How to use nRF52832 with J-link in KEIL?

[roger.k]

Hi. I just started development with nRF52840.

Press "Setting' button, it shows me "The selected device "NRF52840_XXAA" is unknown .......

And actually it doesn't have nRF52840 device as below.

Then I can see J-link version is V5.10h.

So I installed newest version of J-link(V6.4.0).

But it isn't changed.

How can I install nRF52840 on my Keil compiler?

I need your help.

[Eugene Yu]

Hello Mr.Kwak,

You may has problem to update Jlink DLL.

There are two possibilities make it trouble.

1. Install nRFgo Studio after installed Command line tools.
   1. Actually nRFgo Studio has very older version of J-Link DLL so nRFgo Studio will overwrite J-link DLL to older version.
   2. To fix the issue just install again Command line tools.
2. The tool which is mentioned by Kenneth will not work properly
   1. I had issue that SEGGER J-link update software doesn't detect my Keil. so it doesn't update to latest version.
   2. To fix the issue copy the "C:\Program Files (x86)\SEGGER\JLink_Vxxxx\JLinkARM.dll" to "C:\Keil_v5\ARM\Segger\"

Thanks,

Eugene

[roger.k]

Dear Eugene Yu.

Thank you very much for your detail answer. That's waht I wanted.

You are so brilliant. Every things are working well now.

Thank you. Thank you very much again.