cmsis-system_stm32f4xx.h

/**
  ******************************************************************************
  * @file    system_stm32f4xx.h
  * @author  MCD Application Team
  * @version V2.3.2
  * @date    26-June-2015
  * @brief   CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/*
  Notes for Teacup:

  Copied from $(MBED)/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F411RE/system_stm32f4xx.h.

  - Prefixed names of #include files with cmsis- to match the names of the
    copies in the Teacup repo.
  - Cleanup file
  - Add different clock frequencies
*/
  
/**
  * @brief Define to prevent recursive inclusion
  */
#ifndef __SYSTEM_STM32F4XX_H
#define __SYSTEM_STM32F4XX_H

#ifdef __cplusplus
 extern "C" {
#endif

// #define __SYSTEM_CLOCK 96000000
#define __SYSTEM_CLOCK 100000000
// #define __SYSTEM_CLOCK 108000000 // Overclocking is not recommended!

/* 
  This variable is updated in by calling CMSIS function SystemCoreClockUpdate()
*/
extern uint32_t SystemCoreClock;          /*!< System Clock Frequency (Core Clock) */

extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
extern void SetSysClock(void);

#ifdef __cplusplus
}
#endif

#endif /*__SYSTEM_STM32F4XX_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/