Thomas Watson
308ee11ca2
The <msg>_encode method always zeros the buffer up to <msg>_MAX_SIZE bytes so there is no need to do it before calling the function. Saves at least 8 bytes per instance.
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 in the board_types.txt file in this directory.
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 SERIAL_ORDER option in hwdef-bl.dat