Hello all,

I am working on porting code from IAR EWARM to Atollic TrueStudio. This big project is divided in 3 parts, Bootloader, Firmware A and Firmware B, all three are different projects and are separate images that need to be flashed into the microcontroller (STM32- cortex m3). I have two questions
1. How should the startup.s be modified so that I can copy the vector table from FLASH into RAM. I have relocated the vector table address using VTOR.2. Similarly how should i port __ramfunc (IAR directive that helps run code out of RAM). I have used __attribute(section("RAMFN")) and added RAMFN to the linker script. Is that all?

I am new to linker script and low level programming. Any advise when it comes to porting code and references for the same would be helpful.

Thanks,
Aakash

You might want to watch the "Modern Embedded Systems Programming" video course. Specifically, lessons-13, 14, and 15 talk about startup code and linker scripts. Lessons-19 and 20 talk about using the GNU-ARM toolset with Eclipse-based IDE.

Thank you for your reply. I'll try and watch the videos right away.