How to flash multiple nRF51 Dongles at once?

[Marius Heil]

Hello,

I'm curious about how to deploy my application to multiple nRF51 Dongles at the same time while I am developing. I have the same application / hex file running on all Dongles, but I have not yet found a way to configure a parallel deploy in either keil or via a batch file. I was trying to use J-Flash, but it tells me that I do not have a licence....

[Asbjørn]

We have made a batch file for a different SDK that program several boards at the same time. I've remove all my Segger serial numbers from this one and re-named it to a .txt file. But you can open it, edit it and rename it to a batch file (.bat). It will then program several boards at the same time using the nrfjprog tool.

flash_boards_wired_debug_example.txt

[Marius Heil]

Thanks a lot. The nrfjprog tool was what I was looking for. Deploying is now about 10 times faster for me, that will greatly speed up my workflow. I've modified the file to only flash my application because I have the softdevice preprogrammed in development. Now it looks like this:

echo Parallel flashing on all dongles

SET SEGGER0=680######
SET SEGGER1=680######
SET SEGGER2=680######

SET APPHEXFILE=obj_node\fruityMesh.hex

start /min nrfjprog -s %SEGGER0% --program %APPHEXFILE% -r
start /min nrfjprog -s %SEGGER1% --program %APPHEXFILE% -r
start /min nrfjprog -s %SEGGER2% --program %APPHEXFILE% -r

echo "Flashing finished"

I've added the start command so that it flashes on all devices parallel. it will open a bunch of windows though, but the flashing speed is just perfect :-)