History

Andrew Tridgell 5c9b3842e6 Tools: fixed bootloader hang on GPS data don't kill the timeout till we get valid sync and get_device calls. This makes accidental bootloader triggers very unlikely		2019-05-06 08:08:05 +10:00
..
AP_Bootloader.cpp	AP_Bootloader: use fast boot after watchdog reset	2019-04-22 16:53:35 +10:00
README.md	Tools: added bootloader docs	2018-07-04 19:11:10 +10:00
bl_protocol.cpp	Tools: fixed bootloader hang on GPS data	2019-05-06 08:08:05 +10:00
bl_protocol.h	AP_Bootloader: initial version of ChibiOS bootloader	2018-06-22 08:00:31 +10:00
mcu_f4.h	AP_Bootloader: added flash size limiting on old CPUs	2018-06-25 21:22:31 +10:00
mcu_f7.h	AP_Bootloader: added mcu files	2018-06-22 08:06:41 +10:00
mcu_h7.h	AP_Bootloader: support building on STM32H7	2019-02-26 16:18:26 +11:00
support.cpp	AP_Bootloader: disable debug printf	2019-02-26 16:18:26 +11:00
support.h	AP_Bootloader: fully working on H7	2019-02-26 16:18:26 +11:00
wscript	AP_Bootloader: only build bootloader when --bootloader configured	2018-06-22 08:00:31 +10:00

README.md

ArduPilot Bootloader

This is the bootloader used for STM32 boards for ArduPilot. To build the bootloader do this:

 ./waf configure --board BOARDNAME --bootloader
 ./waf bootloader

the bootloader will be in build/BOARDNAME/bin. If you have the intelhex module installed it will build in both bin format and hex format. Both are usually uploaded with DFU. The elf file will be in build/BOARDNAME/AP_Bootloader for loading with gdb.

The --bootloader option tells waf to get the hardware config from the hwdef-bl.dat file for the board. It will look in libraries/AP_HAL_CHibiOS/hwdef/BOARDNAME/hwdef-bl.dat

The bootloader protocol is compatible with that used by the PX4 project for boards like the Pixhawk. For compatibility purposes we maintain a list of board IDs here:

https://github.com/ArduPilot/Bootloader/blob/master/board_types.txt

the board IDs in that file match the APJ_BOARD_ID in the hwdef.dat and hwdef-bl.dat files

The bootloader can load from USB or UARTs. The list of devices to load from is given in the UART_ORDER option in hwdef-bl.dat