Hardware Integration & CANopen

Outcome

What you will be able to do

Diagnose a motor path from physical interface through CiA 402 state and ROS controller ownership.

Build

What you will produce

A simulated dual-drive CANopen base with bounded watchdogs and a verified commissioning report.

• Linux device diagnostics
• CAN bus analysis
• SocketCAN
• CANopen
• CiA 402
• ros2_control
• Safety watchdogs

Sample incident

The drive moves to another device path

Keep the drive interface stable when another USB serial adapter is connected first.

Full syllabus

8 modules · 24 lessons

1. 01

   Linux devices and electrical evidence

   Trace USB, serial, and controller devices through enumeration, stable names, permissions, power, and wiring.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
2. 02

   Serial and CAN fundamentals

   Inspect framing, bitrate, termination, identifiers, errors, and bus state before protocol decoding.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
3. 03

   SocketCAN and bus diagnostics

   Configure Linux CAN interfaces, filters, timestamps, error frames, and recovery behavior.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
4. 04

   CANopen objects and heartbeats

   Read node state, object dictionaries, NMT transitions, heartbeats, and emergency messages.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
5. 05

   PDO, SDO, and timing

   Choose configuration versus process channels, validate mappings, byte order, and cyclic timing.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
6. 06

   CiA 402 state machine

   Decode statusword, issue controlword transitions, handle faults, and prove operation-enabled state.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
7. 07

   ros2_control interfaces

   Connect hardware lifecycle, state interfaces, command interfaces, controllers, and deterministic update loops.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab
8. 08

   Watchdogs and safe recovery

   Design command timeouts, heartbeats, safe startup, protective stops, and bounded fault recovery.

   Learn the concept, then prove it in two labs:

   Guided lab Independent lab