topic Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example, in S32K

How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Mon, 20 May 2019 03:48:53 GMT

Dears,

Customer download the S32K144 BLDC example to debug their software, and hope to trigger PDB intrrupt to monitor some status, but when set the interrupt enable in Prossor Export, it still cannot go in to PDB interrupt. Can you help to advice?

Thanks & BRs,

Ray Deng

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

razva_tilimpea — Mon, 20 May 2019 06:38:44 GMT

Hi,

The check box from PDB Processor Expert component just enable the interrupt request on PDB side. It doesn't handle NVIC configuration.

Please call INT_SYS_EnableIRQ to activate your PDB request and INT_SYS_InstallHandler to install ISR.

Best regards,

Razvan

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Mon, 20 May 2019 09:06:35 GMT

Hi Razvan,

Thanks for your kindly hep, actually, we added the INT_SYS_EnableIRQ and enabled global interrupt, is there any other place need check?

BRs,

Ray Deng

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

razva_tilimpea — Mon, 20 May 2019 10:21:26 GMT

Hi,

In this case everything should be fine.

Are you sure that PDBIF(from SC register) bit field is set to generate the interrupt?

Razvan

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Mon, 20 May 2019 15:03:28 GMT

Hi Razvan,

Actually, we can use PWM-PDB-ADC genereate ADC sampling, and we cannot capture PDBIF bit, INT_SYS_EnableIRQ already added, Global Interrupt enabled, I DO really not know which would leads to such situation.

BRs,

Ray

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

razva_tilimpea — Mon, 20 May 2019 19:38:23 GMT

Please share your project to check it.

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Tue, 21 May 2019 06:12:10 GMT

Thnanks, Razvan,

Already updated in the first question,

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

razva_tilimpea — Tue, 21 May 2019 08:47:59 GMT

Hi,

This application doesn't change IDLY value, and by default it is 0xFFFF.

In this case CNT value can't be higher than IDLY, so conditions for interrupt request are not matched.

You can update this value by calling PDB_DRV_SetValueForTimerInterrupt and PDB_DRV_LoadValuesCmd.

I don't know exactly which event from you application is expected to trigger this interrupt, but I don't think this PDB event will help you.

Best regards,

Razvan

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Wed, 22 May 2019 13:04:41 GMT

Hi Razvan,

Modified with your advice, it can go into PDB interrupt, but it just go into interrupt every 1us, when PDBIDLY changed. Is there any other place need modify?

Customer use it to check the PWM time position when it generate ADC conversion.

BRs,

Ray

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

razva_tilimpea — Wed, 22 May 2019 13:20:21 GMT

Hi,

PDB doesn't provide this type of interrupt. In RM are mentioned just these interrupt sources:

Trigger which start ADC conversion is not connected to any interrupt request.

Best regards,

Razvan

Re: How to set PDB to trigger PDB interrupt for S32K14X BLDC example,

dannydeng — Wed, 22 May 2019 14:02:31 GMT

Thanks, Razvan,