I want to use local bootloader of mcu. First i used to sm32f407vg mcu, than i would to use stm32l052 mcu but i didn't this wit mcu. my tryed code is under of question. i am waiting the advice.
void JumpToBootloader(void) {
void (*SysMemBootJump)(void);
/**
* Step: Set system memory address.
*/
volatile uint32_t addr = 0x1FFF0000;
/**
* Step: Disable RCC, set it to default (after reset) settings
* Internal clock, no PLL, etc.
*/
#if defined(USE_HAL_DRIVER)
HAL_RCC_DeInit();
HAL_DeInit(); // add by ctien
#endif /* defined(USE_HAL_DRIVER) */
#if defined(USE_STDPERIPH_DRIVER)
RCC_DeInit();
#endif /* defined(USE_STDPERIPH_DRIVER) */
/**
* Step: Disable systick timer and reset it to default values
*/
SysTick->CTRL = 0;
SysTick->LOAD = 0;
SysTick->VAL = 0;
/**
* Step: Disable all interrupts
*/
__disable_irq(); // changed by ctien
/**
* Step: Remap system memory to address 0x0000 0000 in address space
* For each family registers may be different.
* Check reference manual for each family.
*
*/
//Remap by hand... {
//} ...or if you use HAL drivers
__HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH(); //Call HAL macro to do this for you
/**
* Step: Set jump memory location for system memory
* Use address with 4 bytes offset which specifies jump location where program starts
*/
SysMemBootJump = (void (*)(void)) (*((uint32_t *)(addr + 4)));
/**
* Step: Set main stack pointer.
* This step must be done last otherwise local variables in this function
* don't have proper value since stack pointer is located on different position
*
* Set direct address location which specifies stack pointer in SRAM location
*/
__set_MSP(*(uint32_t *)addr);
/**
* Step: Actually call our function to jump to set location
* This will start system memory execution
*/
SysMemBootJump();
/**
* Step: Connect USB<->UART converter to dedicated USART pins and test
* and test with bootloader works with STM32 STM32 Cube Programmer
*/
}
