nrf52 dk not working.

RE: nrf52 dk not working.

vishal.roy — Tue, 22 Sep 2020 15:02:20 GMT

I have the same issue on 2 dk.Was working perfectly fine and now both are dead.Does not show up in Device manager either

RE: nrf52 dk not working.

Thomasthomas — Thu, 04 Jun 2020 13:28:14 GMT

no..only this two DK's..but one dk works if a usb is connected and power swtch changes to usb

RE: nrf52 dk not working.

tesc — Thu, 04 Jun 2020 13:24:43 GMT

Hi,

Do you have any other nRF52 DKs, that are working?

Regards,
Terje

RE: nrf52 dk not working.

Thomasthomas — Thu, 04 Jun 2020 04:43:05 GMT

not responding means led5 doesnot blink and jlink folder not showing in PC. The command nrfjprog -i return nothing

RE: nrf52 dk not working.

tesc — Wed, 03 Jun 2020 10:51:00 GMT

Hi,

Not responding to what?

What does e.g. "nrfjprog -i" from a command line terminal give as output?

Regards,
Terje

RE: nrf52 dk not working.

Thomasthomas — Mon, 01 Jun 2020 07:30:13 GMT

2 Dk's not responding

RE: nrf52 dk not working.

tesc — Tue, 26 May 2020 11:22:21 GMT

Hi,

Please set the switches and connect to the board as shown in this image:

Then test the board using the Blinky Example.

How does each of the two boards behave in this situation?

Regards,
Terje

RE: nrf52 dk not working.

Thomasthomas — Tue, 26 May 2020 05:03:36 GMT

I have 2 complaint DK's. One is working by connecting usb (between buttons and reset button) and the other usb, power source to USB position and VEXT-ON position, and able to program my board, but after sometimes LED5 blinks continuously stops working..

The other DK is not responding in anyways.

RE: nrf52 dk not working.

tesc — Mon, 25 May 2020 13:29:38 GMT

Hi,

That would be to check to see if the board is physically powered, e.g. that VDD has correct voltage.

Another indication the board is powered is LED5 is on (next to the chip with the "pca10056" sticker on. That chip is the programmer / interface mcu.)

Please note that there are several switches on the board, controlling power. On/off switch in bottom left corner turns the board on/off. "nRF power source" switch on left side lets you select what power source to use, and the switch along the top edge to the right of all the headers lets you switch between powering only the nRF and powering buttons/leds/etc. on the board itself as well.

There are also two USB connections: The one on the left (short) edge is for connecting the DK to the pc (for programming, for debugging, general use of the DK. This is the one you should use. It gives power to the board when "nRF power source" is set to "VDD".) The one on the bottom (between buttons and reset button) is for connecting USB directly to the nRF52840 and cannot be used for programming the DK without prior preparation.

For full info on the different switches, power sources, etc. on the DK, please have a look at the nRF52840 DK user guide.

Regards,
Terje

RE: nrf52 sdk not working.

Thomasthomas — Thu, 21 May 2020 09:26:54 GMT

which voltage to be checked.cable changed

RE: nrf52 sdk not working.

awneil — Thu, 21 May 2020 07:52:49 GMT

Your question doesn't make sense: the SDK is a set of software resources - so "powering it on" has no meaning.

https://www.nordicsemi.com/Software-and-tools/Software/nRF5-SDK

Did you mean nRF52840 DK - which is a physical board:

https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK

[quote userid="83916" url="~/f/nordic-q-a/61657/nrf52-sdk-not-working"]what should i do[/quote]

What have you done so far?

Checked cables?

Checked voltages?

etc ... ?