Programming nRF51822 bootloader ends with "Invalid parameter error"

[Patriko]

Hi!

I was trying to program bootloader provided with nRF51822-DK using nRFgo studio but I receive error like attached:

I was also trying to follow this guide:

devzone.nordicsemi.com/.../group__ble__sdk__app__bootloader.html

but command:

nrfjprog --uicrwritereg 0x10001014 --val 0x00038000

ends with error:

What I'm doing wrong and how can I fix it?

Thanks! Patriko

[wlgrd]

that argument is not provided with my nrfjprog either (very old documentation, maybe the nrfjprog util has changed since then), but since you are just writing to a memory space you could try nrfjprog --memwr 0x10001014 --val 0x00038000

[wlgrd]

Also, what chip revision do you have, i.e what name is printed on your chip? I guess maybe SDK 4.2 wont be valid for your chip version.

[Patriko]

Hi!

I've N51822 QFAG0 1341AG version, purchased few days ago. And SDK should be v7.0, isn't it?

[Carles]

No, SDK 6.0.0 and SoftDevice (S110) 7.0.0 are the latest releases

[EL45]

Checkout the latest documentation for the bootloader example: devzone.nordicsemi.com/.../a00055.html

These steps are no longer mentioned, and I don't think they are necessary if using SoftDevice 7.0 and SDK 6.0

Are you using Keil to compile?

If so, try putting the softdevice on using nrfGo then flash the bootloader from within Keil OR

nrfjprog.exe --reset --program _build/bootloader.hex

After compiling with Keil, you should be able to open the hex file, look at the end of it and see that it's writing address 0x1000101 for you.