IAP升级带ucos的APP无法成功运行

1楼-- · 2019-07-20 10:54

我也遇到过这样的问题原子的例程裸机怎么跳都没事带ucos就不行换用下面的跳转代码解决问题了
//2018/8/11 解决ucos3无法跳转的问题
void jump_to_app(uint32_t app_address)
{
typedef void (*_func)(void);

__disable_irq();

/* MCU peripherals re-initial. */
{
      GPIO_InitTypeDef GPIO_InitStruct;

      GPIO_InitStruct.GPIO_Mode  = GPIO_Mode_IN;
      GPIO_InitStruct.GPIO_Speed = GPIO_Speed_2MHz;
      GPIO_InitStruct.GPIO_OType = GPIO_OType_OD;
      GPIO_InitStruct.GPIO_PuPd  = GPIO_PuPd_NOPULL;

      GPIO_InitStruct.GPIO_Pin = GPIO_Pin_All;
      GPIO_InitStruct.GPIO_Pin &= ~(GPIO_Pin_13 | GPIO_Pin_14); /* SWDIO/SWCLK */
      GPIO_Init(GPIOA, &GPIO_InitStruct);

      GPIO_InitStruct.GPIO_Pin = GPIO_Pin_All;
      GPIO_Init(GPIOB, &GPIO_InitStruct);
      GPIO_Init(GPIOC, &GPIO_InitStruct);
      GPIO_Init(GPIOD, &GPIO_InitStruct);
      GPIO_Init(GPIOE, &GPIO_InitStruct);
      GPIO_Init(GPIOF, &GPIO_InitStruct);
      GPIO_Init(GPIOG, &GPIO_InitStruct);
      GPIO_Init(GPIOH, &GPIO_InitStruct);
      GPIO_Init(GPIOI, &GPIO_InitStruct);

      /* reset systick */
      SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;

      /* disable all peripherals clock. */
      RCC->AHB1ENR = (1<<20); /* 20: F4 CCMDAT ARAMEN. */
      RCC->AHB2ENR = 0;
      RCC->AHB3ENR = 0;
      RCC->APB1ENR = 0;
      RCC->APB2ENR = 0;

      /* Switch to default cpu clock. */
      RCC->CFGR = 0;
} /* MCU peripherals re-initial. */

/* Disable MPU */
MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk;

/* disable and clean up all interrupts. */
{
      int i;

      for(i = 0; i < 8; i++)
      {
         /* disable interrupts. */
         NVIC->ICER[i] = 0xFFFFFFFF;

         /* clean up interrupts flags. */
         NVIC->ICPR[i] = 0xFFFFFFFF;
      }
}

/* Set new vector table pointer */
SCB->VTOR = app_address;

/* reset register values */
__set_BASEPRI(0);
__set_FAULTMASK(0);

/* set up MSP and switch to it */
__set_MSP(*(uint32_t*)app_address);
__set_PSP(*(uint32_t*)app_address);
__set_CONTROL(0);

/* ensure what we have done could take effect */
__ISB();

__disable_irq();

/* never return */
((_func)(*(uint32_t*)(app_address + 4)))();
}