This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS1120: ADS1120 上电时波形异常,请帮忙分析一下可能的原因?

Part Number: ADS1120

ADS1120由FPGA控制,正常时波形如下:

异常时波形如下:

上电配置的命令为0X43 0XB0D04000,黄色线为FPGA代码的软复位信号,图中可以看出异常时复位信号为高电平时,FPGA马上给SCLK发送时钟信号,正常时需要等2us左右才会发信号(FPGA 时钟节拍导致),

请问一下异常时是前面还存在复位信号吗?导致波形异常,但是示波器抓取的波形中没看到前端有异常电平,麻烦帮忙分析一下出现这种情况的可能原因,感谢。