Hi,

I wrote a small application for the STM32L496 processor. The application simply jumps in the ROM bootloader of the CPU.

When I compile my application within STM32Cube IDE (version 1.6.0), it works properly.

When I compile it with zephyr, using west metatool, it does not work.

Here is the code of my application:

    void (*SysMemBootJump)(void);

    volatile uint32_t addr = 0x1FFF0000;

    HAL_RCC_DeInit();

    SysTick->CTRL = 0;

    SysTick->LOAD = 0;

    SysTick->VAL = 0;

    __HAL_RCC_SYSCFG_CLK_ENABLE();

    __disable_irq();

    SCB->VTOR=0;

    __HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH();

    SysMemBootJump = (void (*)(void)) (*((uint32_t *)(addr + 4)));

    __set_MSP(*(uint32_t *)addr);

    SysMemBootJump();

       while(1);

I can not find out what makes it fail on Zephyr. If I could get some help on that problem, I would really appreciate.

Thanks

Philippe O’Reilly