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ads8684 spi读取的值都是0值

Other Parts Discussed in Thread: ADS8684

大家好,目前我们在使用ads8684过程中遇到如下问题:在ads8684通道0中接入3.3v直流信号,但是通过spi读取的值都是0值。在软件中,我先发送通道0选择指令0xc000,然后发送no_cp指令0x0000,然后直接读取数据。

请问上面的流程是否正确,如不正确,那么在软件中读取Adc的采样值时应当如何操作,有没有应用层的参考程序可用?