lib/main/STM32H7/Drivers/CMSIS/Device/ST/STM32H7xx/Include/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.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19
  20 /** @addtogroup CMSIS
  21   * @{
  22   */
  23
  24 /** @addtogroup stm32h7xx_system
  25   * @{
  26   */
  27
  28 /**
  29   * @brief Define to prevent recursive inclusion
  30   */
  31 #ifndef SYSTEM_STM32H7XX_H
  32 #define SYSTEM_STM32H7XX_H
  33
  34 #ifdef __cplusplus
  35  extern "C" {
  36 #endif
  37
  38 /** @addtogroup STM32H7xx_System_Includes
  39   * @{
  40   */
  41
  42 /**
  43   * @}
  44   */
  45
  46
  47 /** @addtogroup STM32H7xx_System_Exported_types
  48   * @{
  49   */
  50   /* This variable is updated in three ways:
  51       1) by calling CMSIS function SystemCoreClockUpdate()
  52       2) by calling HAL API function HAL_RCC_GetSysClockFreq()
  53       3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
  54          Note: If you use this function to configure the system clock; then there
  55                is no need to call the 2 first functions listed above, since SystemCoreClock
  56                variable is updated automatically.
  57   */
  58 extern uint32_t SystemCoreClock;             /*!< System Domain1 Clock Frequency  */
  59 extern uint32_t SystemD2Clock;               /*!< System Domain2 Clock Frequency  */
  60 extern const  uint8_t D1CorePrescTable[16] ; /*!< D1CorePrescTable prescalers table values */
  61
  62 /**
  63   * @}
  64   */
  65
  66 /** @addtogroup STM32H7xx_System_Exported_Constants
  67   * @{
  68   */
  69
  70 /**
  71   * @}
  72   */
  73
  74 /** @addtogroup STM32H7xx_System_Exported_Macros
  75   * @{
  76   */
  77
  78 /**
  79   * @}
  80   */
  81
  82 /** @addtogroup STM32H7xx_System_Exported_Functions
  83   * @{
  84   */
  85
  86 extern void SystemInit(void);
  87 extern void SystemCoreClockUpdate(void);
  88 /**
  89   * @}
  90   */
  91
  92 #ifdef __cplusplus
  93 }
  94 #endif
  95
  96 #endif /* SYSTEM_STM32H7XX_H */
  97
  98 /**
  99   * @}
 100   */
 101
 102 /**
 103   * @}
 104   */
 105 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/