text: /**
    ******************************************************************************
    * @file    QSPI/QSPI_PreInitConfig/Src/main.c
    * @author  MCD Application Team
    * @version V1.0.4
    * @date    06-May-2016
    * @brief   This example describes how to configure and use QuadSPI through
    *          the STM32F4xx HAL API.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "main.h"
  
  /** @addtogroup STM32F4xx_HAL_Examples
    * @{
    */
  
  /** @addtogroup QSPI_PreInitConfig
    * @{
    */
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /* Private macro -------------------------------------------------------------*/
  #if defined(__ICCARM__)
  #pragma section =".qspi"
  #endif
  /* Private variables ---------------------------------------------------------*/
  /* Private function prototypes -----------------------------------------------*/
  static void GpioToggle(void);
  /* Private functions ---------------------------------------------------------*/
  
  /**
    * @brief  Main program
    * @param  None
    * @retval None
    */
  int main(void)
  {
    /* STM32F4xx HAL library initialization:
         - Configure the Flash prefetch, instruction and Data caches
         - Systick timer is configured by default as source of time base, but user 
           can eventually implement his proper time base source (a general purpose 
           timer for example or other time source), keeping in mind that Time base 
           duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and 
           handled in milliseconds basis.
         - Set NVIC Group Priority to 4
         - Low Level Initialization: global MSP (MCU Support Package) initialization
       */
    HAL_Init();
  
    BSP_LED_Init(LED1);
    BSP_LED_Init(LED2);
    BSP_LED_Init(LED3);
    BSP_LED_Init(LED4);
    
    while(1)
    {
    /* Execute the code from QSPI memory ------------------------------- */
    GpioToggle();
    }
  }
  
  #ifdef  USE_FULL_ASSERT
  /**
    * @brief  Reports the name of the source file and the source line number
    *         where the assert_param error has occurred.
    * @param  file: pointer to the source file name
    * @param  line: assert_param error line source number
    * @retval None
    */
  void assert_failed(uint8_t *file, uint32_t line)
  {
    /* User can add his own implementation to report the file name and line number,
       ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  
    /* Infinite loop */
    while (1)
    {
    }
  }
  #endif
  
  /**
    * @brief  Toggle the GPIOs
    * @param  None
    * @retval None
    */
  #if defined(__CC_ARM)
  #pragma arm section code = ".qspi"
  #pragma no_inline
  static void GpioToggle(void)
  #elif defined(__ICCARM__)
  static void GpioToggle(void) @ ".qspi"
  #elif defined(__GNUC__)
  static void __attribute__((section(".qspi"), noinline)) GpioToggle(void)
  #endif
  {
    BSP_LED_Toggle(LED1);
    /* Insert delay 100 ms */
    HAL_Delay(100);
    BSP_LED_Toggle(LED2);
    /* Insert delay 100 ms */
    HAL_Delay(100);
    BSP_LED_Toggle(LED3);
    /* Insert delay 100 ms */
    HAL_Delay(100);
    BSP_LED_Toggle(LED4);
    /* Insert delay 100 ms */
    HAL_Delay(100);
  }
  #if defined(__CC_ARM)
  #pragma arm section code
  #endif
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  