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author | Dean Camera <dean@fourwalledcubicle.com> | 2012-03-29 19:35:40 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2012-03-29 19:35:40 +0000 |
commit | 7cac5e22d7fae140b3ae4167a706d0dc07b9cf3b (patch) | |
tree | 389c75f56b237d6fbcde41248994704d74ca011a /Bootloaders/DFU/BootloaderDFU.txt | |
parent | 5e5b7cf2cad72df3d6680da1be5232eef9cf6ece (diff) | |
download | lufa-7cac5e22d7fae140b3ae4167a706d0dc07b9cf3b.tar.gz lufa-7cac5e22d7fae140b3ae4167a706d0dc07b9cf3b.tar.bz2 lufa-7cac5e22d7fae140b3ae4167a706d0dc07b9cf3b.zip |
Added additional bootloader API data to expose the bootloader start address and class to the DFU and CDC class bootloaders.
Diffstat (limited to 'Bootloaders/DFU/BootloaderDFU.txt')
-rw-r--r-- | Bootloaders/DFU/BootloaderDFU.txt | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/Bootloaders/DFU/BootloaderDFU.txt b/Bootloaders/DFU/BootloaderDFU.txt index 110d361b6..d0811b2aa 100644 --- a/Bootloaders/DFU/BootloaderDFU.txt +++ b/Bootloaders/DFU/BootloaderDFU.txt @@ -100,21 +100,31 @@ * 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 + * #define BOOTLOADER_API_CALL(Index) (void*)(((FLASHEND - 32) + (2 * Index)) / 2) + * + * void (*BootloaderAPI_ErasePage)(uint32_t Address) = BOOTLOADER_API_CALL(0); + * void (*BootloaderAPI_WritePage)(uint32_t Address) = BOOTLOADER_API_CALL(1); + * void (*BootloaderAPI_FillWord)(uint32_t Address, uint16_t Word) = BOOTLOADER_API_CALL(2); + * uint8_t (*BootloaderAPI_ReadSignature)(uint16_t Address) = BOOTLOADER_API_CALL(3); + * uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address) = BOOTLOADER_API_CALL(4); + * uint8_t (*BootloaderAPI_ReadLock)(void) = BOOTLOADER_API_CALL(5); + * void (*BootloaderAPI_WriteLock)(uint8_t LockBits) = BOOTLOADER_API_CALL(6); + * + * #define BOOTLOADER_MAGIC_SIGNATURE_START (FLASHEND - 2) + * #define BOOTLOADER_MAGIC_SIGNATURE 0xDCFB + * + * #define BOOTLOADER_CLASS_SIGNATURE_START (FLASHEND - 4) + * #define BOOTLOADER_DFU_SIGNATURE 0xDFB1 + * + * #define BOOTLOADER_ADDRESS_START (FLASHEND - 8) + * #define BOOTLOADER_ADDRESS_LENGTH 4 * \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. + * \c BOOTLOADER_MAGIC_SIGNATURE_START and comparing them to the value \c BOOTLOADER_MAGIC_SIGNATURE. The class of bootloader + * can be determined by reading the FLASH memory bytes located at address \c BOOTLOADER_CLASS_SIGNATURE_START and comparing them + * to the value \c BOOTLOADER_CDC_SIGNATURE. The start address of the bootloader can be retrieved by reading the bytes of FLASH + * memory starting from address \c BOOTLOADER_ADDRESS_START. * * \section Sec_Options Project Options * |