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Drivers/CMSIS/Device/ST/STM32H5xx/Include/system_stm32h5xx.h

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+/**
+  ******************************************************************************
+  * @file    system_stm32h5xx.h
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M33 Device System Source File for STM32H5xx devices.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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 stm32h5xx_system
+  * @{
+  */
+
+#ifndef SYSTEM_STM32H5XX_H
+#define SYSTEM_STM32H5XX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @addtogroup STM32H5xx_System_Includes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32H5xx_System_Exported_Variables
+  * @{
+  */
+  /* The SystemCoreClock 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 Clock Frequency (Core Clock)  */
+
+extern const uint8_t  AHBPrescTable[16];    /*!< AHB prescalers table values */
+extern const uint8_t  APBPrescTable[8];     /*!< APB prescalers table values */
+
+/**
+  * @}
+  */
+
+
+/** @addtogroup STM32H5xx_System_Exported_Functions
+  * @{
+  */
+
+/**
+  * @brief Setup the microcontroller system.
+  *
+  * Initialize the System and update the SystemCoreClock variable.
+  */
+extern void SystemInit (void);
+
+
+/**
+  * @brief  Update SystemCoreClock variable.
+  *
+  * Updates the SystemCoreClock with current core Clock retrieved from cpu registers.
+  */
+extern void SystemCoreClockUpdate (void);
+
+
+/**
+  * @brief Update SystemCoreClock variable from secure application and return its value
+  *        when security is implemented in the system (Non-secure callable function).
+  *
+  * Returns the SystemCoreClock value with current core Clock retrieved from cpu registers.
+  */
+extern uint32_t SECURE_SystemCoreClockUpdate(void);
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYSTEM_STM32H5XX_H */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */