about options of nrfjprog.exe program

Question

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 · Accepted Answer

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.