|
|
|
|
/** \file
|
|
|
|
|
*
|
|
|
|
|
* This file contains special DoxyGen information for the generation of the main page and other special
|
|
|
|
|
* documentation pages. It is not a project source file.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/** \mainpage DFU Class USB AVR Bootloader
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_Compat Demo Compatibility:
|
|
|
|
|
*
|
|
|
|
|
* The following list indicates what microcontrollers are compatible with this demo.
|
|
|
|
|
*
|
|
|
|
|
* - Series 7 USB AVRs (AT90USBxxx7)
|
|
|
|
|
* - Series 6 USB AVRs (AT90USBxxx6)
|
|
|
|
|
* - Series 4 USB AVRs (ATMEGAxxU4)
|
|
|
|
|
* - Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2)
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_Info USB Information:
|
|
|
|
|
*
|
|
|
|
|
* The following table gives a rundown of the USB utilization of this demo.
|
|
|
|
|
*
|
|
|
|
|
* <table>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>USB Mode:</b></td>
|
|
|
|
|
* <td>Device</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>USB Class:</b></td>
|
|
|
|
|
* <td>Device Firmware Update Class (DFU)</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>USB Subclass:</b></td>
|
|
|
|
|
* <td>None</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>Relevant Standards:</b></td>
|
|
|
|
|
* <td>USBIF DFU Class Standard, Atmel USB Bootloader Datasheet</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>Usable Speeds:</b></td>
|
|
|
|
|
* <td>Full Speed Mode</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* </table>
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_Description Project Description:
|
|
|
|
|
*
|
|
|
|
|
* This bootloader enumerates to the host as a DFU Class device, allowing for DFU-compatible programming
|
|
|
|
|
* software to load firmware onto the AVR.
|
|
|
|
|
*
|
|
|
|
|
* Out of the box this bootloader builds for the USB1287, and should fit into 4KB of bootloader space. If
|
|
|
|
|
* you wish to enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU
|
|
|
|
|
* values in the accompanying makefile.
|
|
|
|
|
*
|
|
|
|
|
* When the bootloader is running, the board's LED(s) will flash at regular intervals to distinguish the
|
|
|
|
|
* bootloader from the normal user application.
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_Installation Driver Installation
|
|
|
|
|
*
|
|
|
|
|
* This bootloader is designed to be compatible with Atmel's provided Windows DFU class drivers. You will need to
|
|
|
|
|
* install Atmel's DFU drivers prior to using this bootloader on Windows platforms. If you are using a 64 bit Windows
|
|
|
|
|
* OS, you will need to either disable the driver signing requirement (see online tutorials for details) or use a
|
|
|
|
|
* digitally signed version of the official Atmel driver provided by a third party AVR user at
|
|
|
|
|
* <a>http://www.avrfreaks.net/index.php?module=Freaks%20Academy&func=viewItem&item_id=2196&item_type=project</a>.
|
|
|
|
|
*
|
|
|
|
|
* \note This device spoofs Atmel's DFU Bootloader USB VID and PID so that the Atmel DFU bootloader
|
|
|
|
|
* drivers included with FLIP will work. If you do not wish to use Atmel's ID codes, please
|
|
|
|
|
* manually change them in Descriptors.c and alter your driver's INF file accordingly.
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_HostApp Host Controller Application
|
|
|
|
|
*
|
|
|
|
|
* This bootloader is compatible with Atmel's FLIP utility on Windows machines, and dfu-programmer on Linux machines.
|
|
|
|
|
*
|
|
|
|
|
* \subsection SSec_FLIP FLIP (Windows)
|
|
|
|
|
*
|
|
|
|
|
* FLIP (Flexible In-System Programmer) is a utility written by Atmel, and distributed for free on the Atmel website.
|
|
|
|
|
* The FLIP utility is designed to assist in the bootloader programming of a range of Atmel devices, through several
|
|
|
|
|
* popular physical interfaces including USB. It is written in Java, however makes use of native extensions for USB
|
|
|
|
|
* support and thus is only offered on Windows.
|
|
|
|
|
*
|
|
|
|
|
* To program a device using FLIP, refer to the Atmel FLIP documentation.
|
|
|
|
|
*
|
|
|
|
|
* \subsection SSec_DFUProgrammer dfu-programmer (Linux)
|
|
|
|
|
*
|
|
|
|
|
* dfu-programmer is an open-source command line solution for the bootloader programming of Atmel devices through a
|
|
|
|
|
* USB connection, using the DFU protocol, available for download at <a>http://sourceforge.net/projects/dfu-programmer/</a>.
|
|
|
|
|
*
|
|
|
|
|
* The following example loads a HEX file into the AVR's FLASH memory using dfu-programmer:
|
|
|
|
|
* \code
|
|
|
|
|
* dfu-programmer at90usb1287 erase flash Mouse.hex
|
|
|
|
|
* \endcode
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_API User Application API
|
|
|
|
|
*
|
|
|
|
|
* Several user application functions for FLASH and other special memory area manipulations are exposed by the bootloader,
|
|
|
|
|
* allowing the user application to call into the bootloader at runtime to read and write FLASH data.
|
|
|
|
|
*
|
|
|
|
|
* \warning The APIs exposed by the DFU class bootloader are \b NOT compatible with the API exposed by the official Atmel DFU bootloader.
|
|
|
|
|
*
|
|
|
|
|
* By default, the bootloader API jump table is located 32 bytes from the end of the device's FLASH memory, and follows the
|
|
|
|
|
* following layout:
|
|
|
|
|
*
|
|
|
|
|
* \code
|
|
|
|
|
* #define BOOTLOADER_API_START(Index) (void*)(((FLASHEND - 32) + (2 * Index)) / 2)
|
|
|
|
|
* void (*BootloaderAPI_ErasePage)(uint32_t Address) = BOOTLOADER_API_START(0);
|
|
|
|
|
* void (*BootloaderAPI_WritePage)(uint32_t Address) = BOOTLOADER_API_START(1);
|
|
|
|
|
* void (*BootloaderAPI_FillWord)(uint32_t Address, uint16_t Word) = BOOTLOADER_API_START(2);
|
|
|
|
|
* uint8_t (*BootloaderAPI_ReadSignature)(uint16_t Address) = BOOTLOADER_API_START(3);
|
|
|
|
|
* uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address) = BOOTLOADER_API_START(4);
|
|
|
|
|
* uint8_t (*BootloaderAPI_ReadLock)(void) = BOOTLOADER_API_START(5);
|
|
|
|
|
* void (*BootloaderAPI_WriteLock)(uint8_t LockBits) = BOOTLOADER_API_START(6);
|
|
|
|
|
*
|
|
|
|
|
* #define BOOTLOADER_SIG_START (FLASHEND - 32)
|
|
|
|
|
* #define BOOTLOADER_SIGNATURE 0xDCFB
|
|
|
|
|
* \endcode
|
|
|
|
|
*
|
|
|
|
|
* From the application the API support of the bootloader can be detected by reading the FLASH memory bytes located at address
|
|
|
|
|
* \c BOOTLOADER_SIG_START and comparing them to the value \c BOOTLOADER_SIGNATURE.
|
|
|
|
|
*
|
|
|
|
|
* \section Sec_Options Project Options
|
|
|
|
|
*
|
|
|
|
|
* The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
|
|
|
|
|
*
|
|
|
|
|
* <table>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td><b>Define Name:</b></td>
|
|
|
|
|
* <td><b>Location:</b></td>
|
|
|
|
|
* <td><b>Description:</b></td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* <tr>
|
|
|
|
|
* <td>SECURE_MODE</td>
|
|
|
|
|
* <td>BootloaderDFU.h</td>
|
|
|
|
|
* <td>If defined to true, the bootloader will not accept any memory commands other than a chip erase on start-up, until an
|
|
|
|
|
* erase has been performed. This can be used in conjunction with the AVR's lockbits to prevent the AVRs firmware from
|
|
|
|
|
* being dumped by unauthorized persons.</td>
|
|
|
|
|
* </tr>
|
|
|
|
|
* </table>
|
|
|
|
|
*/
|
|
|
|
|
|
