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TMS570LC4357: PWM触发ADC的SOC信号疑问

Part Number: TMS570LC4357

您好,

请问TMS570LC4357中PWM触发ADC的转换信号EPWMxSOCA信号通过PINMMR可产生ePWM_A1和ePWM_A2信号,然后ePWM_A2与ePWM_B逻辑或后产生ePWM_AB信号(见下图)。请问这里使用PINMMR控制产生ePWM_A1/ePWM_A2的意义是什么?这两个信号有何差异(二者为同一信号)?在使用上有何注意事项?

谢谢!

  • the ePWMxSOCA and ePWMxSOCB signals are combined to generate four special signals that can be used to trigger an ADC start of conversion, and hence multiple modules can initiate an ADC start of conversion via the ADC trigger inputs.