TMS320F28379D: TMS320F28379D

您好，

在使用 launchxl_f28379d中使用ADC采样不正确，使用epwm1 soca 作为触发源，采集1.65v基准电压，adc配置如下

EALLOW;
AdcaRegs.ADCSOCFRC1.all = 0x000F;
AdcaRegs.ADCSOC0CTL.bit.CHSEL = 0; //SOC0 will convert pin A0
AdcaRegs.ADCSOC0CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC0CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA

AdcaRegs.ADCSOC1CTL.bit.CHSEL = 1; //SOC0 will convert pin A1
AdcaRegs.ADCSOC1CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC1CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA

AdcaRegs.ADCSOC2CTL.bit.CHSEL = 2; //SOC0 will convert pin A2
AdcaRegs.ADCSOC2CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC2CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA

AdcaRegs.ADCSOC3CTL.bit.CHSEL = 3; //SOC1 will convert pin A3
AdcaRegs.ADCSOC3CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC3CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA

AdcaRegs.ADCSOC4CTL.bit.CHSEL = 4; //SOC0 will convert pin A4
AdcaRegs.ADCSOC4CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC4CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA

AdcaRegs.ADCSOC5CTL.bit.CHSEL = 5; //SOC0 will convert pin A5
AdcaRegs.ADCSOC5CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
AdcaRegs.ADCSOC5CTL.bit.TRIGSEL = 5; //trigger on epwm1 SOCA
EDIS;

其中通道 A0 A2 A4采集电压正常，如下图

但是，其中A1 A3 A5 不正常，如下

请问一下，什么原因导致的，感谢回复。