Unable to program nRF52940 PDK via JLINK

RE: Unable to program nRF52940 PDK via JLINK

Lisandro Damián Nicanor Pérez Meyer — Wed, 22 Feb 2017 12:37:57 GMT

As long as you don't run Linux or Mac, of course.

RE: Unable to program nRF52940 PDK via JLINK

Roger Clark — Mon, 26 Dec 2016 21:33:02 GMT

@endnode

This is the first nRF DevKit board that I've tried to use with the segger tools

I have an nRF52832 dev kit as well, but I just uploaded using drag and drop to the USB mass storage.

I'd assumed that the Segger programmer on these boards was fully functional, like STM's Discovery and Nucleo line of boards which have STLink adaptors built in, which are fully functional and not cut down versions.

I've have used other nRF51 based boards, but not Nordic's DevKit boards, so I always used various other external programmers.

Looking at JFlash Lite, its so cut down its not worth using, I'll just use JLink Commander instead, (to Flash the SD) as it seems to be fully functional

RE: Unable to program nRF52940 PDK via JLINK

endnode — Sun, 25 Dec 2016 22:14:56 GMT

Is this your first SEGGER J-Link Lite or J-Link OB board (e.g. first Nordic's Dev Kit)? If not then kindly ignore the rest (as I assume you know what you are doing). If so that would explain the confusion: SEGGER SW is normally sold/licensed with their "full" flashing/debugging probes and if you don't have those then you can use only limited functionality. To make it worse you cannot get "full" license for those "Lite" or "OB" boards (as far as I know) so you can either stay with stripped down SEGGER tools (like J-Flash Lite) or use nRF Tools with their "nrfjprog" command-line flasher or use some integration with IDEs like Keil or use your "full" SEGGER flashing/debugging HW with valid license and attach it to "Debug In" (P25) header (see here).

RE: Unable to program nRF52940 PDK via JLINK

Roger Clark — Sun, 25 Dec 2016 21:43:07 GMT

@Jan

Thanks.

Looks like its just JFlash that does not work.

I presumed the since JFlash was displaying errors with the license, that it would not be possible to program the board using the JLink interface.

However, I tried JLink Commander and it works fine, and it was possible to upload via Keil. So I will try a few other IDE's e.g. VisualGDB and Eclipse.

RE: Unable to program nRF52940 PDK via JLINK

endnode — Sun, 25 Dec 2016 11:16:41 GMT

Hi Roger,

Have you ever programmed any device by that J-Link SW package installation on that particular machine? I would recommend to stick with Nordic's nRF Tools (or nRFgo Studio if you insist on GUI based tools). If you insist on SEGGER J-Link/J-Flash then there should be "J-Flash Lite" executable installed with the package which is free license (if you don't use it for commercial/manufacturing purposes). It can erase/program/verify HEX and BIN images for given MCUs.

Cheers Jan