Jump to bootloade from application on STM32G48xx and use DFU

[mszczuj]

I'm stuck on performing jump to bootloader in order to update firmware via DFU. MCU is STM32G484. On empty project I configured the clock for USB, my code is:

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USB_PCD_Init();
 
 void (*SysMemBootJump)(void);
//volatile uint32_t addr = 0x1FFF0000; //from AN2606 (system memory)
 volatile uint32_t addr = 0x1FFF6FFE; //from AN2606 (bootloader ?)
  __disable_irq();
  SysTick->CTRL = 0;
  HAL_RCC_DeInit();
  for (int i=0;i<5;i++)
  {
   NVIC->ICER[i]=0xFFFFFFFF;
   NVIC->ICPR[i]=0xFFFFFFFF;
  }
 
 __enable_irq(); //re-enablde irq for USB (?)
 
 SysMemBootJump = (void (*)(void)) (*((uint32_t *)(addr + 4)));
__set_MSP(*(uint32_t *)addr);
SysMemBootJump();
 
//shouldn't reach here (?)