APBootLoader client is an embeddable C implementation of the bootloader protocol commonly found on PixHawk and Cube autopilot systems.
A sample program is supplied which embeds the client.
Three functions must be defined by the embedding program:
ssize_t bootloader_write(const uint8_t *bytes, const size_t bytecount, const bl_timeout_t timeout);
ssize_t bootloader_readbyte(uint8_t *byte, const bl_timeout_t timeout);
#ifdef __STDC__
void bootloader_debug(const char *format, ...);
#else
void bootloader_debug(const char *format, arg...);bootloader_readbyte should return 1 if a byte was successfully returned in the byte parameter, 0 otherwise.
bootloader_write should return the number of bytes written, and -1 on error.
bootloader_debug is called with any debug which the bootloader might wish to supply.
If programming is desired, a callback can be supplied to bootloader_program; it will be called with an integer percentage indicating progress.