MKMxxZxxACxx5 Bare Metal Software Drivers  R4.1.6
Reference Manual
FLL Engaged Controlled by 32.768 kHz RTCOSC

This example initializes frequency-locked loop in FLL Engaged External (FEE) mode clocked by 32.768 kHz RTC Oscillator.

Source code:
/******************************************************************************
* (c) Copyright 2010-2015, Freescale Semiconductor Inc.
* ALL RIGHTS RESERVED.
******************************************************************************
* fllfee_test.c
******************************************************************************/
#include "drivers.h"
void main (void)
{
/* enable clocks to all peripherals - clock mode 2:1:1 (core:bus:flash) */
/* route core clock to PTF7 for monitoring */
/* FLL settings */
while(1);
}
Toolchain support:
IAR EWARM 7.40.7CodeWarrior 10.6KEIL uVision 5.15CrossWorks 3.6ATOLLIC TrueStudio 5.3.0Kinetis Design Studio 3.0.0