src/platform/STM32/startup/system_stm32h7xx.h

   1 /**
   2   ******************************************************************************
   3   * @file    system_stm32h7xx.h
   4   * @author  MCD Application Team
   5   * @brief   CMSIS Cortex-Mx Device System Source File for STM32H7xx devices.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  10   *
  11   * Redistribution and use in source and binary forms, with or without modification,
  12   * are permitted provided that the following conditions are met:
  13   *   1. Redistributions of source code must retain the above copyright notice,
  14   *      this list of conditions and the following disclaimer.
  15   *   2. Redistributions in binary form must reproduce the above copyright notice,
  16   *      this list of conditions and the following disclaimer in the documentation
  17   *      and/or other materials provided with the distribution.
  18   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  19   *      may be used to endorse or promote products derived from this software
  20   *      without specific prior written permission.
  21   *
  22   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  25   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  26   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  29   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32   *
  33   ******************************************************************************
  34   */
  35
  36 /** @addtogroup CMSIS
  37   * @{
  38   */
  39
  40 /** @addtogroup stm32h7xx_system
  41   * @{
  42   */
  43
  44 /**
  45   * @brief Define to prevent recursive inclusion
  46   */
  47 #ifndef SYSTEM_STM32H7XX_H
  48 #define SYSTEM_STM32H7XX_H
  49
  50 #ifdef __cplusplus
  51  extern "C" {
  52 #endif
  53
  54 /** @addtogroup STM32H7xx_System_Includes
  55   * @{
  56   */
  57
  58 /**
  59   * @}
  60   */
  61
  62 /** @addtogroup STM32H7xx_System_Exported_types
  63   * @{
  64   */
  65   /* This variable is updated in three ways:
  66       1) by calling CMSIS function SystemCoreClockUpdate()
  67       2) by calling HAL API function HAL_RCC_GetSysClockFreq()
  68       3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
  69          Note: If you use this function to configure the system clock; then there
  70                is no need to call the 2 first functions listed above, since SystemCoreClock
  71                variable is updated automatically.
  72   */
  73 extern uint32_t SystemCoreClock;             /*!< System Domain1 Clock Frequency  */
  74 extern uint32_t SystemD2Clock;               /*!< System Domain2 Clock Frequency  */
  75 extern const  uint8_t D1CorePrescTable[16] ; /*!< D1CorePrescTable prescalers table values */
  76
  77 /**
  78   * @}
  79   */
  80
  81 /** @addtogroup STM32H7xx_System_Exported_Constants
  82   * @{
  83   */
  84
  85 /**
  86   * @}
  87   */
  88
  89 /** @addtogroup STM32H7xx_System_Exported_Macros
  90   * @{
  91   */
  92
  93 /**
  94   * @}
  95   */
  96
  97 /** @addtogroup STM32H7xx_System_Exported_Functions
  98   * @{
  99   */
 100
 101 extern void SystemInit(void);
 102 extern void SystemCoreClockUpdate(void);
 103 /**
 104   * @}
 105   */
 106
 107 #ifdef __cplusplus
 108 }
 109 #endif
 110
 111 #endif /* SYSTEM_STM32H7XX_H */
 112
 113 /**
 114   * @}
 115   */
 116
 117 /**
 118   * @}
 119   */
 120 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/