S32K146 Adc Channel configurations array with hw trigger

Micha4566465 — Mon, 14 Apr 2025 17:02:09 GMT

Hello,

I create an ADC channel configurations array with PDB trigger-hardware.

But I get only an interrupt for (ControlChanIdx == 0).

I configured the system completely in RTD as you can see in the pictures.

Can you help me why there is no interrupt for (ControlChanIdx == 1)?

My source code:

// Interrupt routine

void AdcConversionCompleteNotif(const uint8 ControlChanIdx)

{

data = Adc_Ip_GetConvData(ADCHWUNIT_0_INSTANCE, ControlChanIdx);

}

int main(void)

{

Adc_Ip_StatusType adcStatus;

Adc_Ip_Init(ADCHWUNIT_0_INSTANCE, &AdcHwUnit_0);

adcStatus = Adc_Ip_DoCalibration(ADCHWUNIT_0_INSTANCE);

while (adcStatus != ADC_IP_STATUS_SUCCESS)

{

adcStatus = Adc_Ip_DoCalibration(ADCHWUNIT_0_INSTANCE);

}

Pdb_Adc_Ip_Init(PDBHWUNIT_0_INSTANCE, &PdbHwUnit_0);

Pdb_Adc_Ip_SwTrigger(PDBHWUNIT_0_INSTANCE);

while (1);

}

Re: S32K146 Adc Channel configurations array with hw trigger

Senlent — Tue, 15 Apr 2025 07:53:03 GMT

Hi@Micha4566465

This problem seems to be caused by setting the delay time of the two trigger channels to be the same.

You can try setting different delay parameters for the two pre-trigger channels.