void execute_user_code(void)
{
void (*user_code_entry)(void);
unsigned *p; // used for loading address of reset handler from user flash
/* Change the Vector Table to the USER_FLASH_START
in case the user application uses interrupts */
SCB->VTOR = (USER_FLASH_START & 0x1FFFFF80);
/* SP (stack pointer) register must be set correctly before jump to the
* user application: http://www.keil.com/forum/17342/
*/
__set_PSP(USER_FLASH_START);
// Load contents of second word of user flash - the reset handler address
// in the applications vector table
p = (unsigned *)(USER_FLASH_START +4);
// Set user_code_entry to be the address contained in that second word
// of user flash
user_code_entry = (void *) *p;
// Jump to user application
user_code_entry();
}
void run_app()
{
void (*user_code_entry)(void);
unsigned *p; // used for loading address of reset handler from user flash
//NVIC_DeInit();
//NVIC_SCBDeInit();
SYSTICK_Cmd(0);
SYSTICK_IntCmd(0);
/* Change the Vector Table to the USER_FLASH_START
in case the user application uses interrupts */
SCB->VTOR = (FLASH_START_ADDR & 0x1FFFFF80);
// Load contents of second word of user flash - the reset handler address
// in the applications vector table
p = (unsigned *)(FLASH_START_ADDR + 4);
// Set user_code_entry to be the address contained in that second word
// of user flash
user_code_entry = (void *) *p;
// Jump to user application
user_code_entry();
}
