topic frdm-k22f + IAR (j-link) cannot connect in Kinetis Microcontrollers

frdm-k22f + IAR (j-link) cannot connect

shkim9 — Wed, 10 Apr 2019 08:17:36 GMT

I am using the frdm-k22f board with IAR.
If connect J-link to J11 header (SWD Debug) and click Debug button in IAR, it will get error that connection is not possible as follows.

InitTarget (): PCode returned with error code -1.

All H/W connections have been verified.

I do not know what is happening.

Re: frdm-k22f + IAR (j-link) cannot connect

Sebastian_Del_Rio — Wed, 10 Apr 2019 20:20:43 GMT

Hello Kim, I hope you're doing well,

Could you please check if the project is configured as follows:

As you can see from the schematic, the J-link connection is through a SWD interface.

Also, could you please check if both J10 and J13 jumpers are disconnected?

Please, let me know if you continue to have any problems.

Best regards,

Sebastian

Re: frdm-k22f + IAR (j-link) cannot connect

shkim9 — Wed, 10 Apr 2019 23:46:09 GMT

hello sebastian.

A new error has occurred\

It seems that the OpenSDA bootloader is in flash.

so if i click "yes" button, bootloader may be erased.

I'll try if I can get an extra frdm board later.

best regards.

Re: frdm-k22f + IAR (j-link) cannot connect

shkim9 — Thu, 11 Apr 2019 04:36:22 GMT

this problem solved.

after unsecure device ("yes" click) , power off/on, debug connection successfully established.