Let me add a question for I2C on FRDM-KE02Z.
On my FRDM-KE02Z, the oscillator has already removed (for internal clock, #define USE_FEE commented out in ke02_config.h) and an external I2C master connected instead.
Now I'm configuring I2C from PTA3/PTA2 to PTB7/PTB6.
On I2C Slave Demo sample, following code is added in sysinit.c to change the pin.
sSIMConfig.u32PinSel |= SIM_PINSEL_IICPS_MASK;
Do I need other changes on the software?