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关于ADS8681,SPI协议发送READ_HWORD指令,读取下一次CS为低时的数据,得到的数据总是错误

Other Parts Discussed in Thread: ADS8681

指令是READ_HWORD+地址+0x00+0x00。spi分四次发送。

下一帧时读取spi,存放在uint8_t read[4] 中。按理来说复位后数据全为零。但我独到的数据永远是错误的,杂乱的。这是为什么?请各位指教ads8681的命令写入和读取。