could not find core in coresight setup

[albertdoe]

Using Segger J-Flash v6.32g, processor MK22FN1M0VLH12. J-Flash Target Connect shows (in the log)

Connecting ...
 - Connecting via USB to J-Link device 0
 - Target interface speed: 4000 kHz (Fixed)
 - VTarget = 3.325V
 - ERROR: Could not find core in Coresight setup
 - ERROR: Failed to connect.
Could not establish a connection to target.

[tbiberdorf]

Hi Jing:

I'm using a K60DN512VLL10 and I encountered the same "could not find core in coresight setup" problem.

I'm using Segger V6.56B

I connected with J-Link Commander V6.56b to attempt to unlock my core as suggested by Jing, and the command tool is unable to connect.

It appears to unlock with success but cannot erase.  It encounters the same problem:Could not find core in Coresight setup.

Can you provide other suggestions? 

[jingpan]

Hi Albert,

If there is no other hardware issue, I guess your chip is locked. Please see this link:

https://community.nxp.com/message/1013892 

Regards,

Jing