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.

TMS570 4357 使用ETPWM SOC 触发ADC转换,但是AD通道波形异常

Other Parts Discussed in Thread: HALCOGEN

通过HalCoGen配置的,利用ETPWM1生成SOCB触发ADC1 Event Group,采样外部信号发生器的正弦或者方波,发现会有个跟PWM波频率一致的信号叠加到外部的信号上,所有通道上都会有这种情况,我测了ADC1IN0--23都会有,而且越靠近AD IO,越明显,感觉是AD管教内部出来的,请帮忙看看问什么会有这个东西,怎么配置才不会有。