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QN9080-DK SWD connection

Question asked by Masahiro Kiniwa on Jul 4, 2019
Latest reply on Jul 16, 2019 by Masahiro Kiniwa


I'm using a QN9080-DK with on-board LPC-Link2(J-Link), and I have an issue that the on-board LPC-Link2 couldn't connect to QN9080 by SWD.

It occurred when I programmed the flash by MCUXpresso.

It message as below.

I used MCUXpresso IDE 10.3.1, MCUXpresso SDK 2.5.0 and its sample project.


I tried to program by ISP mode, and erasing the flash by J-Flash Lite.

But I couldn't get a good result, it couldn't connect to the QN9080 by both methods.

(When I use ISP mode, I tried to connect by both USB and COM port.)


Could you tell me how to recover from this issue?



Best regards,