tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F411RE/system_stm32f4xx.h

   1 /**
   2   ******************************************************************************
   3   * @file    system_stm32f4xx.h
   4   * @author  MCD Application Team
   5   * @version V2.1.0
   6   * @date    19-June-2014
   7   * @brief   CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
   8   ******************************************************************************
   9   * @attention
  10   *
  11   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  12   *
  13   * Redistribution and use in source and binary forms, with or without modification,
  14   * are permitted provided that the following conditions are met:
  15   *   1. Redistributions of source code must retain the above copyright notice,
  16   *      this list of conditions and the following disclaimer.
  17   *   2. Redistributions in binary form must reproduce the above copyright notice,
  18   *      this list of conditions and the following disclaimer in the documentation
  19   *      and/or other materials provided with the distribution.
  20   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  21   *      may be used to endorse or promote products derived from this software
  22   *      without specific prior written permission.
  23   *
  24   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34   *
  35   ******************************************************************************
  36   */
  37
  38 /** @addtogroup CMSIS
  39   * @{
  40   */
  41
  42 /** @addtogroup stm32f4xx_system
  43   * @{
  44   */
  45
  46 /**
  47   * @brief Define to prevent recursive inclusion
  48   */
  49 #ifndef __SYSTEM_STM32F4XX_H
  50 #define __SYSTEM_STM32F4XX_H
  51
  52 #ifdef __cplusplus
  53  extern "C" {
  54 #endif
  55
  56 /** @addtogroup STM32F4xx_System_Includes
  57   * @{
  58   */
  59
  60 /**
  61   * @}
  62   */
  63
  64
  65 /** @addtogroup STM32F4xx_System_Exported_types
  66   * @{
  67   */
  68   /* This variable is updated in three ways:
  69       1) by calling CMSIS function SystemCoreClockUpdate()
  70       2) by calling HAL API function HAL_RCC_GetSysClockFreq()
  71       3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
  72          Note: If you use this function to configure the system clock; then there
  73                is no need to call the 2 first functions listed above, since SystemCoreClock
  74                variable is updated automatically.
  75   */
  76 extern uint32_t SystemCoreClock;          /*!< System Clock Frequency (Core Clock) */
  77
  78
  79 /**
  80   * @}
  81   */
  82
  83 /** @addtogroup STM32F4xx_System_Exported_Constants
  84   * @{
  85   */
  86
  87 /**
  88   * @}
  89   */
  90
  91 /** @addtogroup STM32F4xx_System_Exported_Macros
  92   * @{
  93   */
  94
  95 /**
  96   * @}
  97   */
  98
  99 /** @addtogroup STM32F4xx_System_Exported_Functions
 100   * @{
 101   */
 102
 103 extern void SystemInit(void);
 104 extern void SystemCoreClockUpdate(void);
 105 extern void SetSysClock(void);
 106
 107 /**
 108   * @}
 109   */
 110
 111 #ifdef __cplusplus
 112 }
 113 #endif
 114
 115 #endif /*__SYSTEM_STM32F4XX_H */
 116
 117 /**
 118   * @}
 119   */
 120
 121 /**
 122   * @}
 123   */
 124 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/