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ADS131M02-Q1: DRDY引脚波形问题

Part Number: ADS131M02-Q1
Other Parts Discussed in Thread: ADS1284, ADS1283

我感觉每次采样数据偏差较大,于是用示波器抓了下drdy引脚的波形,我现在时钟是8mhz,osa设置的是16384,high-resolution模式,然后drdy引脚应该是4ms拉低,但是波形现在在1.5中间拉低了一下,这个回影响到我的中断函数,想问下这是什么原因,我不需要采数据还有很多上去立马下来的脉冲