Flashing holyiot using NRF52840 DK

RE: Flashing holyiot using NRF52840 DK

amitraj — Tue, 31 Jul 2018 11:20:44 GMT

Let me confirm this worked very well, as you had explained.

The flashing action acted seamlessle, and i confirmed that not the DK but the external module was programmed by flashing altogether different application in the external module.

This process works.

Thank you again.

RE: Flashing holyiot using NRF52840 DK

amitraj — Mon, 30 Jul 2018 12:35:36 GMT

Hello,

Thank you! Really!

This is very clear to me now. i will try this out and confirm back too. Thank you once again.

-amit

RE: Flashing holyiot using NRF52840 DK

Einar Thorsrud — Mon, 30 Jul 2018 12:16:42 GMT

Hi,

You use the exact same tools (such as nrfjprog) to program the external device using the nRF52 DK as you do to program the nRF52832 on the nRF52 DK itself. In fact, you will not see any difference whatsoever.

The reason is the GND Detect signal, which you can see in the post you linked to. When you connect the debug out port of the DK to the external board/module/device that is to be programmed, the GND detect will be pulled low, and the onboard debugger will use the programming lines on the debug out port instead of the lines going to the onboard nRF52832 chip.