about options of nrfjprog.exe program

[irarykim]

Hi, I hope use nrfjprog.exe to do following things:

HW: nrf1822

• download s110 6.0
• download bootloader
• download firmware
• write some values to certain addresses
• use write/read protection to bootloader area and firmware area.

My questions are:

• Which option should I use for downloading Bootloader? (I failed to use "--programapp")
• I tried "--rbp ALL" and "--rbp CR0", but I still can read flash values using "--memrd". So how can I do a read protection?

Thank you!

[Stefan Birnir Sverrisson]

Hi

Perhaps this thread can help you with how to upload SD+bootloader+application with nrfjprog.

In order to write specific adresses it is a question of adding to the merged .hex file for the addresses the you want to write. For this to work, you need to study the intelhex format a bit which is the .hex format. In fact, the purpose of merging the app_valid_setting_apply.hex file with the other files is to write specific address in the bootloader settings area, in order to make the bootloader accept the application. I guess you can do something similar for the addresses you want to write.

In order for the memory protection mechanism to be activated, you need to reset the device.