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spi传输时，ti作为从机，时钟设为40Mb，模式是0。现在硬件时序上发现主机侧的MISO数据建立时间不足，1843侧有没有寄存器可以改善这个情况？
您可以看一下SPIDELAY寄存器，可以微调时序。https://www.ti.com/lit/ug/swru522e/swru522e.pdf
