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PGA970: PGA970EVM GUI ADC读出异常

Part Number: PGA970
Other Parts Discussed in Thread: USB2ANY

在使用PGA970EVM GUI 时,波形发生器已经可以正常工作,输出波形TP70(P1A)(CH1 黄色)以及经过传感器反馈的输入波形TP27(S1P)(CH2 蓝色)如下:

然而当点击ADC READ按键进行读取时,只能读到0.

即使采用ADC3读取内部温度数据,也只能得到0;

请问针对这个情况有什么建议?

多谢!

BRs,

Jason