Diagnose BU03 UWB wiring and SPI communication issues on STM32F407IGHx.
npx skills add https://github.com/51hhh/BU03 --skill bu03-hardware-reference
Please help me install this Agent Skill. Skill: bu03-hardware-reference Source: https://github.com/51hhh/BU03/tree/main/.github/skills/bu03-hardware-reference Command: npx skills add https://github.com/51hhh/BU03 --skill bu03-hardware-reference
This Skill helps you diagnose BU03 UWB module hardware issues quickly, especially when checking pin wiring, SPI communication, DW3000 device identity, and basic runtime faults on an STM32F407IGHx platform.
Use this skill to inspect the BU03 wiring and explain the most likely cause of a failed DW3000 DEV_ID read.
High-intent search queries and answers about installing and using this skill.
To fix DW3000 DEV_ID readback failures on STM32F407, verify your 3.3V power supply and ensure the SPI transfer runs continuously with the CS pin held low. This Skill diagnoses incorrect BU03 wiring and floating MISO issues.
The correct SPI pinout for BU03 UWB hardware debugging uses a known-good 6-wire SPI connection. This Skill confirms the required wiring and clearly lists which DW3000 control pins are intentionally left unconnected.
To handle DW3000 IRQ without a hardware wire on STM32F407, implement polling-based IRQ handling. This Skill provides a fallback approach by checking the SYS_STATUS register directly in the main loop.
Your BU03 UWB module fails to initialize due to incorrect DW3000 transfer modes or status signal errors. Use this Skill to verify wiring, validate debug variables, and inspect LED status behavior.
A limitation of polling SYS_STATUS for DW3000 events is the lack of immediate hardware-triggered responsiveness. This approach serves as a fallback for systems lacking a physical IRQ wire, requiring continuous main loop checks.
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