Using a nRF52840 for production programming with SWD

[atlesilgjerd]

Hi!

I want to program boards in production by using the SWD interface from a nRF52840. The image will be sent from a PC to the nRF through the USB-virtual serial port.

I will therefore not use a development kit or a segger to do the programming. I do not need to debug with the SWD, just donwload and verify.

Do you know if there is any existing code for this, or if there are open source SW for using the SWD to program the nRF family?

I have found https://github.com/ARMmbed/DAPLink but that is for another processor and not the nRF52840.

It would save me a lot of time if I could base it upon existing open source SW.

best regards,
Atle

[Amanda Hsieh]

Hi Atle,

I want to program boards in production by using the SWD interface from a nRF52840. The image will be sent from a PC to the nRF through the USB-virtual serial port.

 The nRF52840 DK supports programming and debugging external boards with nRF51 Series or nRF52 Series. To debug an external board with SEGGER J-Link OB IF, connect to the Debug out connector (P19) with a 10-pin cable. See Debug output section. Please also provide 3.3v power supply to the custom board. 

You can use nRF Connect Programmer (Programming) or nRF Command Line Tools (Programming SoCs with nrfjprog) to program the custom board. 

-Amanda H.

[atlesilgjerd]

Hi Amanda,

I think maybe there is a misunderstanding. I want to control the SWD interface from a nRF52840 chip and program another chip. I was just wondering if someone else already has made the source code for it. I have used Segger many times before, but I am considering doing the SWD interface myself.

best regards,

Atle 

[Amanda Hsieh]

Hi Atle, 

Sorry for the misunderstanding. Unfortunately, we don't have the source code as you require. If you want, we can make this case public to other experts on this forum. 

-Amanda H.

[atlesilgjerd]

Hi,

Ok thanks. Yes please do it public and lets see if anyone has anything. :-)

best regards,

Atle