AnsweredAssumed Answered

Strange waveform measurement of Reset pin

Question asked by sun man kim on Dec 15, 2014
Latest reply on Dec 18, 2014 by sun man kim

I was making a sample board using the MK64FN1M0VLQ12


Apply the power and confirmed the clock and reset.


But this strange wave was measured at reset pin. like as below,


My sample board have a 10K  ohm pull up resistor.

Regardless of the existence of the pull-up resistor, this waveform is

always measured, Like the attached picture.

It seems like a reset pin directly drives High-Low as the output pin.

So I am the SWD debugging using the J-Link Tool Fail to proceed.

Is there a way to fix this problem?