AnsweredAssumed Answered

Why does UART not work at Max Clock Configuration

Question asked by Seth Tucker on Mar 21, 2016


I can't get UART to work when I change the clock configuration form the default. This can be recreated by setting up a new project with KSDK 1.3, modifying the UART non blocking example to work in the new project, and the adding

 

#define CLOCK_SETUP     1u

 

to the system_MK64F12.h file. If the clocks are left to run at the default speed, UART works perfectly.

 

I've included my example as an attachment. I am using the FRDM K64F board.

Original Attachment has been moved to: SerialTest.zip

Outcomes