K20: how to know the current core frequency?

[huishao2]

Hi -

I am working on MK20DX128VFM5 with MQX4.1's k20d50m BSP. The k20 is clocked with a 8MHz crystal. How can I calculate the current core frequency?

I am reading through the manual, seems like it is related to PRDIV0 and VDIV0 etc settings.

Thanks!

Hui

[soledad]

Hi Hui Shao,

According with the Getting Started document (page 32), the core clock for the TWR-K20D50M is 48MHz.

If you want to modify the clock configurations, I suggest you to follow the attached document.

I hope this helps, have a nice day!

Have a great day,
Sol

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