演示通过 FMC 读取和修改用户 Option Bytes,包括独立看门狗硬件模式配置,并通过 USART2 输出状态。目标工程支持 MDK/IAR。Option Bytes 修改可能触发系统复位;错误配置读保护、看门狗或启动选项可能导致调试受限,操作前请备份并确认器件手册。
- 检查目标 MCU、开发板、SDK 和工具链版本。
- 阅读工程配置及源码中的引脚、时钟和外设参数。
- 编译下载前备份现有固件,并在受控硬件上验证。
- 更多资料请访问 www.geehy.com。
Demonstrates reading and programming user option bytes through the FMC, including hardware independent-watchdog configuration, with status output on USART2. MDK and IAR projects are included. Option-byte changes may reset the system; incorrect protection, watchdog, or boot settings can restrict debugging. Review the device manual before use.
- Verify the target MCU, board, SDK, and toolchain versions.
- Review pin, clock, and peripheral settings in the project and source code.
- Back up existing firmware and validate on controlled hardware before deployment.
- For more resources, visit www.geehy.com.