Avoid entering over the air bootloader but start with preprogrammed app

[FredNovalia]

Hi,

We are trying to use the over-the-air bootloader in our application. Our problem is the bootloader seems to require one first over-the-air download before it allows to start the application. Our application is actually preprogrammed using a DATAMAN serial wire debug programmer and we would like the app to run before the bootloader is entered.

What is the best way to start with a factory programmed application instead of waiting for the (over-the-air) bootloader to download it once.

Many thanks, Fred

[Adrian Eggenberger]

We had the same problem and solved it by creating a hex file that contains a prepared bootloader setting with installed app. By using mergehex.exe we combine bootloader, application, softdevice and the initial bootloader setting to one hex file that is programmed in factory.