/** ****************************************************************************** * @file system_stm32g0xx.h * @author MCD Application Team * @brief CMSIS Cortex-M0+ Device System Source File for STM32G0xx devices. ****************************************************************************** * @attention * * Copyright (c) 2018-2021 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 stm32g0xx_system * @{ */ /** * @brief Define to prevent recursive inclusion */ #ifndef SYSTEM_STM32G0XX_H #define SYSTEM_STM32G0XX_H #ifdef __cplusplus extern "C" { #endif /** @addtogroup STM32G0xx_System_Includes * @{ */ /** * @} */ /** @addtogroup STM32G0xx_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 Clock Frequency (Core Clock) */ extern const uint32_t AHBPrescTable[16]; /*!< AHB prescalers table values */ extern const uint32_t APBPrescTable[8]; /*!< APB prescalers table values */ /** * @} */ /** @addtogroup STM32G0xx_System_Exported_Constants * @{ */ /** * @} */ /** @addtogroup STM32G0xx_System_Exported_Macros * @{ */ /** * @} */ /** @addtogroup STM32G0xx_System_Exported_Functions * @{ */ extern void SystemInit(void); extern void SystemCoreClockUpdate(void); /** * @} */ #ifdef __cplusplus } #endif #endif /*SYSTEM_STM32G0XX_H */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/