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Programming nRF52840 Dongle in nRF Connect Programmer

Hi All,

I was trying to program a simple LED peripheral hex file to the nRF52840 dongle. 

Initially I was  modifying an existing sample program from one of the examples given in the SDK.

The example folder contains several supporting boards such as "pca10056", "pca10059", "pca10040" etc...

I first used the Segger embedded studio project given in "pca10056" folder and built the "hex" file. Which is for the nRF52840 DK.

However, when I start to flashing it using nRF Connect Programmer, it prompts me to select a "Softdevice" version. No matter what I choose it fails.

Then I built the source by using Segger project file in "pca10059 "- which is for the Dongle. Now I was able to flash the "hex" file using nRF Connect programmer.

My question is, is there any hardware specific configurations I need to setup when we program a new board?

If I am going to program my own board, what sort of configurations I should change to flash it to the chip?

Thanks 

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