How to Test Firmware Without Physical Hardware
Most firmware teams test by flashing the board and watching an LED blink. That works until your test matrix is 200 cases, your CI pipeline needs to run on every commit, and the dev kit is on someone else’s desk. Here’s how I test firmware without hardware for roughly 80% of the test surface. The remaining 20% — timing-critical code, analog peripherals, RF — still needs real silicon. But 80% is enough to catch the bugs that matter. ...