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Address jump

nandhakumar Ganesan over 1 year ago

Hi,

in my project I am try to jump 0x8002000 address . but I am facing some failure,

typedef void (*FunctionPointer)(void);

// Example function to jump to another address

void jumpToAddress(uint32_t * address) {

//address =0x800029c;

// Define a function pointer with the address

FunctionPointer jumpFunction = (FunctionPointer)address;

//void (*jumpFunction)(void) = (void (*)(void))address;

// Disable interrupts if needed

__disable_irq();

// Set the program counter (PC) to the new address

SCB->VTOR = address;

// Execute an instruction to ensure that the jump takes effect

__DSB();

__ISB();

// Re-enable interrupts if needed

__enable_irq();

// Call the function via the function pointer

jumpFunction();

}

this is my address jump function .

int main(void)
{
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */

/* USER CODE END Init */

/* Configure the system clock */
SystemClock_Config();

/* USER CODE BEGIN SysInit */

/* USER CODE END SysInit */

/* Initialize all configured peripherals */
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
//myFunction();
jumpToAddress(0x8002000);

/* USER CODE END 2 */

/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */

/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}

this is my main function.

this image is my .map file for my project.

I am try to jump 0x8002000 address my project shown ,

this output. so kindly help to me.

thanks