Is there any major difference between STM32L476 and STM32G071 on the bootloader behavior ?

[MHo.15]

I need to develop a bootloader on STM32L476. So I adapt my code from this tutorial and codes : video https://www.youtube.com/watch?v=OkUQ3iMmiYQ&list=PLnMKNibPkDnEb1sphpdFJ3bR9dNy7S6mO using STM32G071 , However, my adapted code running on STM32L476 always crash immediately after the execution switch from bootloader to target application. I wonder if there is unknow difference between STM32L476 and STM32G07 on bootloader behavior which cause the crash ?

[Imen.D]

Hello @MHo.15​ ,

Did you checked the Bootloader configuration and Known limitation for STM32L47xx and STM32G07xx in AN2606? Try follow the recommendation in this document.

Imen

[MHo.15]

Hi Imen,

Thanks a lot for your feedback. I checked AN2606.It is for using bootloader in boot ROM, but I am using open bootloader https://github.com/STMicroelectronics/stm32-mw-openbl. I think there must be something overlooked or mistaken in the target application execution environment. I checed everything mentioned in this tutorial https://www.youtube.com/watch?v=OkUQ3iMmiYQ&list=PLnMKNibPkDnEb1sphpdFJ3bR9dNy7S6mO but still can not find the cause.