diff options
| author | Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28> | 2012-05-17 20:07:16 +0000 |
|---|---|---|
| committer | Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28> | 2012-05-17 20:07:16 +0000 |
| commit | 10ab223c985eb4083cf2922205191da166b07bc0 (patch) | |
| tree | 8daf8c57052af0e2b56f2db21beca58501d9a0cd /Bootloaders/CDC/BootloaderCDC.txt | |
| parent | 1b6bb22a7a90302bdfb67b10248d38bde3c501c5 (diff) | |
Update CDC and DFU class bootloader documentation with a device memory map illustration.
git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2220 d5102386-fcda-11dd-9fdb-3debd5008f28
Diffstat (limited to 'Bootloaders/CDC/BootloaderCDC.txt')
| -rw-r--r-- | Bootloaders/CDC/BootloaderCDC.txt | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/Bootloaders/CDC/BootloaderCDC.txt b/Bootloaders/CDC/BootloaderCDC.txt index 50748e59..17779674 100644 --- a/Bootloaders/CDC/BootloaderCDC.txt +++ b/Bootloaders/CDC/BootloaderCDC.txt @@ -117,6 +117,44 @@ * #define BOOTLOADER_ADDRESS_LENGTH 4 * \endcode * + * \subsection SSec_API_MemLayout Device Memory Map + * The following illustration indicates the final memory map of the device when loaded with the bootloader. + * + * \verbatim + * +----------------------------+ 0x0000 + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * | User Application | + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * +----------------------------+ FLASHEND - BOOT_SECTION_SIZE + * | | + * | Bootloader Application | + * | (Not User App. Accessible) | + * | | + * +----------------------------+ FLASHEND - 96 + * | API Table Trampolines | + * | (Not User App. Accessible) | + * +----------------------------+ FLASHEND - 32 + * | Bootloader API Table | + * | (User App. Accessible) | + * +----------------------------+ FLASHEND - 8 + * | Bootloader ID Constants | + * | (User App. Accessible) | + * +----------------------------+ FLASHEND + * \endverbatim + * * Bootloaders reporting a device release revision number of 1.00 or greater are bootloader API enabled. From the application * the API support of the bootloader can be detected by reading the FLASH memory bytes located at address \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 |