dear all，
我适应SPI DMA方式block，每次接收一个字节。
发现CLK在大于100k时，接收的误码率极高，，这个时候输出正常。
CLK设置位80K就非常稳定。 难道SPI的输入管脚MISO 上升下降沿速率这么低？ 还是需要哪里特殊配置下？
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