topic Re: MCAL/RTD support for ANAMUX input selection (DCMRWF1 register) in S32K

MCAL/RTD support for ANAMUX input selection (DCMRWF1 register)

DirkEtzler — Wed, 18 Feb 2026 13:05:18 GMT

@PetrS Looking through the example "S32K344_PIT_SW_ADC_ANAMUX_RTD600" the input selection for the ANAMUX is done via "direct" access of the DCMRWF1 register.

Is/are there already an MCAL or RTD function(s) available to enable the voltage dividers for the individual internal voltages and to select the input for the analog multiplexer? Or do I need to write my own functions to do that?

Re: MCAL/RTD support for ANAMUX input selection (DCMRWF1 register)

PetrS — Thu, 19 Feb 2026 08:41:32 GMT

Hi Dirk,

some RTD drivers probably use DCM_GPR registers internally when needed, but there is no dedicated RTD driver or a public API for arbitrary DCM_GPR access.

BR, Petr

Re: MCAL/RTD support for ANAMUX input selection (DCMRWF1 register)

DirkEtzler — Thu, 19 Feb 2026 11:19:40 GMT

I was hoping that the ADC RTD would have an API to select and enable the ANAMUX functionality. But I create my own control.