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调试ADC,配置完成之后测试模式输出的数据全部都是对的,为什么采样输入单频正弦波信号就是错的呢?

Other Parts Discussed in Thread: ADC12DJ3200

按照TI官网给的demo做Ramp测试模式,数据完全正常。

然后没有修改参数将Ramp test mode改为normal operation后,数据错误。

240bit的数据我分为了20路每路12bit,仿真结果只有某四路为正弦波。