I use printfs and LEDs frequently but having an in circuit debugger can be invaluable for catching problems in complex code, especially where printfs or logging disrupts timing. The CNC software (grblHAL) that runs on the board is almost impossible to debug via printf. In fact the lead developer has stated that he won't do any more ports to a processor that doesn't have HW debugging.
Statistics: Posted by phil from seattle — Tue Mar 04, 2025 5:39 am