nrf51822 Minew's Module is not recognized by NRF51DK

[fercholas]

Hi guys

I am trying to program a nrf51822 module but it is not recognized by the development kit.

These are the pins that I am using:

I can not see the module with NRFGo on Windows or on linux with Jlink console.

Any idea?

Thanks in advance!

[Håkon Alseth]

Hi,

What is the output of JLinkExe (J-Link Commander in windows)? If this successfully finds a target and a valid voltage, you shall also be able to contact the device using nrfjprog from command line:

nrfjprog --recover // do this just in-case nrfjprog --program nrfjprog --pinreset

The "blinky" demo is a good application for a visual indication to see if you are programming the nRF51-DK or your external board. The "program external board" feature is a bit tricky, as the voltage must be equal on the external board and the nRF51-DK, for it to work properly.

edit ; my first answer was incorrect. sorry.

Cheers, Håkon

[Håkon Alseth]

Yes, VTG and VDD_NRF must be connected together to ensure that the voltage is equal on the nRF5x-DK and your custom board.