Segger is not working in nRF52 Evaluation kit

[Mani]

Hi,

I tried to use nRF52 evaluation kit to program my custom board for that I have used Debug port P19 in evaluation kit. It was working in the beginning but after sometime segger in evaluation kit is not working.Power ON LED also not glowing. 

Ho to debug this to make segger work?

[Håkon Alseth]

Hi,

 

Are you referring to the LED on the DK that does not light up, or is it another LED on your custom board?

If it is the LED on the DK, you could try another USB cable to see if that is the issue (and check on other computers).

If that does not work, hold in the RESET button and power cycle the kit. Does it now start to blink? If yes; then it should come up with a drive labeled "BOOTLOADER".

Download and copy this .bin to that drive, wait 10 seconds then power cycle the board again: nRF5x-OB-JLink-IF

 

When using the debug out from header P19, it is very important that your custom board has the same voltage as the nRF5x-DK (3V nom.).

If the nRF5x-DK is in order, and it fails to program or connect to it after some time, I suspect that the battery in your custom board is dead.

 

 

Cheers,

Håkon

[Naveenkumar]

thank you..So Much it Worked For me ..i was Able to Make my DK Work Again