blob: e228ef740f36b1b878c858fabdcd92170b207c9d (
plain) (
tree)
|
|
/**
******************************************************************************
* @file system_stm32h7xx.h
* @author MCD Application Team
* @brief CMSIS Cortex-Mx Device System Source File for STM32H7xx devices.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32h7xx_system
* @{
*/
/**
* @brief Define to prevent recursive inclusion
*/
#ifndef SYSTEM_STM32H7XX_H
#define SYSTEM_STM32H7XX_H
#ifdef __cplusplus
extern "C" {
#endif
/** @addtogroup STM32H7xx_System_Includes
* @{
*/
/**
* @}
*/
/** @addtogroup STM32H7xx_System_Exported_types
* @{
*/
/* This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetSysClockFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
Note: If you use this function to configure the system clock; then there
is no need to call the 2 first functions listed above, since SystemCoreClock
variable is updated automatically.
*/
extern uint32_t SystemCoreClock; /*!< System Domain1 Clock Frequency */
extern uint32_t SystemD2Clock; /*!< System Domain2 Clock Frequency */
extern const uint8_t D1CorePrescTable[16] ; /*!< D1CorePrescTable prescalers table values */
/**
* @}
*/
/** @addtogroup STM32H7xx_System_Exported_Constants
* @{
*/
/**
* @}
*/
/** @addtogroup STM32H7xx_System_Exported_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32H7xx_System_Exported_Functions
* @{
*/
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* SYSTEM_STM32H7XX_H */
/**
* @}
*/
/**
* @}
*/
|
