topic Re: S32K3 EMIOS channel X usage in S32K

S32K3 EMIOS channel X usage

francescovico — Tue, 03 Jun 2025 06:09:03 GMT

Hello,

It's possible use a Channel X to generate counter bus and in the same time use the channel as input capture , output compare or pwm?

Regards, Francesco.

Re: S32K3 EMIOS channel X usage

PetrS — Tue, 03 Jun 2025 12:35:52 GMT

Hi,

yes, that is theoretically possible, but not used this way, I think. In this case internal counter (providing counter bus) is free running, so you cannot control counter bus period, except of OPWFMB mode.

BR, Petr

Re: S32K3 EMIOS channel X usage

francescovico — Wed, 04 Jun 2025 12:00:31 GMT

Hi,

to use my hardware it's mandatory use ch 0, ch 8 and ch 16 to generate counter bus and at same time to generate a PWM.

Do you have an example how I can do this?

Regards, Francesco.

Re: S32K3 EMIOS channel X usage

PetrS — Wed, 04 Jun 2025 13:04:51 GMT

Hi,

does it mean ch0 need to generate PWM and serve counter bus B, similarly for other channels?
If yes you can simply config channel for OPWFMB mode and respective counter bus will count with period configured in OPWFMB mode.

BR, Petr

Re: S32K3 EMIOS channel X usage

francescovico — Fri, 06 Jun 2025 08:35:21 GMT

Hi,

I'm trying to configure EMIOS0 CH8 to generate PWM and counter bus C for CH9...CH15.

Using ConfigTools as your suggestion there is error below :

EMIOS_error.png

EMIOS_0_CH8.png

EMIOS_0_CH9.png

What is wrong?

Regards, Francesco.

Re: S32K3 EMIOS channel X usage

PetrS — Fri, 06 Jun 2025 09:37:12 GMT

Hi,

what I wrote is the theoretical possibility of the HW, but config tool does not allow to config that.
For the error you need to select master bus from the one configured in MCL component, this offers only MC/MCB modes. But config tool does not allow you to use the same channel for 2 modes.

BR, Petr