STM32F3Discovery_internal_FLASH

STM32 writing and reading internal FLASH and bootloader

YouTube tutorial: https://www.youtube.com/watch?v=5GhHpeRgceM

How to jump to App as a Bootloader?

Just like this:

• write your App starting address: #define APP_START (0x08005000)

void jump_to_app()
{
//-- jump to application image: new SP and reset vector address
volatile uint32_t *uwImagePtrW;
volatile uint32_t newMSP, jmpAddr;

uwImagePtrW = (uint32_t *)APP_START;  
newMSP = *uwImagePtrW;  
uwImagePtrW++;  
jmpAddr = *uwImagePtrW;  

//-- reset peripherals to guarantee flawless start of user application  
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0);  
HAL_TIM_Base_Stop_IT(&htim2);  
HAL_TIM_Base_DeInit(&htim2);  
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;  
HAL_RCC_DeInit();  
HAL_DeInit();  

/* let's do The Jump! */  
__set_MSP(newMSP);  
asm("bx %0  n" : : "r" (jmpAddr));  

}

Done!!!