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ADS1278数据读取问题

Other Parts Discussed in Thread: ADS1278, ADS1278EVM-PDK

你好,我是第一次使用ADS1278,现在当初的数据不正常,有几个问题请教解答。

1)SCLK现在我是通过ARM7的普通IO口控制,当DRDY变低时在中断程序中,控制SCLK的高低电平,来读取DOUT1的数据(SPI TDM模式)。这种方法可行吗?手册上说SCLK需要连续输出是什么意思?难道我不读时也要SCLK脉冲?