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我如果在连了陀螺仪的情况下还在代码中用了串口通信的话,就无法顺利的运行代码,但如果我把所有和串口通信有关的都删除的话代码就能顺利运行了,这是为什么?
原因:IMU扩展板使用了P4P5引脚,和串口3引脚冲突。
解决办法:不使用串口3,使用串口1。