X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/1a4a26271e32fba6e2430b7869ec4a8b4242e6e2..ceed4e680f630e798bdd9f3d20bd9c8246dd092f:/Bootloaders/DFU/BootloaderDFU.txt

diff --git a/Bootloaders/DFU/BootloaderDFU.txt b/Bootloaders/DFU/BootloaderDFU.txt
index 94657f355..110d361b6 100644
--- a/Bootloaders/DFU/BootloaderDFU.txt
+++ b/Bootloaders/DFU/BootloaderDFU.txt
@@ -94,7 +94,7 @@
  *  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.
  *
- *  \note The APIs exposed by the DFU class bootloader are \b NOT compatible with the API exposed by the official Atmel DFU bootloader.
+ *  \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:
@@ -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.