Merge automatically two hex files into one within Eclipse

Question

I have a bootloader project and an app project within the same workspace in Eclipse.

I'd like to merge the hex files of theses two project into one single hex, so that I can flash in my MCU both project at the same time.

I know this is possible using some tools (https://www.keil.com/support/docs/2666.htm), but I would like that the merge process happens in Eclipse using a post-build command or else.

Thanks

Answer 1

Intel hex are just text files, you can merge them manually in any text editor by using simple copy/paste. Grab the data rows only from one of the files.

This assuming that there's no CRC on the program as whole. Also, you probably shouldn't have multiple rows with the same address in the same file or you might confuse some tools.

I'd recommend doing this through a diff tool such as for example WinMerge, or the one integrated in your version control system. Once you have it working you could write a file handling script for merging them automatically.