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@ -53,20 +53,6 @@
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#include "../AT90USBXXX/SPI.h"
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#include "../../Common/Common.h"
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#if !defined(BOARD)
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#error BOARD must be set in makefile to a value specified in BoardTypes.h.
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#elif (BOARD == BOARD_USBKEY)
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#include "USBKEY/Dataflash.h"
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#elif (BOARD == BOARD_STK525)
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#include "STK525/Dataflash.h"
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#elif (BOARD == BOARD_STK526)
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#include "STK526/Dataflash.h"
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#elif (BOARD == BOARD_USER)
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#include "Board/Dataflash.h"
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#else
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#error The selected board does not contain a dataflash IC.
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#endif
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/* Enable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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extern "C" {
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@ -89,19 +75,6 @@
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#define Dataflash_DeselectChip() Dataflash_SelectChip(DATAFLASH_NO_CHIP)
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/* Inline Functions: */
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/** Initializes the dataflash driver (including the SPI driver) so that commands and data may be
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* sent to an attached dataflash IC.
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*
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* \param PrescalerMask SPI prescaler mask, see SPI.h documentation
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*/
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static inline void Dataflash_Init(const uint8_t PrescalerMask)
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{
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DATAFLASH_CHIPCS_DDR |= DATAFLASH_CHIPCS_MASK;
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DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK;
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SPI_Init(PrescalerMask, true);
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}
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/** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash.
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*
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* \param Byte of data to send to the dataflash
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@ -134,20 +107,44 @@
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return SPI_ReceiveByte();
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}
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/* Includes: */
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#if !defined(BOARD)
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#error BOARD must be set in makefile to a value specified in BoardTypes.h.
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#elif (BOARD == BOARD_USBKEY)
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#include "USBKEY/Dataflash.h"
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#elif (BOARD == BOARD_STK525)
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#include "STK525/Dataflash.h"
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#elif (BOARD == BOARD_STK526)
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#include "STK526/Dataflash.h"
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#elif (BOARD == BOARD_USER)
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#include "Board/Dataflash.h"
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#else
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#error The selected board does not contain a dataflash IC.
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#endif
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/* Inline Functions: */
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/** Initializes the dataflash driver (including the SPI driver) so that commands and data may be
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* sent to an attached dataflash IC.
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*
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* \param PrescalerMask SPI prescaler mask, see SPI.h documentation
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*/
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static inline void Dataflash_Init(const uint8_t PrescalerMask)
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{
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DATAFLASH_CHIPCS_DDR |= DATAFLASH_CHIPCS_MASK;
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DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK;
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SPI_Init(PrescalerMask, true);
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}
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/** Toggles the select line of the currently selected dataflash IC, so that it is ready to receive
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* a new command.
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*/
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static inline void Dataflash_ToggleSelectedChipCS(void)
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{
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#if (DATAFLASH_TOTALCHIPS == 2)
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uint8_t SelectedChipMask = Dataflash_GetSelectedChip();
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Dataflash_DeselectChip();
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Dataflash_SelectChip(SelectedChipMask);
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#else
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Dataflash_DeselectChip();
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Dataflash_SelectChip(DATAFLASH_CHIP1);
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#endif
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uint8_t SelectedChipMask = Dataflash_GetSelectedChip();
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Dataflash_DeselectChip();
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Dataflash_SelectChip(SelectedChipMask);
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}
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/** Spinloops while the currently selected dataflash is busy executing a command, such as a main
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@ -162,28 +159,14 @@
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/** Selects a dataflash IC from the given page number, which should range from 0 to
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* ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1). For boards containing only one
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* dataflash IC, this will select DATAFLASH_CHIP1. If the given page number is outside the total number
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* of pages contained in the boards dataflash ICs, all dataflash ICs are deselected.
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* dataflash IC, this will select DATAFLASH_CHIP1. If the given page number is outside
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* the total number of pages contained in the boards dataflash ICs, all dataflash ICs
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* are deselected.
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*
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* \param PageAddress Address of the page to manipulate, ranging from
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* ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1).
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*/
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static inline void Dataflash_SelectChipFromPage(const uint16_t PageAddress)
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{
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Dataflash_DeselectChip();
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if (PageAddress >= (DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS))
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return;
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#if (DATAFLASH_TOTALCHIPS == 2)
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if (PageAddress & 0x01)
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Dataflash_SelectChip(DATAFLASH_CHIP2);
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else
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Dataflash_SelectChip(DATAFLASH_CHIP1);
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#else
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Dataflash_SelectChip(DATAFLASH_CHIP1);
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#endif
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}
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static inline void Dataflash_SelectChipFromPage(const uint16_t PageAddress);
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/** Sends a set of page and buffer address bytes to the currently selected dataflash IC, for use with
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* dataflash commands which require a complete 24-byte address.
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@ -191,16 +174,7 @@
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* \param PageAddress Page address within the selected dataflash IC
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* \param BufferByte Address within the dataflash's buffer
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*/
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static inline void Dataflash_SendAddressBytes(uint16_t PageAddress, const uint16_t BufferByte)
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{
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#if (DATAFLASH_TOTALCHIPS == 2)
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PageAddress >>= 1;
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#endif
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Dataflash_SendByte(PageAddress >> 5);
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Dataflash_SendByte((PageAddress << 3) | (BufferByte >> 8));
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Dataflash_SendByte(BufferByte);
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}
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static inline void Dataflash_SendAddressBytes(uint16_t PageAddress, const uint16_t BufferByte);
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/* Disable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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