MKL25Z128VLK4 keeps reseting

[aliasadzadeh]

Hi,

After playing with FRDM platform,I just started my own PCB.This this the schematic for it, But I do not know why the reset pin keeps toggling!? Please see the picture,

So do you have any Idea what's going on wrong?

[kerryzhou]

Hi  Ali Asadzadeh,

    To a new out of factory kinetis chip, reset pin keeps on reseting is the correct wave, after you download a code to the kinetis flash, the reset will not reseting.

    Please download a code to your chip at first, then you can check it again.

Wish it helps you!

Have a great day,
Jingjing

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[aliasadzadeh]

Thanks, the problem is that my J-link can not detect the chip because of the reset pin,so the question is how I should program the chip?

Regards

[kerryzhou]

Hi Ali Asadzadeh,

     The new chip's reset signal won't influence the JLINK detect, please use the JLINK commander, whether it can find the ARM cortext M0+ core? If it can't find the core, you need to check your hardware, whether your JLINK signal to the chip is correct?

    Besides, now, how many board meet this problem?

Best regards,

Jingjing