nRF5340 based debugger

[Roman Veselskyi]

Hello,

I’m wondering if there is already a project or if one is planned to create a debugger based on the nRF5340.

Currently, we use the DK to flash and debug custom PCBs based on nRF chips, but it’s not always ideal, especially when we need to flash devices in the field.

I was thinking about a USB dongle-style project that uses only the nRF5340 as an interface MCU, with just SWD output. This would make it much easier to work with our custom boards.

If such a project exists, could you please share the link?

If not, we could create an open-source version ourselves, but we need a special firmware for this - may it be shared with us?

[Hung Bui]

Hi Roman, 

Making a debugger with Segger Jlink firmware would require a license from Segger. So it's not possible that we can provide the nRF53 firmware for you to create your own debugger unfortunately. 
But the idea of having a smaller debugger made by Nordic is good. I will forward it internally. 

What you can do is to think of using OpenOCD instead of Jlink. It's free to use but you need to dig into it and do some big banging I assume. 

[Turbo J]

Have a look at OpenOCD. May need to compile a git version for proper NRF53x support.

[Roman Veselskyi]