Flashing nrf52840 dongle with J-Link Mini EDU?

RE: Flashing nrf52840 dongle with J-Link Mini EDU?

JONATHAN LL — Thu, 17 Apr 2025 23:34:14 GMT

[quote user="Oli@Alpha21"]The problem is the other end of my pogo connector doesn't fit on my SEGGER J-Link edu mini..[/quote]

Ah, sorry for misunderstanding the picture.

The pogo connector is just a bunch of wires so there is no problem jumping the connection between the two. Just make sure you get the pin out correctly.

https://embeddedcomputing.weebly.com/segger-j-link-edu-mini-programmer-debugger.html

VTref, GND, SWIO and SWDCLK are the ones you need. That should do the trick.

Regards,
Jonathan

RE: Flashing nrf52840 dongle with J-Link Mini EDU?

Oli — Wed, 16 Apr 2025 04:06:52 GMT

The problem is the other end of my pogo connector doesn't fit on my SEGGER J-Link edu mini... See the two connectors I am holding in the picture. Are they the same pins but the Tag-Connect connector is just bigger? If that's the case I'll just put jumper wire to connect the small connector from the J-Link to the big one from Tag-Connect.

RE: Flashing nrf52840 dongle with J-Link Mini EDU?

JONATHAN LL — Tue, 15 Apr 2025 22:39:15 GMT

[quote user=""]Or maybe I can try to connect them manually with jumper wires?[/quote]

You can do this.

P1 is possible to use but you need to solder on a connector(HDR_2x5-SMD-1.27mm) here or just solder directly on to it. The dongle does not come with the connector mounted.

But if you are going for the soldering directly on to it option then you also have other options.
The J2 pogo pin connector interface can also be used with a 10 pin pogo connector.

Looks like you have a tag pogo pin connector there, it should work if it is 10pin.

Regards,
Jonathan