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新手不是太明白如何把一个引脚一直配置成低电平 比如 GPIO14



新手不是太明白如何把一个引脚一直配置成低电平 比如 GPIO14

电路图上 gpio14连着 EEPROM 的写保护 配置成低电平才能写数据 我该怎么操作