S32K312 How to configure the core clock to 3MHz in StandByMode

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

S32K312 How to configure the core clock to 3MHz in StandByMode

Jump to solution
1,512 Views
Simon-Liu
Contributor V

Hello

I saw in the S32K3xx Low Power Management.pdf that there is such a description in the [6.3. VLSR mode entry] chapter [FIRC must be divided by 16 to provides a 3 MHz clock source for the core, the bus, the peripheral clocks and flash memory access mode (750 KHz).].
I use the DS tool to configure a clock tree different from RUN Mode, which uses FIRC as the clock source, but the FIRC clock cannot be divided by 16 to assign to CORE_CLK, and the value of clock division is at most 8.
How to divide FIRC into 16 when entering StangBy?

BestRegards

0 Kudos
Reply
1 Solution
1,404 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Click on Fast RC, an on the right side you may choose a frequency.

davidtosenovjan_0-1688025547661.png

 

View solution in original post

6 Replies
1,483 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Hi, could you give me reference to S32K3xx Low Power Management.pdf?

0 Kudos
Reply
1,481 Views
Simon-Liu
Contributor V

Hi @davidtosenovjan 

Please use the attached document

0 Kudos
Reply
1,444 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Following register allows to setup FIRC divided by 16:

davidtosenovjan_1-1687937396375.png

 

 

davidtosenovjan_0-1687937367546.png

 

1,441 Views
Simon-Liu
Contributor V

Hi @davidtosenovjan 

Thanks for your answer, can you please tell me how to configure this register using DS tool?

SimonLiu_0-1687938405306.png

BestRegards

0 Kudos
Reply
1,405 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Click on Fast RC, an on the right side you may choose a frequency.

davidtosenovjan_0-1688025547661.png

 

1,402 Views
Simon-Liu
Contributor V

Hi @davidtosenovjan 

Thank you very much for your answer, I understand.

 

BestRegards

0 Kudos
Reply