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J 回复于
@ou13556101201 不是很清楚你想要达到怎样的效果。 SPI协议规定一次传输中，CS是持续有效（你所说的拉低）。如果一次传输是4字节，那么就是CS包住连续的32个CLK；如果一次传输是1字节，那么就是CS包住8个CLK。 c9f869fa-7b8f-4855-bbb9-345e8dbd1e92-image.png