S32K144 Set FTM Clock source as 32khz by using RTC_CLK problems

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S32K144 Set FTM Clock source as 32khz by using RTC_CLK problems

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julywu
Contributor II

hi,the SDK i used is RTM3.0. i want a low frequency like 1khz to use FTM counter,so i use RTC_CLK as my FTM clock source.

p1.JPG

my processor expert setting show in the next picture.

p2.JPG

but after i initial every things,i use FTM_DRV_GetFrequency() function after initialization,the FTM frequency is 250000hz=8000Mhz/32.

why the frequency setting didn't make effects?

@Robin_Shen@nxp

 

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