Embedded Serial Log Debug

Overview

Use this skill to make serial logs trustworthy before drawing conclusions from them. Confirm wiring, voltage level, port ownership, baud settings, boot timing, and log source before debugging firmware behavior.

When To Use

Use this skill when:

• The user needs UART boot logs, serial console access, or firmware printf output.
• Serial output is missing, garbled, intermittent, delayed, duplicated, or stops mid-boot.
• The task involves USB-to-UART adapters, screen, picocom, minicom, logic analyzers, boot logs, or console prompts.

Do not use this skill when the problem is already proven to be a higher-level protocol issue unrelated to raw serial capture.

First Questions

Ask for: