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mfang2.0
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Opened by mengxiangchen@mengxiangchen
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[bug]业务：PIN占用后，外设开启报错

问题描述

  1. PIN40(PC5)配置成OUTPUT
  2. UART5 配置成Bidirectional
  3. 报错
  • 而且单独配置，生效的并不是PIN40，而是PIN56/57