读取device ID,没有读到。(目前只操作了spi,其余的pin展时没有操作)
检查了一下各个电压,和spi 相位这些。没啥问题,还是读不出设备id
上电就直接操作 spi 去读取 设备id,没有 操作 reset ,gpio这些引脚
帮忙看看是什么问题以及怎么解决?



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