How to boot to random address without VECT_TAB_OFFSET ? stm32f072

Javier1 · ‎2021-06-22

I developed my first canbus bootloader for a stm32f105.

Now im in need to use that same bootloader in a stm32f072.

The bootloader works but im unable to build a program that starts from a flash address other than 0x8000000.....

How are multi programm apps being programmes in stm32f0xx families?

we dont need to firmware by ourselves, lets talk

Javier1 · ‎2021-07-05

ram_vector looks like its corectly reserved by the linker at the beggining of ram

ram_vector also gets succesfully filled with the correct vectors

we dont need to firmware by ourselves, lets talk

waclawek.jan · ‎2021-07-05

Hi Javier,

So, success?

Thanks for coming back with the solution.

Jan

Javier1 · ‎2021-07-05

yup, success as far as i know.

I still need to check a couple of things but programm executes, systick interruption works and nothing looks off.

we dont need to firmware by ourselves, lets talk

TShet.2 · ‎2023-07-30

Hello,

I am using STM32F030CCT6TR cortex M0 controller for bootloader.

I have used your above method of copying the ISR from flash to RAM and interrupt is working in Application after jumping.

But the HAL_Delay is working and stuck in infinite loop ,I think the tick is not incrementing .

Does the systick increment happen in a different ISR routine ?

How can I make the systick work in Application project?