ERROR: JLinkARM DLL reported an error

[Sorena]

Hi NordicSemi,

I am trying to program an Nrf52811 by using nrf52-dk in ubuntu and vsc.

I have actually programmed it several times and it worked until yesterday. However then I got this ERROR: JLinkARM DLL reported an error.

I have attached the log file here, but so far I found that some times when I restart the pc it can program the device for one time and then for the next times I get that error.

One time I even managed to re program it without restarting by reconnecting the usb cables and restarting the VSC but even this solution worked only one time. 

I have just updated my JLink driver to JLink_Linux_V794_x86_64 without any luck. If I run JLinkExe in terminal I can find NRF52 device and connect to it as JTAG.

I appreciate if you can help me in fixing it because I have been stuck there now

Thanks,

Sorena

0218.log.log

[Jared]

Hi there,

Just to be clear, the log output is from when you're using nRF Command Line Tools directly?

What voltage do you measure on VDD, GND and RESET on the custom board when it fails?

regards

Jared