CANopen Bench: a web-based CANopen test bench built on python-can

[NobseVomBerg]

Hi all,

I've been building CANopen Bench, a browser-based tool for testing and controlling CANopen devices on a hardware bench, and python-can does all the bus work underneath.

What it does:

• scans the bus and matches devices to their EDS by identity (0x1018)
• reads and writes objects via SDO, NMT control, LSS addressing (CiA 305)
• runs declarative YAML test cases against a real device, with HTML reports
• firmware download (the device-specific protocols plug in)
• live trace with SDO/PDO/EMCY decoding, CSV and candump export

How it uses python-can:

• IXXAT, PCAN and Vector adapters go through python-can's own backends, so adapter support follows python-can
• an adapter python-can doesn't cover (CPC-USB/ARM7) got its own backend, registered through the can.interface entry point and shipped as a separate package
• a demo mode simulates devices from EDS files, so it runs without any hardware

pip install canopen-bench
canopen-bench          # → http://127.0.0.1:8000

MIT licensed: https://github.com/NobseVomBerg/CANopen-Bench

Feedback is welcome, especially from anyone running it with adapters I haven't been able to test: PCAN is wired up but has never seen a real device here.