Hardware Interface Debug

Overview

Use this skill when firmware symptoms may actually come from board-level signals. Verify power, reset, clocks, pin mapping, voltage levels, and measured waveforms before treating the issue as a software bug.

When To Use

Use this skill when:

• The issue involves power rails, reset, crystals, boot pins, connectors, level shifters, pull-ups, or signal integrity.
• A peripheral or debug interface has no signal, wrong voltage, ringing, stuck line, or intermittent behavior.
• The user has a schematic, board photo, oscilloscope capture, logic analyzer trace, or pinout question.

Do not use this skill when the hardware path has already been verified and the issue is clearly inside firmware logic.

First Questions

Ask for: