将代码烧写到sram中 需要在flash 中跳转到 sram中,不然reset后 程序无法运行

typedef  void (*pFunction)(void);

pFunction JumpToApplication;

/* Disable CPU L1 cache before jumping to the QSPI code execution */

    SCB_DisableICache();

    SCB_DisableDCache();

  /* Disable Systick interrupt */

  SysTick->CTRL = 0;

//HAL_DeInit();

__disable_irq();

  /* Initialize user application's Stack Pointer & Jump to user application */

  JumpToApplication = (pFunction) (*(__IO uint32_t*) (0x24000000 + 4));

__DSB();

__ISB();

  __set_MSP(*(__IO uint32_t*) 0x24000000);

__DSB();

__ISB();

__enable_irq();

  JumpToApplication();