- can_driver: add filter bank 15 (all ext IDs → FIFO1) and widen bank 14
to accept all standard IDs; add can_driver_send_ext/std and ext/std
frame callbacks (can_driver_set_ext_cb / can_driver_set_std_cb)
- vesc_can: VESC 29-bit extended CAN protocol driver — send RPM to IDs 56
and 68 (FSESC 6.7 Pro Mini Dual), parse STATUS/STATUS_4/STATUS_5
big-endian payloads, alive timeout, JLINK_TLM_VESC_STATE at 1 Hz
- orin_can: Orin↔FC standard CAN protocol — HEARTBEAT/DRIVE/MODE/ESTOP
commands in, FC_STATUS + FC_VESC broadcast at 10 Hz
- jlink: add JLINK_TLM_VESC_STATE (0x8E), jlink_tlm_vesc_state_t (22 bytes),
jlink_send_vesc_state_tlm()
- main: wire vesc_can_init/orin_can_init; replace can_driver_send_cmd with
vesc_can_send_rpm; inject Orin CAN speed/steer into balance PID; add
Orin CAN estop/clear handling; add orin_can_broadcast at 10 Hz
- test: 56-test host-side suite for vesc_can; test/stubs/stm32f7xx_hal.h
minimal HAL stub for all future host-side tests
Safety: balance PID runs independently on Mamba — if Orin CAN link drops
(orin_can_is_alive() == false) the robot continues balancing in-place.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds slcan setup script and saltybot_can_bridge ROS2 package implementing
full CAN bus integration between the Orin and the Mamba motor controller /
VESC motor controllers via a CANable 2.0 USB dongle (slcan interface).
- jetson/scripts/setup_can.sh: slcand-based bring-up/tear-down for slcan0
at 500 kbps with error handling (already up, device missing, retry)
- saltybot_can_bridge/mamba_protocol.py: CAN message ID constants and
encode/decode helpers for velocity, mode, e-stop, IMU, battery, VESC state
- saltybot_can_bridge/can_bridge_node.py: ROS2 node subscribing to /cmd_vel
and /estop, publishing /can/imu, /can/battery, /can/vesc/{left,right}/state
and /can/connection_status; background reader thread, watchdog zero-vel,
auto-reconnect every 5 s on CAN error
- config/can_bridge_params.yaml: default params (slcan0, VESC IDs 56/68,
Mamba ID 1, 0.5 s command timeout)
- test/test_can_bridge.py: 30 unit tests covering encode/decode round-trips
and edge cases — all pass without ROS2 or CAN hardware
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
