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I can't use Internal Reference 48MHz for MCG in FRDM-K64F

Question asked by Alessio Paolucci on Jan 16, 2015
Latest reply on May 5, 2015 by Mark Butcher

For use IRC48M like source of MCG I set:


MCG_C7_OSCSEL = 2

 

but when I go in fei2fbe or fei2fee transinction function, after updating the MCG register the MCG_S didn't update and the mcu rest blocked in the control of MCG_S register.

 

Help me! How can I use IRC48M like MCG source?

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