chsh-sk-ncs-3-dev-debug

Start with serial capture and reset to read the boot log, after verifying Board Configurator settings in nRF Connect for Desktop. External memory is disabled by default, which causes JEDEC ID read failures that look like firmware bugs but are hardware configuration issues.

Use the Zephyr SDK arm-zephyr-eabi-addr2line, not arm-none-eabi-addr2line, against the per-app zephyr.elf in the sysbuild sub-directory. Decode both the PC (faulting instruction) and LR (calling function) addresses from the fault dump.

Silent reboots during reconnect typically indicate a system workqueue stack overflow, since the reconnect path uses about 4488 bytes of stack. Enable CONFIG_LOG_MODE_IMMEDIATE to surface the hidden fault dump, then set CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=6144.

Yes, the workflow integrates Saleae logic analyzers and JLink probes through MCP servers for SPI/I2C bus capture, memory inspection, and CPU halt/resume. These are used when UART logs alone cannot reveal protocol timing or memory-state issues.

Run 10 iterations as the minimum acceptance gate and 20 iterations for a release claim. The loop test resets the board, connects WiFi, and verifies status each cycle, logging per-iteration pass/fail results.

Confirm the exact board and VCOM port, verify the port is not held by another process using lsof, and create a session log file for live monitoring. Wrong port selection produces silently misleading output.