Unable to set up nRF52840-DK

RE: Unable to set up nRF52840-DK

Simonr — Wed, 27 May 2020 06:09:17 GMT

This case is more than a year old, and a lot has changed since then. If none of the suggestions below help you, I suggest you create a ticket of your own, where you can link to this case to refer to what you've already tried.

Best regards,

Simon

RE: Unable to set up nRF52840-DK

Subhransu — Mon, 25 May 2020 20:40:53 GMT

I kind of ran into the same problem and after doing all of the above and wrting the soft blink hex on the device, the LED still doesnt glow. Any suggestion what to try next.

RE: Unable to set up nRF52840-DK

Simonr — Fri, 26 Apr 2019 08:10:32 GMT

Can you try downloading and installing the J-Link Software and Documentation pack? Try with the latest version first. If that doesn't help, try version 6.22g, as there was an issue with newer versions earlier for macOS which I'm not sure if is fixed.

Best regards,

Simon

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Thu, 25 Apr 2019 18:30:23 GMT

Thank you Simon for your continued support. I followed your steps above and I run into this error when I try to use the Programmer app, from nRF Connect Desktop, with my nRF52840 DK board.

Error while probing devices: Error occured when get serial numbers. Errorcode: CouldNotOpenDLL (0x7) Lowlevel error: JLINKARM_DLL_NOT_FOUND (ffffff9c)

When I try to Select Device, (000683758172 PCA10056) I get the below error.

Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device

I tried adding a hex file from the demo (Proximity) and got the following logs. Any idea what is going on? Appreciate your help. Raghav

11:25:39.063

Parsing HEX file: /Users/Raghav/Downloads/proximity_demo/ble_app_proximity_s132_pca10040.hex

11:25:39.072

File was last modified at 3/11/2016, 9:20:48 AM

11:25:39.238

Data block: 0x00000000-0x00000964 (0x00000964 bytes long)

11:25:39.238

Data block: 0x00001000-0x0001B6B4 (0x0001A6B4 bytes long)

11:25:39.238

Data block: 0x0001C000-0x00024DAC (0x00008DAC bytes long)

11:25:39.243

SoftDevice detected, id 0x81 (S132 v2.0.0)

RE: Unable to set up nRF52840-DK

Simonr — Thu, 25 Apr 2019 08:11:09 GMT

Hi Raghav

Glad to hear you got out of the bootloader mode by yourself! I suggest you download nRFConnect for desktop, which has a programmer app where you can easily write and upload projects to your chip, and get log files to see if the program flashed correctly or not, as it is way easier to find out if something is going wrong that way.

Next, go here to download SDK 15.3. Then open nRFConnect and the programmer app. In the programmer app choose your device, then add a hex file, then click the erase and write button to flash the firmware to your device. You can try the led_softblink just tp confirm that all LEDs work properly.

Please confirm that you're able to program the board and that the LEDs pulsate.

The next step would be to download SEGGER Embedded Studios, which is a free IDE for all developers using Nordic products, and is available for macOS, where you can create edit and upload your own projects to the nRF52840 DK.

Best regards,

Simon

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 16:36:32 GMT

The same is true for the Proximity demo. None of the LEDs blink and clicking on FindMe button in the app doesn't get the LED3 going.

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 16:28:50 GMT

Actually I have another update. I downloaded the HRM file and copied the hex file over into the JLINK folder and I was able to connect to the board from the ToolBox app. The connection showed up as Nordic_HRM and I see values being shown in the app. The LED1 DOESN'T blink on the board. I tried holding down the button for a few seconds but that didn't work either. Could something be wrong with the circuit?

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 16:17:46 GMT

I tried copying the hex file from the Proximity Demo download into the JLINK folder but that doesn't seem to work. Am I doing that right? Is that the right way to program the board?

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 16:15:01 GMT

Okay so I was able to get out the BOOTLOADER mode by copying the right firmware file and I see the JLINK folder again but I'm still not able to see the LED1 blink. Is there anyway I can do a factory reset or something so that I can follow the steps in order

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 15:41:56 GMT

Hi Simon,

I tried flashing the board by getting into the BOOTLOADER mode by holding down the IF BOOT/RESET button while powering on the board. Now I'm stuck in this mode and unable to get out. If I turn off the board and power it back on without holding any button, the LED5 doesn't light up and nothing shows up in the file explorer. How do I get out of the BOOTLOADER mode?

RE: Unable to set up nRF52840-DK

Simonr — Wed, 24 Apr 2019 08:30:15 GMT

Hi Raghav

I see that you linked to the nRF52832 DK Getting started guide, so you might have downloaded the wrong firmware. Please follow the steps for the nRF52840 DK and see if you're able to go through with it. If step 5 (Use the buttons SW1 to SW4 to control which LED is pulsating) fails, click here to download version 1.1.0 firmware, and continue from step 7 to program the new firmware into your nRF52840 DK.

If you still aren't able to get it working, we have a lot of tutorials over at our YouTube channel if you are new to the Nordic development environment.

Best of luck and regards,

Simon

RE: Unable to set up nRF52840-DK

Raghav_Janamanchi — Wed, 24 Apr 2019 04:05:55 GMT

Also I'm able to see JLink listed in System Information