Base Firmware Serial API


The CANBus Triple is controlled by sending commands over the USB Serial connection, or over the Bluetooth LE Serial Service. Output will always be returned over the last serial interface that recieved data. The only exception is packet logging. Packets will always be sent over USB Serial unless they match the filters set vis the 0x04 command outlined below.

System Info and EEPROM

Command Sub-command Function Example Response
0x01 0x01 Print System Info {"event":"version", "name":"CANBus Triple Mazda", "version":"0.2.5", "memory":"740"}
0x01 0x02 Dump eeprom value "1:1:0:0:0:0:0:0..." A colon delimited list of the current EEPROM data as Hex Strings
0x01 0x03 Read and save eeprom TODO
0x01 0x04 Restore eeprom to stock values Clear all EEPROM data back to default settings
0x01 0x08 0x0N Auto detect baud rate for bus N (Bus must be active for successful detection)
0x01 0x09 0x0N 0xXXXX Set baud rate for bus N. Bus speed is a 16 bit number in hex that defines the speed. Ex - 0x01F4 for 500 kbps
0x01 0x10 0xN Print Bus N Debug to Serial N is thr Bus number, 1 through 3 {"e":"busdgb", "name":"Bus 1", "canctrl":"7", "status":"14", "error":"150", "nextTxBuffer":"2"}
0x01 0x16 Reboot to bootloader Restart the MCU into the Bootloader for flashing new program code

Send CAN Packet

Send a CAN Packet over the specified Bus. Bus Id should be 1 through 3

Command Bus Id Message ID Data Length
0x02 01 290 00 00 00 00 00 00 00 00 8

Set USB Serial Logging Output

Cmd Bus Id On/Off Message ID 1 Message ID 2 Function
0x03 0x01 0x01 NA Enable logging on bus 1 (do not touch current filter)
0x03 0x01 0x01 0x290 0x291 Enable logging on bus 1 and filter only messages 0x290 and 0x291
0x03 0x01 0x00 Disable logging on bus 1

Logging With mask filters

Cmd Bus Id On/Off Message ID 1 Mask 1 Message ID 2 Mask 2 Function
0x03 0x01 0x02 0x290 0xFFF 0x400 0xFF0 Enable logging on Bus 1 filter messages 0x290 and 0x40* (0 in mask is a wildcard)
0x03 0x01 0x02 0x000 0x000 Enable logging on Bus 1 for ALL messages

Set Bluetooth Message ID filter


Command BusId Message ID 1 Message ID 2 Function
0x04 0x01 0x0290 0x0291 Enable Message ID 290 output over BT
0x04 0x01 0x0000 0x0000 Disable

Bluetooth Functions

Command Sub-Command Function
0x08 0x01 Reset BLE112 ( Deprecated )
0x08 0x02 Enter pass through mode to talk to BLE112
0x08 0x03 Exit pass through mode [Not yet implemented]