Commit cca24c8d authored by Dean Camera's avatar Dean Camera
Browse files

Update CDC and DFU class bootloader documentation with a device memory map illustration.

parent 80e278ac
......@@ -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
......
......@@ -128,6 +128,44 @@
* 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.
*
* \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
*
* \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.
......
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