Measure MCP5777c pheripheral clock frequency

cancel
Showing results for 
Search instead for 
Did you mean: 

Measure MCP5777c pheripheral clock frequency

393 Views
shitalshitole
Contributor II

Hi ,

I  have to measure/verify different pheripheral clock frequency like eQADC,DSPI,PIT,eTPU ,M_CAN etc of MCP5777c microcontroller .I am using evalution board of MCP5777c and IDE S32DEv1.2 .So please suggest me any solution to measure all these pheripheral clock frequency.

Labels (1)
3 Replies

51 Views
petervlna
NXP Employee
NXP Employee

Hi,

On MPC5777C are implemented CMUs (clock monitor unit) for clock frequency violation measurement.

pastedImage_1.png

Please refer to reference manual  Chapter 22 Clock Monitor Unit (CMU) for details on how to use them.

Peter

51 Views
shitalshitole
Contributor II

Thanks for your valuable reply ,I have studied CMU module but I want to measure all  pheripheral frequency using DSO(Digital storage Ocsilloscope)so,is there given any test point on EVB of MCP5777c ?

0 Kudos

51 Views
petervlna
NXP Employee
NXP Employee

Hi,

There is CLKout for clock source frequency measurement.

Rest you have to calculate from desired dividers in AUX modules.

Peter