Hi Vasudhevan G,
Do you mean you want to connect the external JLINK to the MIMXRT1064-EVK board, right?
If yes, please disconnect J47, J48, J49, J50, these connector will use the on board debugger.
After you disconnect the above jumper, then you can connect your external JLINK to your J21 interface.
You can use the JLINK commander and the SWD interface to connect the RT chip, can you find the ARM core?
If you can find the ARM core, then you can use it debug the chip.
If your debugger still can't work, you can try to erase the flash at first, then try it again.
Wish it helps you!
If you still have questions about it, please kindly let me know.
Have a great day,
Kerry
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you
