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Add API support signature to the CDC and DFU class bootloaders, so that the application can detect the bootloader's API support.

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This commit is contained in:
Dean Camera
2012-02-03 21:49:36 +00:00
parent 3dacb73af3
commit 43a3350981
7 changed files with 39 additions and 16 deletions
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19
Bootloaders/DFU/BootloaderAPITable.S
View File

@@ -32,12 +32,17 @@
.section .apitable, "ax"
.org 0
; API function jump table
.global BootloaderAPI_JumpTable
BootloaderAPI_JumpTable:
jmp BootloaderAPI_ErasePage
jmp BootloaderAPI_WritePage
jmp BootloaderAPI_FillWord
jmp BootloaderAPI_ReadSignature
jmp BootloaderAPI_ReadFuse
jmp BootloaderAPI_ReadLock
jmp BootloaderAPI_WriteLock
rjmp BootloaderAPI_ErasePage
rjmp BootloaderAPI_WritePage
rjmp BootloaderAPI_FillWord
rjmp BootloaderAPI_ReadSignature
rjmp BootloaderAPI_ReadFuse
rjmp BootloaderAPI_ReadLock
rjmp BootloaderAPI_WriteLock
; Bootloader table signature
.org 30
.word 0xDCFB

6
Bootloaders/DFU/BootloaderDFU.txt
View File

@@ -108,8 +108,14 @@
* 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.