusTypeDef USBD_Reset(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed);
+USBD_StatusTypeDef USBD_Suspend(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_Resume(USBD_HandleTypeDef  *pdev);
+
+USBD_StatusTypeDef USBD_SOF(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
+USBD_StatusTypeDef USBD_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
 
-USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef  *pdev);
-USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed);
-USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef  *pdev);
-USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_DevConnected(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_DevDisconnected(USBD_HandleTypeDef  *pdev);
 
-USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef  *pdev);
-USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
-USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
+USBD_StatusTypeDef USBD_BufferFreed(USBD_HandleTypeDef *pdev);
 
-USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef  *pdev);
-USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef  *pdev);
 
 /* USBD Low Level Driver */
 USBD_StatusTypeDef  USBD_LL_Init (USBD_HandleTypeDef *pdev);
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
index 28a1d5e..75f7049 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
@@ -34,7 +34,7 @@
 #endif
 
 /* Includes ------------------------------------------------------------------*/
-#include "usbd_conf.h"
+#include <usbd_config.h>
 
 /** @addtogroup STM32_USBD_DEVICE_LIBRARY
   * @{
@@ -169,7 +169,9 @@ typedef struct _Device_cb
   uint8_t  (*DataOut)          (struct _USBD_HandleTypeDef *pdev , uint8_t epnum); 
   uint8_t  (*SOF)              (struct _USBD_HandleTypeDef *pdev); 
   uint8_t  (*IsoINIncomplete)  (struct _USBD_HandleTypeDef *pdev , uint8_t epnum); 
-  uint8_t  (*IsoOUTIncomplete) (struct _USBD_HandleTypeDef *pdev , uint8_t epnum);   
+  uint8_t  (*IsoOUTIncomplete) (struct _USBD_HandleTypeDef *pdev , uint8_t epnum);
+
+  uint8_t	(*FreeDataBuffer)  (struct _USBD_HandleTypeDef *pdev);
 
   uint8_t  *(*GetHSConfigDescriptor)(uint16_t *length); 
   uint8_t  *(*GetFSConfigDescriptor)(uint16_t *length);   
diff --git a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
index 1e6d766..0a8890f 100755
--- a/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
+++ b/Upstream/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
@@ -260,7 +260,7 @@ USBD_StatusTypeDef USBD_ClrClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup)
+USBD_StatusTypeDef USBD_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup)
 {
 
   USBD_ParseSetupRequest(&pdev->request, psetup);
@@ -296,7 +296,7 @@ USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup)
 * @param  epnum: endpoint index
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata)
+USBD_StatusTypeDef USBD_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata)
 {
   USBD_EndpointTypeDef    *pep;
   
@@ -340,7 +340,7 @@ USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum
 * @param  epnum: endpoint index
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
+USBD_StatusTypeDef USBD_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
 {
   USBD_EndpointTypeDef    *pep;
     
@@ -394,13 +394,13 @@ USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum,
 }
 
 /**
-* @brief  USBD_LL_Reset 
+* @brief  USBD_Reset
 *         Handle Reset event
 * @param  pdev: device instance
 * @retval status
 */
 
-USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_Reset(USBD_HandleTypeDef  *pdev)
 {
   /* Open EP0 OUT */
   USBD_LL_OpenEP(pdev,
@@ -431,12 +431,12 @@ USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef  *pdev)
 
 
 /**
-* @brief  USBD_LL_Reset 
+* @brief  USBD_SetSpeed
 *         Handle Reset event
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed)
+USBD_StatusTypeDef USBD_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed)
 {
   pdev->dev_speed = speed;
   return USBD_OK;
@@ -449,7 +449,7 @@ USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef
 * @retval status
 */
 
-USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_Suspend(USBD_HandleTypeDef  *pdev)
 {
   pdev->dev_old_state =  pdev->dev_state;
   pdev->dev_state  = USBD_STATE_SUSPENDED;
@@ -463,7 +463,7 @@ USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef  *pdev)
 * @retval status
 */
 
-USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_Resume(USBD_HandleTypeDef  *pdev)
 {
   pdev->dev_state = pdev->dev_old_state;  
   return USBD_OK;
@@ -476,7 +476,7 @@ USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef  *pdev)
 * @retval status
 */
 
-USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_SOF(USBD_HandleTypeDef  *pdev)
 {
   if(pdev->dev_state == USBD_STATE_CONFIGURED)
   {
@@ -494,7 +494,7 @@ USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef  *pdev)
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
+USBD_StatusTypeDef USBD_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
 {
   return USBD_OK;
 }
@@ -505,7 +505,7 @@ USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t ep
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
+USBD_StatusTypeDef USBD_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
 {
   return USBD_OK;
 }
@@ -516,7 +516,7 @@ USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t e
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_DevConnected(USBD_HandleTypeDef  *pdev)
 {
   return USBD_OK;
 }
@@ -527,7 +527,7 @@ USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef  *pdev)
 * @param  pdev: device instance
 * @retval status
 */
-USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef  *pdev)
+USBD_StatusTypeDef USBD_DevDisconnected(USBD_HandleTypeDef  *pdev)
 {
   /* Free Class Resources */
   pdev->dev_state = USBD_STATE_DEFAULT;
@@ -535,6 +535,12 @@ USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef  *pdev)
    
   return USBD_OK;
 }
+
+USBD_StatusTypeDef USBD_BufferFreed(USBD_HandleTypeDef *pdev)
+{
+	pdev->pClass->FreeDataBuffer(pdev);
+	return USBD_OK;
+}
 /**
 * @}
 */ 
diff --git a/Upstream/Src/downstream_interface_msc.c b/Upstream/Src/downstream_interface_msc.c
new file mode 100644
index 0000000..4e7d347
--- /dev/null
+++ b/Upstream/Src/downstream_interface_msc.c
@@ -0,0 +1,228 @@
+/*
+ * downstream_interface_msc.c
+ *
+ *  Created on: 4/07/2015
+ *      Author: Robert Fisk
+ */
+
+
+#include "stm32f4xx_hal.h"
+#include "downstream_interface_msc.h"
+#include "downstream_interface_def.h"
+#include "downstream_spi.h"
+
+
+//Stuff we need to save for our callbacks to use:
+DownstreamInterfaceMSCCallbackTypeDef 			TestReadyCallback;
+DownstreamInterfaceMSCCallbackUintPacketTypeDef	GetCapacityCallback;
+DownstreamInterfaceMSCCallbackPacketTypeDef		GetStreamDataCallback;
+uint64_t										BlockStart;
+uint32_t										BlockCount;
+uint32_t										ByteCount;
+DownstreamPacketTypeDef*						ReadStreamPacket;
+
+
+static void DownstreamInterface_TestReadyReplyCallback(DownstreamPacketTypeDef* replyPacket);
+static void DownstreamInterface_GetCapacityReplyCallback(DownstreamPacketTypeDef* replyPacket);
+static void DownstreamInterface_GetStreamDataPacketCallback(DownstreamPacketTypeDef* replyPacket);
+static void DownstreamInterface_BeginWriteReplyCallback(DownstreamPacketTypeDef* replyPacket);
+
+
+
+HAL_StatusTypeDef DownstreamInterface_TestReady(DownstreamInterfaceMSCCallbackTypeDef callback)
+{
+	DownstreamPacketTypeDef* freePacket;
+	HAL_StatusTypeDef tempResult;
+
+	TestReadyCallback = callback;
+	freePacket = Downstream_GetFreePacketImmediately();
+
+	freePacket->Length = DOWNSTREAM_PACKET_HEADER_LEN;
+	freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
+	freePacket->Command = COMMAND_MSC_TEST_UNIT_READY;
+	tempResult = Downstream_SendPacket(freePacket);
+	if (tempResult != HAL_OK)
+	{
+		return tempResult;
+	}
+	return Downstream_GetPacket(DownstreamInterface_TestReadyReplyCallback);
+}
+
+void DownstreamInterface_TestReadyReplyCallback(DownstreamPacketTypeDef* replyPacket)
+{
+	if ((replyPacket->Length != (DOWNSTREAM_PACKET_HEADER_LEN + 1)) ||
+		(replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) ||
+		(replyPacket->Data[0] != HAL_OK))
+	{
+		Downstream_ReleasePacket(replyPacket);
+		TestReadyCallback(HAL_ERROR);
+	}
+	else
+	{
+		Downstream_ReleasePacket(replyPacket);
+		TestReadyCallback(HAL_OK);
+	}
+}
+
+
+
+HAL_StatusTypeDef DownstreamInterface_GetCapacity(DownstreamInterfaceMSCCallbackUintPacketTypeDef callback)
+{
+	DownstreamPacketTypeDef* freePacket;
+	HAL_StatusTypeDef tempResult;
+
+	GetCapacityCallback = callback;
+	freePacket = Downstream_GetFreePacketImmediately();
+
+	freePacket->Length = DOWNSTREAM_PACKET_HEADER_LEN;
+	freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
+	freePacket->Command = COMMAND_MSC_GET_CAPACITY;
+	tempResult = Downstream_SendPacket(freePacket);
+	if (tempResult != HAL_OK)
+	{
+		return tempResult;
+	}
+	return Downstream_GetPacket(DownstreamInterface_GetCapacityReplyCallback);
+}
+
+void DownstreamInterface_GetCapacityReplyCallback(DownstreamPacketTypeDef* replyPacket)
+{
+	uint32_t uint[2];
+
+	if ((replyPacket->Length != (DOWNSTREAM_PACKET_HEADER_LEN + 8) ||
+	    (replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG)))
+	{
+		GetCapacityCallback(HAL_ERROR, NULL, NULL);
+	}
+	uint[0] = (uint32_t)(replyPacket->Data[0]);
+	uint[1] = (uint32_t)(replyPacket->Data[1]);
+	GetCapacityCallback(HAL_OK, uint, replyPacket);		//usb_msc_scsi will use this packet, so don't release now
+}
+
+
+
+
+HAL_StatusTypeDef DownstreamInterface_BeginRead(DownstreamInterfaceMSCCallbackTypeDef callback,
+												uint64_t readBlockStart,
+												uint32_t readBlockCount,
+												uint32_t readByteCount)
+{
+	DownstreamPacketTypeDef* freePacket;
+	HAL_StatusTypeDef tempResult;
+	uint64_t* workDammit;
+	uint32_t* prettyPlease;
+
+	ReadStreamPacket = NULL;			//Prepare for GetStreamDataPacket's use
+
+	TestReadyCallback = callback;
+	BlockStart = readBlockStart;
+	BlockCount = readBlockCount;
+	ByteCount = readByteCount;
+	freePacket = Downstream_GetFreePacketImmediately();
+
+	freePacket->Length = DOWNSTREAM_PACKET_HEADER_LEN + (4 * 3);
+	freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
+	freePacket->Command = COMMAND_MSC_BEGIN_READ;
+	workDammit = (uint64_t*)&(freePacket->Data[0]);
+	*workDammit = BlockStart;
+	prettyPlease = (uint32_t*)&(freePacket->Data[8]);
+	*prettyPlease = BlockCount;
+	tempResult = Downstream_SendPacket(freePacket);
+	if (tempResult != HAL_OK)
+	{
+		TestReadyCallback(tempResult);
+	}
+	return Downstream_GetPacket(DownstreamInterface_TestReadyReplyCallback);	//Re-use TestReadyReplyCallback because it does exactly what we want!
+}
+
+
+HAL_StatusTypeDef DownstreamInterface_GetStreamDataPacket(DownstreamInterfaceMSCCallbackPacketTypeDef callback)
+{
+	GetStreamDataCallback = callback;
+
+	//We have a callback address. Do we have a stored packet?
+	if (ReadStreamPacket)
+	{
+		DownstreamInterface_GetStreamDataPacketCallback(ReadStreamPacket);	//Send it now!
+		ReadStreamPacket = NULL;
+		GetStreamDataCallback = NULL;		//We have used up our callback, so mark it empty.
+	}
+	return Downstream_GetPacket(DownstreamInterface_GetStreamDataPacketCallback);
+}
+
+void DownstreamInterface_GetStreamDataPacketCallback(DownstreamPacketTypeDef* replyPacket)
+{
+	if (GetStreamDataCallback == NULL)
+	{
+		ReadStreamPacket = replyPacket;		//We used up our callback already, so save this one for later.
+		return;
+	}
+
+	if (((replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) == 0) ||		//Any 'command' reply (as opposed to 'data' reply) is an automatic fail here
+		 (replyPacket->Length <= DOWNSTREAM_PACKET_HEADER_LEN) ||			//Should be at least one data byte in the reply.
+		 (replyPacket->Length > ByteCount))
+	{
+		GetStreamDataCallback(HAL_ERROR, NULL);
+	}
+	else
+	{
+		ByteCount -= replyPacket->Length;
+		GetStreamDataCallback(HAL_OK, replyPacket);	//usb_msc_scsi will use this packet, so don't release now
+	}
+}
+
+
+HAL_StatusTypeDef DownstreamInterface_BeginWrite(DownstreamInterfaceMSCCallbackTypeDef callback,
+												 uint64_t readBlockStart,
+												 uint32_t readBlockCount)
+{
+	DownstreamPacketTypeDef* freePacket;
+	HAL_StatusTypeDef tempResult;
+	uint64_t* workDammit;
+	uint32_t* prettyPlease;
+
+	TestReadyCallback = callback;
+	BlockStart = readBlockStart;
+	BlockCount = readBlockCount;
+	freePacket = Downstream_GetFreePacketImmediately();
+
+	freePacket->Length = DOWNSTREAM_PACKET_HEADER_LEN + (4 * 3);
+	freePacket->CommandClass = COMMAND_CLASS_MASS_STORAGE;
+	freePacket->Command = COMMAND_MSC_BEGIN_WRITE;
+	workDammit = (uint64_t*)&(freePacket->Data[0]);
+	*workDammit = BlockStart;
+	prettyPlease = (uint32_t*)&(freePacket->Data[8]);
+	*prettyPlease = BlockCount;
+	tempResult = Downstream_SendPacket(freePacket);
+	if (tempResult != HAL_OK)
+	{
+		TestReadyCallback(tempResult);
+	}
+	return Downstream_GetPacket(DownstreamInterface_BeginWriteReplyCallback);
+}
+
+void DownstreamInterface_BeginWriteReplyCallback(DownstreamPacketTypeDef* replyPacket)
+{
+	if ((replyPacket->Length != (DOWNSTREAM_PACKET_HEADER_LEN + 1)) ||
+		(replyPacket->CommandClass & COMMAND_CLASS_DATA_FLAG) ||
+		((replyPacket->Data[0] != HAL_OK) && (replyPacket->Data[0] != HAL_BUSY)))
+	{
+		Downstream_ReleasePacket(replyPacket);
+		TestReadyCallback(HAL_ERROR);
+	}
+	else
+	{
+		Downstream_ReleasePacket(replyPacket);
+		TestReadyCallback(replyPacket->Data[0]);
+	}
+}
+
+
+HAL_StatusTypeDef DownstreamInterface_PutStreamDataPacket(DownstreamPacketTypeDef* packetToSend,
+														  uint32_t dataLength)
+{
+	packetToSend->Length = dataLength + DOWNSTREAM_PACKET_HEADER_LEN;
+	packetToSend->CommandClass = COMMAND_CLASS_MASS_STORAGE | COMMAND_CLASS_DATA_FLAG;
+	packetToSend->Command = COMMAND_MSC_BEGIN_WRITE;
+	return Downstream_SendPacket(packetToSend);
+}
diff --git a/Upstream/Src/downstream_spi.c b/Upstream/Src/downstream_spi.c
new file mode 100644
index 0000000..9fc81bc
--- /dev/null
+++ b/Upstream/Src/downstream_spi.c
@@ -0,0 +1,429 @@
+/*
+ * downstream_spi.c
+ *
+ *  Created on: 21/06/2015
+ *      Author: Robert Fisk
+ */
+
+#include <downstream_spi.h>
+#include "downstream_interface_def.h"
+#include "stm32f4xx_hal.h"
+#include "usbd_def.h"
+#include "board_config.h"
+
+
+
+SPI_HandleTypeDef			hspi1;
+DownstreamPacketTypeDef		DownstreamPacket0;
+DownstreamPacketTypeDef		DownstreamPacket1;
+DownstreamPacketTypeDef*	CurrentWorkingPacket;
+DownstreamPacketTypeDef*	NextTxPacket;			//Indicates we have a pending TX packet
+
+InterfaceStateTypeDef				DownstreamInterfaceState;
+FreePacketCallbackTypeDef			PendingFreePacketCallback;	//Indicates someone is waiting for a packet buffer to become available
+SpiPacketReceivedCallbackTypeDef	ReceivePacketCallback;		//Indicates someone is waiting for a received packet
+
+uint8_t						SentCommandClass;
+uint8_t						SentCommand;
+
+
+static void SPI1_Init(void);
+static HAL_StatusTypeDef Downstream_CheckBeginPacketReception(void);
+static void Downstream_BeginPacketReception(DownstreamPacketTypeDef* freePacket);
+
+
+
+void Downstream_InitInterface(void)
+{
+	DownstreamInterfaceState = INTERFACE_STATE_RESET;
+
+	SPI1_Init();
+	DownstreamPacket0.Busy = NOT_BUSY;
+	DownstreamPacket1.Busy = NOT_BUSY;
+	NextTxPacket = NULL;
+	PendingFreePacketCallback = NULL;
+	ReceivePacketCallback = NULL;
+
+	//Todo: check connection to downstream, await client USB insertion
+
+	while (!DOWNSTREAM_TX_OK_ACTIVE);
+	DownstreamInterfaceState = INTERFACE_STATE_IDLE;
+}
+
+
+void SPI1_Init(void)
+{
+	hspi1.Instance = SPI1;
+	hspi1.State = HAL_SPI_STATE_RESET;
+	hspi1.Init.Mode = SPI_MODE_MASTER;
+	hspi1.Init.Direction = SPI_DIRECTION_2LINES;
+	hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
+	hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
+	hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
+	hspi1.Init.NSS = SPI_NSS_SOFT;
+	hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;	//42MHz APB2 / 32 = 1.3Mbaud
+	hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
+	hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
+	hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_ENABLED;
+	hspi1.Init.CRCPolynomial = SPI_CRC_DEFAULTPOLYNOMIAL;
+	HAL_SPI_Init(&hspi1);
+}
+
+
+
+//Used by USB interface classes, and by our internal RX code.
+HAL_StatusTypeDef Downstream_GetFreePacket(FreePacketCallbackTypeDef callback)
+{
+	//Sanity checks
+	if 	((DownstreamInterfaceState < INTERFACE_STATE_IDLE) ||
+		 (DownstreamInterfaceState > INTERFACE_STATE_RX_PACKET))
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	//Do we already have a queued callback?
+	if (PendingFreePacketCallback != NULL)
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	//Check if there is a free buffer now
+	if (DownstreamPacket0.Busy == NOT_BUSY)
+	{
+		DownstreamPacket0.Busy = BUSY;
+		callback(&DownstreamPacket0);
+		return HAL_OK;
+	}
+	if (DownstreamPacket1.Busy == NOT_BUSY)
+	{
+		DownstreamPacket1.Busy = BUSY;
+		callback(&DownstreamPacket1);
+		return HAL_OK;
+	}
+
+	//Otherwise save requested address for when a buffer becomes free in the future
+	PendingFreePacketCallback = callback;
+	return HAL_OK;
+}
+
+
+DownstreamPacketTypeDef* Downstream_GetFreePacketImmediately(void)
+{
+	//Sanity checks
+	if 	((DownstreamInterfaceState < INTERFACE_STATE_IDLE) ||
+		 (DownstreamInterfaceState > INTERFACE_STATE_RX_PACKET))
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	//We are expecting a free buffer now
+	if (DownstreamPacket0.Busy == NOT_BUSY)
+	{
+		DownstreamPacket0.Busy = BUSY;
+		return &DownstreamPacket0;
+	}
+	if (DownstreamPacket1.Busy == NOT_BUSY)
+	{
+		DownstreamPacket1.Busy = BUSY;
+		return &DownstreamPacket1;
+	}
+
+	//Should not happen:
+	SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+}
+
+
+//Used by USB interface classes, and by our internal RX code.
+void Downstream_ReleasePacket(DownstreamPacketTypeDef* packetToRelease)
+{
+	if (PendingFreePacketCallback != NULL)
+	{
+		PendingFreePacketCallback(packetToRelease);
+		PendingFreePacketCallback = NULL;
+	}
+	else
+	{
+		packetToRelease->Busy = NOT_BUSY;
+	}
+}
+
+
+//Used by USB interface classes only.
+//OK to call when still transmitting another packet.
+//Not OK to call when receiving or waiting for downstream reply.
+HAL_StatusTypeDef Downstream_SendPacket(DownstreamPacketTypeDef* packetToWrite)
+{
+	//Sanity checks
+	if ((packetToWrite != &DownstreamPacket0) &&
+		(packetToWrite != &DownstreamPacket1))
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+	if ((packetToWrite->Busy != BUSY) ||
+		(packetToWrite->Length < DOWNSTREAM_PACKET_LEN_MIN) ||
+		(packetToWrite->Length > DOWNSTREAM_PACKET_LEN))
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	//Cancel any outstanding receive request
+	ReceivePacketCallback = NULL;
+
+	switch (DownstreamInterfaceState)
+	{
+	case INTERFACE_STATE_TX_SIZE_WAIT:
+	case INTERFACE_STATE_TX_SIZE:
+	case INTERFACE_STATE_TX_PACKET_WAIT:
+	case INTERFACE_STATE_TX_PACKET:
+		if (NextTxPacket != NULL)
+		{
+			SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+		}
+		NextTxPacket = packetToWrite;
+		break;
+
+	case INTERFACE_STATE_RX_SIZE_WAIT:
+	case INTERFACE_STATE_RX_SIZE:
+	case INTERFACE_STATE_RX_PACKET_WAIT:
+	case INTERFACE_STATE_RX_PACKET:
+		//We can't let the size/packet sequence get out of sync.
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+
+	case INTERFACE_STATE_IDLE:
+		DownstreamInterfaceState = INTERFACE_STATE_TX_SIZE_WAIT;
+		CurrentWorkingPacket = packetToWrite;
+		SentCommandClass = CurrentWorkingPacket->CommandClass;
+		SentCommand = CurrentWorkingPacket->Command;
+		if (DOWNSTREAM_TX_OK_ACTIVE)
+		{
+			Downstream_TxOkInterrupt();		//Manually trigger edge interrupt processing if the line was already asserted
+		}
+		break;
+
+	default:
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+	return HAL_OK;
+}
+
+
+
+//Called at the end of the SPI TX DMA transfer,
+//at DMA2 interrupt priority. Assume *hspi points to our hspi1.
+void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
+{
+	SPI1_NSS_DEASSERT;
+
+	if ((DownstreamInterfaceState != INTERFACE_STATE_TX_SIZE) &&
+		(DownstreamInterfaceState != INTERFACE_STATE_TX_PACKET))
+	{
+		SPI_INTERFACE_FREAKOUT_VOID;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_TX_SIZE)
+	{
+		DownstreamInterfaceState = INTERFACE_STATE_TX_PACKET_WAIT;
+		if (DOWNSTREAM_TX_OK_ACTIVE)
+		{
+			Downstream_TxOkInterrupt();
+		}
+		return;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_TX_PACKET)
+	{
+		if ((PendingFreePacketCallback != NULL) && (NextTxPacket == NULL))
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+
+		Downstream_ReleasePacket(CurrentWorkingPacket);
+		if (NextTxPacket != NULL)
+		{
+			//NextTxPacket has already passed the checks in SendDownstreamPacket.
+			//So we just need to pass it to HAL_SPI_Transmit_DMA.
+			DownstreamInterfaceState = INTERFACE_STATE_TX_SIZE_WAIT;
+			CurrentWorkingPacket = NextTxPacket;
+			NextTxPacket = NULL;
+			if (DOWNSTREAM_TX_OK_ACTIVE)
+			{
+				Downstream_TxOkInterrupt();
+			}
+			return;
+		}
+
+		DownstreamInterfaceState = INTERFACE_STATE_IDLE;
+		if (ReceivePacketCallback != NULL)
+		{
+			Downstream_CheckBeginPacketReception();
+		}
+	}
+}
+
+
+//Used by USB interface classes.
+//Ok to call when transmitting, receiving, or waiting for downstream.
+HAL_StatusTypeDef Downstream_GetPacket(SpiPacketReceivedCallbackTypeDef callback)
+{
+	if (ReceivePacketCallback != NULL)
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	ReceivePacketCallback = callback;
+	return Downstream_CheckBeginPacketReception();
+}
+
+
+//Internal use only.
+HAL_StatusTypeDef Downstream_CheckBeginPacketReception(void)
+{
+	if ((DownstreamInterfaceState < INTERFACE_STATE_IDLE) ||
+		(DownstreamInterfaceState > INTERFACE_STATE_RX_PACKET))
+	{
+		SPI_INTERFACE_FREAKOUT_HAL_ERROR;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_IDLE)
+	{
+		DownstreamInterfaceState = INTERFACE_STATE_RX_SIZE_WAIT;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_RX_SIZE_WAIT)
+	{
+		if (DOWNSTREAM_TX_OK_ACTIVE)
+		{
+			//DownstreamTxOkInterrupt();
+			Downstream_GetFreePacket(Downstream_BeginPacketReception);		//Take a shortcut here :)
+		}
+	}
+	return HAL_OK;
+}
+
+
+//This is called by EXTI3 falling edge interrupt,
+//indicating that downstream is ready for next transaction.
+void Downstream_TxOkInterrupt(void)
+{
+	switch (DownstreamInterfaceState)
+	{
+	case INTERFACE_STATE_TX_SIZE_WAIT:
+		DownstreamInterfaceState = INTERFACE_STATE_TX_SIZE;
+		SPI1_NSS_ASSERT;
+		if (HAL_SPI_Transmit_DMA(&hspi1,
+								 (uint8_t*)&CurrentWorkingPacket->Length,
+								 2) != HAL_OK)
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		break;
+
+	case INTERFACE_STATE_TX_PACKET_WAIT:
+		DownstreamInterfaceState = INTERFACE_STATE_TX_PACKET;
+		SPI1_NSS_ASSERT;
+		if ((HAL_SPI_Transmit_DMA(&hspi1,
+								  &CurrentWorkingPacket->CommandClass,
+								  CurrentWorkingPacket->Length)) != HAL_OK)
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		break;
+
+	case INTERFACE_STATE_RX_SIZE_WAIT:
+		Downstream_GetFreePacket(Downstream_BeginPacketReception);
+		break;
+
+	case INTERFACE_STATE_RX_PACKET_WAIT:
+		DownstreamInterfaceState = INTERFACE_STATE_RX_PACKET;
+		SPI1_NSS_ASSERT;
+		if ((HAL_SPI_Receive_DMA(&hspi1,
+								 &CurrentWorkingPacket->CommandClass,
+								 (CurrentWorkingPacket->Length + 1))) != HAL_OK)	//"When the CRC feature is enabled the pData Length must be Size + 1"
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		break;
+
+	default:
+		SPI_INTERFACE_FREAKOUT_VOID;
+	}
+}
+
+
+//Internal use only.
+//Called when we want to receive downstream packet, and a packet buffer has become free.
+void Downstream_BeginPacketReception(DownstreamPacketTypeDef* freePacket)
+{
+	if (DownstreamInterfaceState != INTERFACE_STATE_RX_SIZE_WAIT)
+	{
+		SPI_INTERFACE_FREAKOUT_VOID;
+	}
+	DownstreamInterfaceState = INTERFACE_STATE_RX_SIZE;
+	CurrentWorkingPacket = freePacket;
+	CurrentWorkingPacket->Length = 0;		//Our RX buffer is used by HAL_SPI_Receive_DMA as dummy TX data, we set Length to 0 so downstream will know this is a dummy packet.
+	SPI1_NSS_ASSERT;
+	if (HAL_SPI_Receive_DMA(&hspi1,
+							(uint8_t*)&CurrentWorkingPacket->Length,
+							(2 + 1)) != HAL_OK)		//"When the CRC feature is enabled the pData Length must be Size + 1"
+	{
+		SPI_INTERFACE_FREAKOUT_VOID;
+	}
+}
+
+
+//Called at the end of the SPI TX DMA transfer,
+//at DMA2 interrupt priority. Assume *hspi points to our hspi1.
+void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
+{
+	SpiPacketReceivedCallbackTypeDef tempPacketCallback;
+
+	SPI1_NSS_DEASSERT;
+
+	if ((DownstreamInterfaceState != INTERFACE_STATE_RX_SIZE) &&
+		(DownstreamInterfaceState != INTERFACE_STATE_RX_PACKET))
+	{
+		SPI_INTERFACE_FREAKOUT_VOID;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_RX_SIZE)
+	{
+		if ((CurrentWorkingPacket->Length < DOWNSTREAM_PACKET_LEN_MIN) ||
+			(CurrentWorkingPacket->Length > DOWNSTREAM_PACKET_LEN))
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		DownstreamInterfaceState = INTERFACE_STATE_RX_PACKET_WAIT;
+		if (DOWNSTREAM_TX_OK_ACTIVE)
+		{
+			Downstream_TxOkInterrupt();
+		}
+		return;
+	}
+
+	if (DownstreamInterfaceState == INTERFACE_STATE_RX_PACKET)
+	{
+		DownstreamInterfaceState = INTERFACE_STATE_IDLE;
+		if ((SentCommandClass != (CurrentWorkingPacket->CommandClass & COMMAND_CLASS_MASK)) ||
+			(SentCommand != CurrentWorkingPacket->Command))
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		if (ReceivePacketCallback == NULL)
+		{
+			SPI_INTERFACE_FREAKOUT_VOID;
+		}
+		//USB interface may want to receive another packet immediately,
+		//so clear ReceivePacketCallback before the call.
+		//It is the callback's responsibility to release the packet buffer we are passing to it!
+		tempPacketCallback = ReceivePacketCallback;
+		ReceivePacketCallback = NULL;
+		tempPacketCallback(CurrentWorkingPacket);
+	}
+}
+
+
+//Something bad happened! Possibly CRC error...
+void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi)
+{
+	SPI_INTERFACE_FREAKOUT_VOID;
+}
diff --git a/Upstream/Src/hal_msp.c b/Upstream/Src/hal_msp.c
index b362508..1e3faae 100755
--- a/Upstream/Src/hal_msp.c
+++ b/Upstream/Src/hal_msp.c
@@ -35,64 +35,26 @@
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f4xx_hal.h"
 #include "interrupts.h"
+#include "board_config.h"
 
-/* USER CODE BEGIN 0 */
 
-/* USER CODE END 0 */
+DMA_HandleTypeDef	spiTxDmaHandle;
+DMA_HandleTypeDef	spiRxDmaHandle;
+
 
 /**
   * Initializes the Global MSP.
   */
 void HAL_MspInit(void)
 {
-  /* USER CODE BEGIN MspInit 0 */
-
-  /* USER CODE END MspInit 0 */
-
 //  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
 //
 //  /* System interrupt init*/
 ///* SysTick_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(SysTick_IRQn, INT_PRIORITY_SYSTICK, 0);
 
-  /* USER CODE BEGIN MspInit 1 */
-
-  /* USER CODE END MspInit 1 */
 }
 
-void HAL_CRC_MspInit(CRC_HandleTypeDef* hcrc)
-{
-
-  if(hcrc->Instance==CRC)
-  {
-  /* USER CODE BEGIN CRC_MspInit 0 */
-
-  /* USER CODE END CRC_MspInit 0 */
-    /* Peripheral clock enable */
-    __HAL_RCC_CRC_CLK_ENABLE();
-  /* USER CODE BEGIN CRC_MspInit 1 */
-
-  /* USER CODE END CRC_MspInit 1 */
-  }
-
-}
-
-void HAL_CRC_MspDeInit(CRC_HandleTypeDef* hcrc)
-{
-
-  if(hcrc->Instance==CRC)
-  {
-  /* USER CODE BEGIN CRC_MspDeInit 0 */
-
-  /* USER CODE END CRC_MspDeInit 0 */
-    /* Peripheral clock disable */
-    __CRC_CLK_DISABLE();
-  /* USER CODE BEGIN CRC_MspDeInit 1 */
-
-  /* USER CODE END CRC_MspDeInit 1 */
-  }
-
-}
 
 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
 {
@@ -100,30 +62,69 @@ void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
   GPIO_InitTypeDef GPIO_InitStruct;
   if(hspi->Instance==SPI1)
   {
-  /* USER CODE BEGIN SPI1_MspInit 0 */
-
-  /* USER CODE END SPI1_MspInit 0 */
     /* Peripheral clock enable */
 	  __HAL_RCC_SPI1_CLK_ENABLE();
-  
+	  __HAL_RCC_DMA2_CLK_ENABLE();
+
     /**SPI1 GPIO Configuration    
-    PA4     ------> SPI1_NSS
+    PA4     ------> GPIO manual slave select
     PA5     ------> SPI1_SCK
     PA6     ------> SPI1_MISO
     PA7     ------> SPI1_MOSI 
     */
-    GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
+    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-    GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
     GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
     GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
-  /* USER CODE BEGIN SPI1_MspInit 1 */
-
-  /* USER CODE END SPI1_MspInit 1 */
+    GPIO_InitStruct.Pin = SPI1_NSS_PIN;
+    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+    SPI1_NSS_DEASSERT;
+
+	//Prepare Tx DMA stream
+	hspi->hdmatx = &spiTxDmaHandle;
+	spiTxDmaHandle.Instance = DMA2_Stream3;
+	spiTxDmaHandle.Parent = hspi;
+	spiTxDmaHandle.Init.Channel = DMA_CHANNEL_3;
+	spiTxDmaHandle.Init.Direction = DMA_MEMORY_TO_PERIPH;
+	spiTxDmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
+	spiTxDmaHandle.Init.MemInc = DMA_MINC_ENABLE;
+	spiTxDmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+	spiTxDmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+	spiTxDmaHandle.Init.Mode = DMA_NORMAL;
+	spiTxDmaHandle.Init.Priority = DMA_PRIORITY_MEDIUM;
+	spiTxDmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+	HAL_DMA_Init(&spiTxDmaHandle);
+	HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, INT_PRIORITY_SPI_DMA, 0);
+	HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
+
+	//Prepare Rx DMA stream
+	hspi->hdmarx = &spiRxDmaHandle;
+	spiRxDmaHandle.Instance = DMA2_Stream2;
+	spiRxDmaHandle.Parent = hspi;
+	spiRxDmaHandle.Init.Channel = DMA_CHANNEL_3;
+	spiRxDmaHandle.Init.Direction = DMA_PERIPH_TO_MEMORY;
+	spiRxDmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
+	spiRxDmaHandle.Init.MemInc = DMA_MINC_ENABLE;
+	spiRxDmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+	spiRxDmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+	spiRxDmaHandle.Init.Mode = DMA_NORMAL;
+	spiRxDmaHandle.Init.Priority = DMA_PRIORITY_MEDIUM;
+	spiRxDmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+	HAL_DMA_Init(&spiRxDmaHandle);
+	HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, INT_PRIORITY_SPI_DMA, 0);
+	HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn);
+
+	//Configure downstream request pin and interrupt
+	GPIO_InitStruct.Pin = DOWNSTREAM_TX_OK_PIN;
+	GPIO_InitStruct.Mode = GPIO_MODE_INPUT | GPIO_MODE_IT_FALLING;
+	GPIO_InitStruct.Pull = GPIO_PULLUP;
+	HAL_GPIO_Init(DOWNSTREAM_TX_OK_PORT, &GPIO_InitStruct);
+	HAL_NVIC_SetPriority(EXTI3_IRQn, INT_PRIORITY_SPI_DMA, 0);
+	HAL_NVIC_EnableIRQ(EXTI3_IRQn);
   }
-
 }
 
 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
@@ -131,11 +132,9 @@ void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
 
   if(hspi->Instance==SPI1)
   {
-  /* USER CODE BEGIN SPI1_MspDeInit 0 */
-
-  /* USER CODE END SPI1_MspDeInit 0 */
     /* Peripheral clock disable */
-    __SPI1_CLK_DISABLE();
+    __HAL_RCC_SPI1_CLK_DISABLE();
+    __HAL_RCC_DMA2_CLK_DISABLE();
   
     /**SPI1 GPIO Configuration    
     PA4     ------> SPI1_NSS
@@ -144,24 +143,16 @@ void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
     PA7     ------> SPI1_MOSI 
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
+    HAL_DMA_DeInit(&spiTxDmaHandle);
+    HAL_DMA_DeInit(&spiRxDmaHandle);
 
-  /* USER CODE BEGIN SPI1_MspDeInit 1 */
-
-  /* USER CODE END SPI1_MspDeInit 1 */
+    HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
+    HAL_NVIC_DisableIRQ(DMA2_Stream2_IRQn);
   }
 
 }
 
-/* USER CODE BEGIN 1 */
 
-/* USER CODE END 1 */
 
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
 
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Upstream/Src/interrupts.c b/Upstream/Src/interrupts.c
index 98fba37..74aa428 100755
--- a/Upstream/Src/interrupts.c
+++ b/Upstream/Src/interrupts.c
@@ -41,38 +41,50 @@
 /* USER CODE END 0 */
 /* External variables --------------------------------------------------------*/
 
-extern PCD_HandleTypeDef hpcd_USB_OTG_FS;
+extern PCD_HandleTypeDef	hpcd_USB_OTG_FS;
+extern DMA_HandleTypeDef	spiTxDmaHandle;
+extern DMA_HandleTypeDef	spiRxDmaHandle;
+
 
 /******************************************************************************/
 /*            Cortex-M4 Processor Interruption and Exception Handlers         */ 
 /******************************************************************************/
 
-/**
-* @brief This function handles USB On The Go FS global interrupt.
-*/
+void SysTick_Handler(void)
+{
+  HAL_IncTick();
+
+}
+
+/////////////////////////
+//All interrupts in this section must be at the same priority.
+//They interact with each other, and calls are not thread-safe
+//when different interrupt priorities are used.
+/////////////////////////
 void OTG_FS_IRQHandler(void)
 {
-	STAT_LED_PORT->BSRR = STAT_LED_BSRR_ON;		//blink STAT LED while processing interrupt
+	STAT_LED_ON;		//blink STAT LED while processing interrupt
 	HAL_PCD_IRQHandler(&hpcd_USB_OTG_FS);
-	STAT_LED_PORT->BSRR = STAT_LED_BSRR_OFF;
+	STAT_LED_OFF;
 }
 
-/**
-* @brief This function handles System tick timer.
-*/
-void SysTick_Handler(void)
+void DMA2_Stream2_IRQHandler(void)
 {
-  /* USER CODE BEGIN SysTick_IRQn 0 */
+	HAL_DMA_IRQHandler(&spiRxDmaHandle);
+}
 
-  /* USER CODE END SysTick_IRQn 0 */
-  HAL_IncTick();
-  //HAL_SYSTICK_IRQHandler();
-  /* USER CODE BEGIN SysTick_IRQn 1 */
+void DMA2_Stream3_IRQHandler(void)
+{
+	HAL_DMA_IRQHandler(&spiTxDmaHandle);
+}
 
-  /* USER CODE END SysTick_IRQn 1 */
+void EXTI3_IRQHandler(void)
+{
+	__HAL_GPIO_EXTI_CLEAR_IT(3);
+	Downstream_TxOkInterrupt();
 }
+/////////////////////////
+/////////////////////////
 
-/* USER CODE BEGIN 1 */
 
-/* USER CODE END 1 */
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Upstream/Src/main.c b/Upstream/Src/main.c
index 8d0817d..ed19f43 100755
--- a/Upstream/Src/main.c
+++ b/Upstream/Src/main.c
@@ -33,6 +33,7 @@
   */
 
 /* Includes ------------------------------------------------------------------*/
+#include <downstream_spi.h>
 #include "stm32f4xx_hal.h"
 #include "usb_device.h"
 #include "board_config.h"
@@ -40,16 +41,13 @@
 
 
 /* Private variables ---------------------------------------------------------*/
-CRC_HandleTypeDef hcrc;
-SPI_HandleTypeDef hspi1;
 
 
 
 /* Private function prototypes -----------------------------------------------*/
 void SystemClock_Config(void);
-static void MX_GPIO_Init(void);
-static void MX_CRC_Init(void);
-static void MX_SPI1_Init(void);
+static void GPIO_Init(void);
+
 
 
 int main(void)
@@ -63,10 +61,12 @@ int main(void)
   SystemClock_Config();
 
   /* Initialize all configured peripherals */
-  MX_GPIO_Init();
-  MX_CRC_Init();
-  MX_SPI1_Init();
-  MX_USB_DEVICE_Init();
+  GPIO_Init();
+  USB_Device_Init();
+
+  Downstream_InitInterface();
+
+
 
   while (1)
   {
@@ -107,33 +107,6 @@ void SystemClock_Config(void)
 }
 
 
-/* CRC init function */
-void MX_CRC_Init(void)
-{
-  hcrc.Instance = CRC;
-  hcrc.State = HAL_CRC_STATE_RESET;
-  HAL_CRC_Init(&hcrc);
-}
-
-
-/* SPI1 init function */
-void MX_SPI1_Init(void)
-{
-  hspi1.Instance = SPI1;
-  hspi1.State = HAL_SPI_STATE_RESET;
-  hspi1.Init.Mode = SPI_MODE_MASTER;
-  hspi1.Init.Direction = SPI_DIRECTION_2LINES;
-  hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
-  hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
-  hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
-  hspi1.Init.NSS = SPI_NSS_HARD_OUTPUT;
-  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
-  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
-  hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
-  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_ENABLED;
-  hspi1.Init.CRCPolynomial = SPI_CRC_DEFAULTPOLYNOMIAL;
-  HAL_SPI_Init(&hspi1);
-}
 
 /** Configure pins as 
         * Analog 
@@ -142,7 +115,7 @@ void MX_SPI1_Init(void)
         * EVENT_OUT
         * EXTI
 */
-void MX_GPIO_Init(void)
+void GPIO_Init(void)
 {
 	GPIO_InitTypeDef GPIO_InitStruct;
 
@@ -177,7 +150,7 @@ void MX_GPIO_Init(void)
 	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
 	GPIO_InitStruct.Pull = GPIO_NOPULL;
 	HAL_GPIO_Init(STAT_LED_PORT, &GPIO_InitStruct);
-	STAT_LED_PORT->BSRR = STAT_LED_BSRR_OFF;
+	STAT_LED_PORT->BSRR = STAT_LED_OFF;
 }
 
 /* USER CODE BEGIN 4 */
diff --git a/Upstream/Src/usb_device.c b/Upstream/Src/usb_device.c
index 16e11ff..3aadc60 100755
--- a/Upstream/Src/usb_device.c
+++ b/Upstream/Src/usb_device.c
@@ -35,25 +35,22 @@
 
 /* Includes ------------------------------------------------------------------*/
 
+#include <usbd_descriptors.h>
 #include "usb_device.h"
 #include "usbd_core.h"
-#include "usbd_desc.h"
 #include "usbd_msc.h"
-#include "usbd_storage_if.h"
 
 /* USB Device Core handle declaration */
 USBD_HandleTypeDef hUsbDeviceFS;
 
 /* init function */				        
-void MX_USB_DEVICE_Init(void)
+void USB_Device_Init(void)
 {
   /* Init Device Library,Add Supported Class and Start the library*/
   USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS);
 
   USBD_RegisterClass(&hUsbDeviceFS, &USBD_MSC);
 
-  USBD_MSC_RegisterStorage(&hUsbDeviceFS, &USBD_Storage_Interface_fops_FS);
-
   USBD_Start(&hUsbDeviceFS);
 
 }
diff --git a/Upstream/Src/usbd_conf.c b/Upstream/Src/usbd_config.c
similarity index 92%
rename from Upstream/Src/usbd_conf.c
rename to Upstream/Src/usbd_config.c
index 6f1595d..8a0035e 100755
--- a/Upstream/Src/usbd_conf.c
+++ b/Upstream/Src/usbd_config.c
@@ -116,7 +116,7 @@ void HAL_PCD_MspDeInit(PCD_HandleTypeDef* hpcd)
   */
 void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
 {
-  USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
+  USBD_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
 }
 
 /**
@@ -127,7 +127,7 @@ void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
   */
 void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
 {
-  USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
+  USBD_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
 }
 
 /**
@@ -138,7 +138,7 @@ void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
   */
 void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
 {
-  USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
+  USBD_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
 }
 
 /**
@@ -148,7 +148,7 @@ void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
   */
 void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
 {
-  USBD_LL_SOF(hpcd->pData);
+  USBD_SOF(hpcd->pData);
 }
 
 /**
@@ -174,10 +174,10 @@ void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
     speed = USBD_SPEED_FULL;    
     break;    
   }
-  USBD_LL_SetSpeed(hpcd->pData, speed);  
+  USBD_SetSpeed(hpcd->pData, speed);
   
   /*Reset Device*/
-  USBD_LL_Reset(hpcd->pData);
+  USBD_Reset(hpcd->pData);
 }
 
 /**
@@ -189,7 +189,7 @@ void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
 void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
 {  
   /* Inform USB library that core enters in suspend Mode */
-  USBD_LL_Suspend(hpcd->pData);
+  USBD_Suspend(hpcd->pData);
   __HAL_PCD_GATE_PHYCLOCK(hpcd);
   /*Enter in STOP mode */
   /* USER CODE BEGIN 2 */
@@ -217,7 +217,7 @@ void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
   }  
   /* USER CODE END 3 */
   __HAL_PCD_UNGATE_PHYCLOCK(hpcd);
-  USBD_LL_Resume(hpcd->pData);
+  USBD_Resume(hpcd->pData);
 }
 
 /**
@@ -228,7 +228,7 @@ void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
   */
 void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
 {
-  USBD_LL_IsoOUTIncomplete(hpcd->pData, epnum);
+  USBD_IsoOUTIncomplete(hpcd->pData, epnum);
 }
 
 /**
@@ -239,7 +239,7 @@ void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
   */
 void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
 {
-  USBD_LL_IsoINIncomplete(hpcd->pData, epnum);
+  USBD_IsoINIncomplete(hpcd->pData, epnum);
 }
 
 /**
@@ -249,7 +249,7 @@ void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
   */
 void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
 {
-  USBD_LL_DevConnected(hpcd->pData);
+  USBD_DevConnected(hpcd->pData);
 }
 
 /**
@@ -259,7 +259,12 @@ void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
   */
 void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
 {
-  USBD_LL_DevDisconnected(hpcd->pData);
+  USBD_DevDisconnected(hpcd->pData);
+}
+
+void HAL_PCD_BufferFreedCallBack(PCD_HandleTypeDef *hpcd)
+{
+	USBD_BufferFreed(hpcd->pData);
 }
 
 /*******************************************************************************
diff --git a/Upstream/Src/usbd_desc.c b/Upstream/Src/usbd_descriptors.c
similarity index 88%
rename from Upstream/Src/usbd_desc.c
rename to Upstream/Src/usbd_descriptors.c
index d127dc0..ddf0611 100755
--- a/Upstream/Src/usbd_desc.c
+++ b/Upstream/Src/usbd_descriptors.c
@@ -34,9 +34,10 @@
 */
 
 /* Includes ------------------------------------------------------------------*/
+#include "usbd_config.h"
+#include "usbd_descriptors.h"
 #include "usbd_core.h"
-#include "usbd_desc.h"
-#include "usbd_conf.h"
+#include "usbd_msc.h"
 /** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
   * @{
   */
@@ -145,6 +146,26 @@ __ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END =
   #pragma data_alignment=4   
 #endif
 __ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
+
+
+/* USB Mass storage Standard Inquiry Data */
+const int8_t  STORAGE_Inquirydata_FS[] = { //36
+
+  /* LUN 0 */
+  0x00,
+  0x80,
+  0x02,
+  0x02,
+  (STANDARD_INQUIRY_DATA_LEN - 5),
+  0x00,
+  0x00,
+  0x00,
+  'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
+  'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product      : 16 Bytes */
+  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
+  '0', '.', '0' ,'1',                     /* Version      : 4 Bytes */
+};
+
 /**
   * @}
   */ 
@@ -195,14 +216,7 @@ uint8_t *  USBD_FS_LangIDStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *leng
 */
 uint8_t *  USBD_FS_ProductStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *length)
 {
-//  if(speed == 0)
-//  {
-//    USBD_GetString (USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
-//  }
-//  else
-//  {
-    USBD_GetString (USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);    
-//  }
+  USBD_GetString (USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
   return USBD_StrDesc;
 }
 
@@ -228,14 +242,7 @@ uint8_t *  USBD_FS_ManufacturerStrDescriptor( USBD_SpeedTypeDef speed , uint16_t
 */
 uint8_t *  USBD_FS_SerialStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *length)
 {
-  if(speed  == USBD_SPEED_HIGH)
-  {    
-    USBD_GetString (USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
-  }
-  else
-  {
-    USBD_GetString (USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);    
-  }
+  USBD_GetString (USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
   return USBD_StrDesc;
 }
 
@@ -248,14 +255,7 @@ uint8_t *  USBD_FS_SerialStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *leng
 */
 uint8_t *  USBD_FS_ConfigStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *length)
 {
-  if(speed  == USBD_SPEED_HIGH)
-  {  
-    USBD_GetString (USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
-  }
-  else
-  {
-    USBD_GetString (USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length); 
-  }
+  USBD_GetString (USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
   return USBD_StrDesc;  
 }
 
@@ -268,14 +268,7 @@ uint8_t *  USBD_FS_ConfigStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *leng
 */
 uint8_t *  USBD_FS_InterfaceStrDescriptor( USBD_SpeedTypeDef speed , uint16_t *length)
 {
-  if(speed == 0)
-  {
-    USBD_GetString (USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
-  }
-  else
-  {
-    USBD_GetString (USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
-  }
+  USBD_GetString (USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
   return USBD_StrDesc;  
 }
 /**
diff --git a/Upstream/Src/usbd_storage_if.c b/Upstream/Src/usbd_storage_if.c
deleted file mode 100755
index c9e22cf..0000000
--- a/Upstream/Src/usbd_storage_if.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/**
-  ******************************************************************************
-  * @file           : usbd_storage_if.c
-  * @author         : MCD Application Team
-  * @version        : V1.1.0
-  * @date           : 19-March-2012
-  * @brief          : Memory management layer
-  ******************************************************************************
-  * COPYRIGHT(c) 2015 STMicroelectronics
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  * 1. Redistributions of source code must retain the above copyright notice,
-  * this list of conditions and the following disclaimer.
-  * 2. Redistributions in binary form must reproduce the above copyright notice,
-  * this list of conditions and the following disclaimer in the documentation
-  * and/or other materials provided with the distribution.
-  * 3. Neither the name of STMicroelectronics nor the names of its contributors
-  * may be used to endorse or promote products derived from this software
-  * without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  *
-  ******************************************************************************
-*/
-
-/* Includes ------------------------------------------------------------------*/
-#include "usbd_storage_if.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* USB handler declaration */
-/* Handle for USB Full Speed IP */
-USBD_HandleTypeDef  *hUsbDevice_0;
-
-extern USBD_HandleTypeDef hUsbDeviceFS;
-
-/* Private function prototypes -----------------------------------------------*/
-/* Extern function prototypes ------------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-#define STORAGE_LUN_NBR                  1  
-#define STORAGE_BLK_NBR                  0x10000  
-#define STORAGE_BLK_SIZ                  0x200
-
-static int8_t STORAGE_Init_FS (uint8_t lun);
-static int8_t STORAGE_GetCapacity_FS (uint8_t lun, 
-                           uint32_t *block_num, 
-                           uint16_t *block_size);
-static int8_t  STORAGE_IsReady_FS (uint8_t lun);
-static int8_t  STORAGE_IsWriteProtected_FS (uint8_t lun);
-static int8_t STORAGE_Read_FS (uint8_t lun, 
-                        uint8_t *buf, 
-                        uint32_t blk_addr,
-                        uint16_t blk_len);
-static int8_t STORAGE_Write_FS (uint8_t lun, 
-                        uint8_t *buf, 
-                        uint32_t blk_addr,
-                        uint16_t blk_len);
-static int8_t STORAGE_GetMaxLun_FS (void);
-
-/* USER CODE BEGIN 0 */ 
-/* USB Mass storage Standard Inquiry Data */
-const int8_t  STORAGE_Inquirydata_FS[] = {//36
-  
-  /* LUN 0 */
-  0x00,		
-  0x80,		
-  0x02,		
-  0x02,
-  (STANDARD_INQUIRY_DATA_LEN - 5),
-  0x00,
-  0x00,	
-  0x00,
-  'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
-  'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product      : 16 Bytes */
-  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
-  '0', '.', '0' ,'1',                     /* Version      : 4 Bytes */
-}; 
-/* USER CODE END 0 */ 
-
-USBD_StorageTypeDef USBD_Storage_Interface_fops_FS =
-{
-  STORAGE_Init_FS,
-  STORAGE_GetCapacity_FS,
-  STORAGE_IsReady_FS,
-  STORAGE_IsWriteProtected_FS,
-  STORAGE_Read_FS,
-  STORAGE_Write_FS,
-  STORAGE_GetMaxLun_FS,
-  (int8_t *)STORAGE_Inquirydata_FS,
-};
-
-/*******************************************************************************
-* Function Name  : STORAGE_Init_FS
-* Description    : 
- * Input          : None.
- * Output         : None.
- * Return         : None.
- *******************************************************************************/
-int8_t
-STORAGE_Init_FS (uint8_t lun)
-{
-  /* USER CODE BEGIN 2 */
-  if (lun >= STORAGE_LUN_NBR)
-  {
-    return (USBD_FAIL);
-  }
-  return (USBD_OK);
-  /* USER CODE END 2 */
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_GetCapacity_FS
-* Description    : 
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t STORAGE_GetCapacity_FS (uint8_t lun, uint32_t *block_num, uint16_t *block_size)
-{
-  /* USER CODE BEGIN 3 */   
-  if (lun >= STORAGE_LUN_NBR)
-  {
-    return (USBD_FAIL);
-  }
-
-  *block_num  = STORAGE_BLK_NBR;
-  *block_size = STORAGE_BLK_SIZ;
-  return (USBD_OK);
-  /* USER CODE END 3 */ 
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_IsReady_FS
-* Description    : 
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t  STORAGE_IsReady_FS (uint8_t lun)
-{
-  /* USER CODE BEGIN 4 */
-  if (lun >= STORAGE_LUN_NBR)
-  {
-    return (USBD_FAIL);
-  }
-  return (USBD_OK);
-  /* USER CODE END 4 */ 
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_IsWriteProtected_FS
-* Description    : 
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t  STORAGE_IsWriteProtected_FS (uint8_t lun)
-{
-  /* USER CODE BEGIN 5 */
-  if (lun >= STORAGE_LUN_NBR)
-  {
-    return (USBD_FAIL);
-  }
-  return (USBD_OK);
-  /* USER CODE END 5 */ 
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_Read_FS
-* Description    : 
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t STORAGE_Read_FS (uint8_t lun, 
-                        uint8_t *buf, 
-                        uint32_t blk_addr,                       
-                        uint16_t blk_len)
-{
-  /* USER CODE BEGIN 6 */
-  uint16_t blockLoop;
-  uint16_t byteLoop;
-
-	if (lun >= STORAGE_LUN_NBR)
-	{
-		return -1;
-	}
-
-	for (blockLoop = 0; blockLoop < blk_len; blockLoop++)			//blk_len will be 1 when scsi_blk_size = 512 bytes
-	{
-		for (byteLoop = 0; byteLoop < STORAGE_BLK_SIZ; byteLoop += 4)	//STORAGE_BLK_SIZ must be a multiple of 4
-		{
-			*((__packed uint32_t *)buf) = 0;
-			buf += 4;
-		}
-	}
-
-  return (USBD_OK);
-  /* USER CODE END 6 */ 
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_Write_FS
-* Description    :
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t STORAGE_Write_FS (uint8_t lun, 
-                         uint8_t *buf, 
-                         uint32_t blk_addr,
-                         uint16_t blk_len)
-{
-  /* USER CODE BEGIN 7 */
-  if (lun >= STORAGE_LUN_NBR)
-  {
-     return -1;
-  }
-
-  return (USBD_OK);
-  /* USER CODE END 7 */ 
-}
-
-/*******************************************************************************
-* Function Name  : STORAGE_GetMaxLun_FS
-* Description    : 
-* Input          : None.
-* Output         : None.
-* Return         : None.
-*******************************************************************************/
-int8_t STORAGE_GetMaxLun_FS (void)
-{
-  /* USER CODE BEGIN 8 */ 
-  return (STORAGE_LUN_NBR - 1);
-  /* USER CODE END 8 */ 
-}
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/