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ADS1246的DRDY问题

Other Parts Discussed in Thread: ADS1246

      芯片上电后,保证复位时序,给1246的START 脚输入高电平,然后一直发送时钟(cs为低),DRDY上一直为低电平,根本没有变化,请TI工程师多多指教!

  • 试试让START引脚用pulse(0->1->0)的方式驱动ADS1246,是否DRDY能够有跳变。如果让START一直为高,即采用连续采样,可以试试上电后先保持START为低,然后再给一个跳变使其变成高,看DRDY是否有跳变。