How to program small nr51822 module ?

[Hamza]

Hello I am trying to program this nrf51822 module. I am using J link Cortex M9. I want burn multilink peripheral in it. I have followed this link. I have connected everything i right.. but i am getting error.. when i am trying to program from nrfgo studio i am getting following error

and when i opened jlink command line, i am seeing this

I have connected everything right.. please tell me what can i do more.. any help would be appreciated... thanks ..

[Stefan Birnir Sverrisson]

Hi

From your j-link commander window it seems like the target voltage is 2.756V

The J-Link LITE CortexM programmer needs 3.3V supply voltage for the target in order to operate. I have usually managed to let it work on 3.1V also, but 3.0V usually fails, so that seems to be the boundary. It might work if you install a fresh 3V coin cell battery on the module, which might be a little over 3 volts to begin with at least.

For connecting the device with the programmer, see also this thread.

Programmers from Segger that accept down to 1.8V on the target (1) (2). The former is production qualified.