Using J-LINK with RAK3172 (Programming & Debugging)

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1

Hello everyone,

I’m currently working with the RAK3172 using the Arduino IDE and RUI3.

I noticed that J-LINK is listed as an available programmer under Tools → Programmer, but I haven’t found much information about using it on this forum.

I’d like to know:

  • Is it possible to program the RAK3172 via J-LINK?
  • Can we also use it for debugging (breakpoints, stepping, etc.)?

Any guidance or shared experience would be greatly appreciated!

Best regards

2

Welcome to the forum @Nicolas.p

You can use JLink to program the RAK3172 through its SWD interface.

Connection diagram:

image
image1337×778 132 KB

Important is that you have to use a 3.3V supply, JLink does not provide any supply voltage. VTref is only used as reference for the JLink adapter.

J-Flash settings:

image

You can use JLink as well for debugging with an debug application (e.g. Ozone) on your computer.
But I don’t have any guide for that.