DK Boards Not Working

RE: DK Boards Not Working

tesc — Thu, 20 Oct 2022 13:45:50 GMT

Hi,

Please try installing the latest version of J-Link Software and Documentation Pack. If it doesn't work, try uninstalling existing versions and reinstall the newest version.

Regards,
Terje

RE: DK Boards Not Working

DataMate — Wed, 19 Oct 2022 15:33:27 GMT

That was on the nRF52832 DK (PCA10040). Haven't gotten the nRF52840 DK (PCA10056) working yet.

With the nRF52832 DK, I did find a couple of the USB ports on my PC couldn't read the device, while the other 2 could, all presumably on the same hub. All I can figure was the registry was trashed somehow, but didn't know exactly what the VID & PID were to search through the registry to see if anything was amiss. What are they for both products?

RE: DK Boards Not Working

tesc — Wed, 19 Oct 2022 15:26:53 GMT

Hi,

Out of curiosity I checked SB9 on the nRF52840 DK (PCA10056) and it seems to be normally open, related to LEDs, connecting VDD_PER to VDD if closed. Did you mean SB40 or 41, which are both related to power measurement?

Regards,
Terje

RE: DK Boards Not Working

tesc — Wed, 19 Oct 2022 15:19:37 GMT

Hi,

I am happy to hear you that you figured it out! SB9, of all things, that can't have been easy to spot.

Does this mean everything is now in working order?

Regards,
Terje

RE: DK Boards Not Working

DataMate — Wed, 19 Oct 2022 00:40:36 GMT

Found the issue. Under high magnification I could see that what had been a solder bridge at SB9 had been severed. I jumpered the pins for the nRF current measurement connector together, and the board now consumes the hex file that I copy to the JLINK drive without any errors.

RE: DK Boards Not Working

DataMate — Tue, 18 Oct 2022 15:40:26 GMT

After I held the BOOT/RESET button on the PCA10040 board, then slid the Power switch to the ON position, I was able to copy j-link-ob-sam3u128-v2-nordicsemi-170724.bin at https://www.nordicsemi.com/Products/Development-hardware/nrf52-dk/download#infotabs to the BOOTLOADER drive that appeared, then after powering the board off and back on, I was able to see the JLINK drive. However, no matter what hex file I drop onto the drive, for example, the one in nrf52dkfw110.zip at that URL, a FAIL folder appears on the JLINK drive containing the text "Error while connecting to CPU".

When I try to use nrfjprog -f nrf52 --recover --log at the Windows command line, I get

[error]: [SeggerBackend] - JLinkARM.dll reported "-1", "An unknown error.".

When I use JLink Commander v7.66a from the PC, I get the following:

SEGGER J-Link Commander V7.66a (Compiled May 19 2022 15:14:46)
DLL version V7.66a, compiled May 19 2022 15:13:27

Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jan 20 2022 16:43:31
Hardware version: V1.00
S/N: 682910671
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
USB speed mode: High speed (480 MBit/s)
VTref=3.300V

Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: NRF52
Type '?' for selection dialog
Device>
Please specify target interface:
J) JTAG (Default)
S) SWD
T) cJTAG
TIF>
Device position in JTAG chain (IRPre,DRPre) <Default>: -1,-1 => Auto-detect
JTAGConf>
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "NRF52" selected.

Connecting to target via JTAG
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Failed to identify target. Resetting via Reset pin and trying again.
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Failed to identify target. Resetting via Reset pin and trying again.
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Cannot connect to target.
J-Link>

What else do I need to try to restore drag 'n drop capability to this board?

Thanks.

RE: DK Boards Not Working

tesc — Fri, 23 Sep 2022 11:39:31 GMT

Hi,

First of all, check that the switches of the boards are in the correct positions, and that solder bridges for the power is not cut. (If the solder bridges are cut, you must use jumpers between the corresponding pins.)

Check also that you have not cut any solder bridges, or soldered any solder bridges. The DK has several solder bridges that changes the board's behaviour, including affecting the availability of the on-board nRF. Two solder bridges can be cut related to power measurements. Those are marked in the above image. For those, you can put a jumper on the corresponding pins for reconnecting, instead of re-soldering the solder bridge itself.

Regarding J-Link software (on the PC), you can go to the J-Link Software and Documentation Pack at https://www.segger.com/downloads/jlink/ and install the latest.

Pressing IF BOOT/RESET while turning the main switch on, should put the interface chip (programmer) on the board into bootloader mode. That should result in a BOOTLOADER drive on the PC. The firmware can be found from our web pages:

For nRF52840 DK (PCA10056): https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/Download#infotabs

For nRF52 DK (PCA10040): https://www.nordicsemi.com/Products/Development-hardware/nRF52-DK/Download#infotabs

Regards,
Terje

RE: DK Boards Not Working

DataMate — Fri, 23 Sep 2022 02:07:21 GMT

For the PCA10040, I was able to get the BOOTLOADER drive to appear and follow step 4 at My nRF52/nRF51 DK kit doesn't work. dragging and dropping the bin file from https://www.nordicsemi.com/Products/Development-hardware/nrf52840-dk/download#infotabs but after powering off and powering back on I still don't see the mass storage drive appear, though the unrecognized device error message doesn't pop up any more. Just LEDs 1, 2, 3, and 4 are faintly lit.

For PCA10056, I can see JLink Device in nRF Connect for Desktop Programmer when I plug my JLink probe into the DEBUG IN connector on the board. Is there a zip file I can drop in to restore functionality so that the board enters mass storage mode when I plug it into the USB port on my PC without the JLink probe connected?