大家好,由于项目需要 目前只有想用两个只能做普通IO(GPIO_28、TMS)的引脚软件实现I2C功能
请问需要外接上拉电阻吗?
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大家好,由于项目需要 目前只有想用两个只能做普通IO(GPIO_28、TMS)的引脚软件实现I2C功能
请问需要外接上拉电阻吗?