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P1_0和P1_1用作模拟IIC接口

Other Parts Discussed in Thread: CC2530

我用P1_2和P1_3作为IIC总线的SDA 和SCL 可以正常工作,当把接口设置P1_0和P1_1时,就不行了,我已经把这两个接口接了4.7K的外部上拉电阻.请问为什么不可以?P1_0和P1_1和其他的普通GPIO还有其他不一样吗?(除了不具有上/下拉电阻和驱动电流大以外)