最近使用做一个DFU USB升级程序，使用的是STM32CubeF0_V1.7.0中的例程，但是应用程序部分编译时总是出现一个问题，换用STM32CubeF0_V1.6.0中的例程也是一样；换一台电脑也是一样。试了很多方法不能解决。报错如下：STM32F072B-Discovery_USBSTM32F072B-Discovery_USB.axf: Error: L6971E: stm32f072b_discovery.o(.data) type RW incompatible with main.o(.ARM.__AT_0x20000000) type ZI in er RW_IRAM1.
代码如下：
#include "main.h"  
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#define APPLICATION_ADDRESS     (uint32_t)0x08007000  //0x08007000
#if   (defined ( __CC_ARM ))
  __IO uint32_t VectorTable[48] __attribute__((at(0x20000000)));
#elif (defined (__ICCARM__))
#pragma location = 0x20000000
  __no_init __IO uint32_t VectorTable[48];
#elif defined ( __GNUC__ )
  __IO uint32_t VectorTable[48] __attribute__((section(".RAMVectorTable")));
#endif

USBD_HandleTypeDef USBD_Device;

/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
  HAL_Init();
  for(uint8_t i = 0; i < 48; i++)
  {
    VectorTable[i] = *(__IO uint32_t*)(APPLICATION_ADDRESS + (i<<2));
  }
  /* Configure the system clock to get correspondent USB clock source */
        __HAL_RCC_SYSCFG_CLK_ENABLE();
  __HAL_SYSCFG_REMAPMEMORY_SRAM();

  SystemClock_Config();
  /* Configure LED3, LED4, LED5 and LED6 */
  BSP_LED_Init(LED_GREEN);
  BSP_LED_Init(LED_ORANGE);
  BSP_LED_Init(LED_RED);
  BSP_LED_Init(LED_BLUE);

  /* Configure User button for remote wakeup */
  BSP_PB_Init(BUTTON_USER, BUTTON_MODE_EXTI);

  /* Init Device Library */
  USBD_Init(&USBD_Device, &HID_Desc, 0);

  /* Register the HID class */
  USBD_RegisterClass(&USBD_Device, &USBD_HID);

  /* Start Device Process */
  USBD_Start(&USBD_Device);

  while (1)
  {
  }
}


如果屏蔽掉如下部分，就可以编译通过：
#if   (defined ( __CC_ARM ))
  __IO uint32_t VectorTable[48] __attribute__((at(0x20000000)));
#elif (defined (__ICCARM__))
#pragma location = 0x20000000
  __no_init __IO uint32_t VectorTable[48];
#elif defined ( __GNUC__ )
  __IO uint32_t VectorTable[48] __attribute__((section(".RAMVectorTable")));
#endif


可见问题出在这里，请高手指导！ 谢谢！