1、根据SPI协议,主机发送的数据同时,从机就会返回数据。这样的话,是不是说明这个周期主机发送读取从机运行状态的指令,然后要等到下一个周期从机才会返回运行状态给主机?这样处是不是延后一个周期,还是我理解错误?
2、用SPI口能实现半双工吗?
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