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I2C需要上拉电阻而SPI不需要,P1.7引脚应该怎么玩.(哪个是SPI的输入,I2C的数据线),还有P1.6...
上拉不影响SPI使用，复用的时候只需要在程序中配置即可。
入楼上所说，使用PXSEL寄存器配置。
