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   * Copyright (c) 2017 STMicroelectronics.
10   * All rights reserved.
11   *
12   * This software is licensed under terms that can be found in the LICENSE file
13   * in the root directory of this software component.
14   * If no LICENSE file comes with this software, it is provided AS-IS.
15   *
16   ******************************************************************************
17   */
18 
19 /** @addtogroup CMSIS
20   * @{
21   */
22 
23 /** @addtogroup stm32h7xx_system
24   * @{
25   */
26 
27 /**
28   * @brief Define to prevent recursive inclusion
29   */
30 #ifndef SYSTEM_STM32H7XX_H
31 #define SYSTEM_STM32H7XX_H
32 
33 #ifdef __cplusplus
34  extern "C" {
35 #endif
36 
37 /** @addtogroup STM32H7xx_System_Includes
38   * @{
39   */
40 
41 /**
42   * @}
43   */
44 
45 
46 /** @addtogroup STM32H7xx_System_Exported_types
47   * @{
48   */
49   /* This variable is updated in three ways:
50       1) by calling CMSIS function SystemCoreClockUpdate()
51       2) by calling HAL API function HAL_RCC_GetSysClockFreq()
52       3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
53          Note: If you use this function to configure the system clock; then there
54                is no need to call the 2 first functions listed above, since SystemCoreClock
55                variable is updated automatically.
56   */
57 extern uint32_t SystemCoreClock;             /*!< System Domain1 Clock Frequency  */
58 extern uint32_t SystemD2Clock;               /*!< System Domain2 Clock Frequency  */
59 extern const  uint8_t D1CorePrescTable[16] ; /*!< D1CorePrescTable prescalers table values */
60 
61 /**
62   * @}
63   */
64 
65 /** @addtogroup STM32H7xx_System_Exported_Constants
66   * @{
67   */
68 
69 /**
70   * @}
71   */
72 
73 /** @addtogroup STM32H7xx_System_Exported_Macros
74   * @{
75   */
76 
77 /**
78   * @}
79   */
80 
81 /** @addtogroup STM32H7xx_System_Exported_Functions
82   * @{
83   */
84 
85 extern void SystemInit(void);
86 extern void SystemCoreClockUpdate(void);
87 /**
88   * @}
89   */
90 
91 #ifdef __cplusplus
92 }
93 #endif
94 
95 #endif /* SYSTEM_STM32H7XX_H */
96 
97 /**
98   * @}
99   */
100 
101 /**
102   * @}
103   */
104