TMS320F28335: PWM移相后会导致ADC采样点偏移

这种方法我也试了，我用PWM2做了实验，还是在电感电流的下降沿采样的，我的配置如下：

EPwm2Regs.ETSEL.bit.SOCASEL = 2;
EPwm2Regs.ETSEL.bit.SOCAEN = 1;
EPwm2Regs.ETPS.bit.SOCAPRD = 1;
// EPwm2Regs.ETPS.bit.SOCACNT = 1;
// EPwm1Regs.ETSEL.bit.INTSEL = 1;
// EPwm1Regs.ETSEL.bit.INTEN = 1;
// AdcRegs.ADCTRL2.bit.EPWM_SOCA_SEQ1=1; //start AD
// asm(" RPT #10 || NOP");

while (AdcRegs.ADCST.bit.INT_SEQ1== 0); // Wait for interrupt
AdcRegs.ADCST.bit.INT_SEQ1_CLR = 1;
mMainRlyOn;
wDcIlACurrSample = (INT16U)(((ADCRESULT2>>4)+(ADCRESULT3>>4))/2);
fDcIlACurrReal = ((float)(wDcIlACurrSample * 3)/4095);
fDcIlACurrReal = (fDcIlACurrReal - 1.495)*70-0.132882819;
// fDcIlACurrReal = fDcIlACurrRealy - fDcIlACurrRealOffset;

AdcRegs.ADCTRL2.bit.RST_SEQ1 = 1;

你是想让所有PWM对应的AD采样在同一时刻发生？还是每一路都自定义采样发生的时间？