stm32f10x_systick.h

STM32下做的usb转RS232程序

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : stm32f10x_systick.h
* Author             : MCD Application Team
* Version            : V1.0
* Date               : 10/08/2007
* Description        : This file contains all the functions prototypes for the
*                      SysTick firmware library.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_SYSTICK_H
#define __STM32F10x_SYSTICK_H

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_map.h"

/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* SysTick clock source */
#define SysTick_CLKSource_HCLK_Div8    ((u32)0xFFFFFFFB)
#define SysTick_CLKSource_HCLK         ((u32)0x00000004)

#define IS_SYSTICK_CLK_SOURCE(SOURCE) ((SOURCE == SysTick_CLKSource_HCLK) || \
                                       (SOURCE == SysTick_CLKSource_HCLK_Div8))

/* SysTick counter state */
#define SysTick_Counter_Disable        ((u32)0xFFFFFFFE)
#define SysTick_Counter_Enable         ((u32)0x00000001)
#define SysTick_Counter_Clear          ((u32)0x00000000)

#define IS_SYSTICK_COUNTER(COUNTER) ((COUNTER == SysTick_Counter_Disable) || \
                                     (COUNTER == SysTick_Counter_Enable)  || \
                                     (COUNTER == SysTick_Counter_Clear))

/* SysTick Flag */
#define SysTick_FLAG_COUNT             ((u8)0x30)
#define SysTick_FLAG_SKEW              ((u8)0x5E)
#define SysTick_FLAG_NOREF             ((u8)0x5F)

#define IS_SYSTICK_FLAG(FLAG) ((FLAG == SysTick_FLAG_COUNT) || \
                               (FLAG == SysTick_FLAG_SKEW)  || \
                               (FLAG == SysTick_FLAG_NOREF))

#define IS_SYSTICK_RELOAD(RELOAD) ((RELOAD > 0) && (RELOAD <= 0xFFFFFF))

/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void SysTick_CLKSourceConfig(u32 SysTick_CLKSource);
void SysTick_SetReload(u32 Reload);
void SysTick_CounterCmd(u32 SysTick_Counter);
void SysTick_ITConfig(FunctionalState NewState);
u32 SysTick_GetCounter(void);
FlagStatus SysTick_GetFlagStatus(u8 SysTick_FLAG);

#endif /* __STM32F10x_SYSTICK_H */

/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/