J-link and SWD programming for nrf52 vscode and segger

[Muhammad Usman]

Hi All!

I am using nrf52833DK and able to program with segger studio and vs code studio extension of nrf connect sdk. Now the issue is that I have designed the custom board for nrf52833/20 and I am using SWCLK, SWDIO,GND, and VDD to load the program using nanoDap v2.3( for more detail please follow the link below)

https://github.com/wuxx/nanoDAP/blob/master/user_manual_en.md

I am able to debug and load the program using segger embedded studio with J-link connectivity option in the target drop-down menu

Now the issue is that when I load the program in vscode studio extension of nrf connect sdk using the same connections as mentioned above then i am unable to detect the device/nrf52833 

can you please help me in this regard? 

Thanks & Regards,

Muhammad Usman

[dejans]

Hi,

You could try pressing "Refresh Connected Devices" on the right side of "Connected Devices" in nRF Connect extension for VS Code. 
You could also try using nrfjprog --ids which displays serial numbers of all debuggers connected to your PC.

Best regards,
Dejan

[Muhammad Usman]

Hi

Thank you for your response!

When I connected the nrf52833DK it shows the serial number. But when i connected the above mentioned setup in my previous message then no response . you can see the image below!

Thanks!

[dejans]

Hi,

Based on the link that you provided, you are using DAPLink as a debugger. When you use on-board debugger with nRF52833DK, you can use nrfjprog. However, when you do not use on-board debugger (as it is in your case with custom board), then you would need to purchase J-Link debugger from Segger to be able to use nrfjprog tool.

Best regards,
Dejan

[Muhammad Usman]

Hi,

Thank you so much!

Now I am trying this link to program the external custom board

 https://devzone.nordicsemi.com/f/nordic-q-a/14058/external-programming-using-nrf52-dk 

I followed the same connections as mentioned last. 

but still getting this error

 Best Regards,

Muhammad Usman

[dejans]

Hi,

You should ensure that you do not have any active debug sessions opened, J-Link Viewer is not running, and all other IDEs that might interfere are closed.
Did you try "west flash" command multiple times?
Which version of J-Link do you use? Do you have multiple versions of J-Link?
Which version of nrfjprog do you have?
J-Link and nrfjprog versions can be checked using "nrfjprog --version" command.
Have you tried using "west build" for building and nrfjprog directly for flashing?
Does this issue appear only on one specific computer?

Best regards,
Dejan