How to write CMU driver? Is there sample code?

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

How to write CMU driver? Is there sample code?

988 Views
xiaohuang
Contributor I

Can CMU be configured in S32? How to write CMU driver? Is there sample code?

0 Kudos
7 Replies

967 Views
xiaohuang
Contributor I

 

I am using the S32K118 ,Then I don't know how to configure the CMU, how to verify that the configuration is correct.

0 Kudos

970 Views
Senlent
NXP TechSupport
NXP TechSupport

Hi@xiaohuang

  Can you tell me which device are you using? 

  CMU is available in only S32K11x series of devices. Other products in the S32K14x series do not have CMU.

BR!

    Jim,

0 Kudos

956 Views
Senlent
NXP TechSupport
NXP TechSupport

Hi@xiaohuang

       I have sent you a routine in private,this demo just for your refenence.

 

0 Kudos

952 Views
xiaohuang
Contributor I

Ok, i got it, thanks you so much .I have another question, how do i test the CMU?

0 Kudos

949 Views
Senlent
NXP TechSupport
NXP TechSupport

Hi@xiaohuang

        Try to manipulate the thresholds in HTCR and LTCR registers,then generate a Loss of Clock reset when monitoring the FIRC.

BR!

    Jim,

0 Kudos

873 Views
xiaohuang
Contributor I

Thank you for the example you provided last time. How is the CMU1 threshold calculation formula derived? No related formula found on the document

0 Kudos

960 Views
xiaohuang
Contributor I

I am using the S32K118 ,Then I don't know how to configure the CMU, how to verify that the configuration is correct.

0 Kudos