writing production parameters to flash using jlinkexe

[wim]

Hi

I am setting up a production programming script, and would like to know if it is possible to write short strings or numbers directly to flash. For example, i would like to write the devices' serial number to a specific flash location, such that I can access it during the normal run of the program using the pstorage library. How can I do that?

[Susheel Nuguru]

nordic command line tool "nrfjprog --memwr" should be enough here. nrfjprog internally uses jlink DLL API.

[Martijn]

Actually in our experience the nrfjprog tool very slow compared to directly using jlink. You can start jlink, select nrf51 via 'device NRF51422_XXAA' command, speed up the connection with 'speed 1000' and use 'w4

, ' to program a 4 byte value to a specific address. I would use the UICR register for this.