How should I implement the IAP (In-Application Programming) functionality on the STM32F745?

I use the following code to jump to the M7 application, and similarly, after changing the address, I use the same method to jump to the M4 application.

#define APPLICATION_M7_ADDRESS 0x08020000

void JumpToApplication(void)

{

__disable_irq();

ApplicationEntry = (pFunction) (*(__IO uint32_t*) (APPLICATION_M7_ADDRESS + 4));

uint32_t appStack = *(__IO uint32_t*) APPLICATION_M7_ADDRESS;

__set_MSP(*(__IO uint32_t*) APPLICATION_M7_ADDRESS);

ApplicationEntry();

}

In the M7 application, I used SCB->VTOR = 0x08020000 to set the interrupt vector offset address. Similarly, in the M4 application, I used SCB->VTOR = 0x08120000 to set the interrupt vector offset address.