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