添加一些关于midi播放的项目
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/******************************************************************************
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*
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* @brief PIT 驱动头文件.
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*
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******************************************************************************/
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#ifndef PIT_H_
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#define PIT_H_
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#include"common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/******************************************************************************
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* PIT 通道号列表
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*
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*//*!
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*******************************************************************************/
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enum
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{
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PIT_CHANNEL0 = 0, /*!< PIT 通道 0 */
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PIT_CHANNEL1 /*!< PIT 通道 1 */
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};
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/*! */
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/*!
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* @brief PIT 回调类型.
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*
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*/
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typedef void (*PIT_CallbackType)(void);
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/* PIT 配置结构体体
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*/
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/*!
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* @brief PIT 配置参数.
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*
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*/
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typedef struct
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{
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uint8_t bFreeze : 1; /*!< 1: 在调试模式时冻结, 0: 在调试模式时仍然运行 */
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uint8_t bModuleDis : 1; /*!< 1: 禁用PIT模块, 0: 使能PIT模块 */
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uint8_t bReserved0 : 1; /*!< 保留 */
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uint8_t bReserved1 : 5; /*!< 保留 */
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uint8_t bETMerEn : 1; /*!< 1: 使能PIT通道, 0: 禁止PIT通道 */
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uint8_t bInterruptEn : 1; /*!< 1: 使能PIT通道中断, 0: 禁止PIT通道中断 */
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uint8_t bChainMode : 1; /*!< 1: 使能链模式, 0: 禁止链模式 */
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uint8_t bReserved2 : 5; /*!< 保留 */
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uint8_t bFlag : 1; /*!< 1: PIT中断标志位置位,写1清0, 0: PIT中断标志位没有置位 */
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uint8_t bReserved3 : 7; /*!< 保留 */
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uint32_t u32LoadValue ; /*!< 32位通道加载模值 */
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} PIT_ConfigType, *PIT_ConfigPtr;
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/******************************************************************************
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******************************************************************************/
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/*!
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* 内联函数
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*/
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/*****************************************************************************//*!
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*
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* @brief 使能PIT模块.
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*
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* @param none
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_Enable(void)
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{
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PIT->MCR &= ~PIT_MCR_MDIS_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 禁用PIT模块.
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*
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* @param none
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_Disable(void)
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{
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PIT->MCR |= PIT_MCR_MDIS_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 设置PIT在调试模式下禁止运行.
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*
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* @param none
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_SetDebugFreeze(void)
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{
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PIT->MCR |= PIT_MCR_FRZ_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 设置PIT在调试模式下继续运行.
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*
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* @param none
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_SetDebugOn(void)
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{
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PIT->MCR &= ~PIT_MCR_FRZ_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief PIT定时器通道使能.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelEnable(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_TEN_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 禁用PIT定时器通道.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelDisable(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_TEN_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 使能PIT定时器通道中断.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelEnableInt(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_TIE_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 禁用PIT定时器通道中断.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelDisableInt(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_TIE_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 使能PIT定时器通道链模式.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelEnableChain(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_CHN_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 禁用PIT定时器通道链模式.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelDisableChain(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_CHN_MASK;
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}
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/*****************************************************************************//*!
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*
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* @brief 获取PIT通道中断标志位.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return PIT通道中断标志位.
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*
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*****************************************************************************/
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__STATIC_INLINE uint8_t PIT_ChannelGetFlags(uint8_t u8Channel)
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{
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uint8_t bflag;
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bflag = (PIT->CHANNEL[u8Channel].TFLG & PIT_TFLG_TIF_MASK);
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return bflag;
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}
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/*****************************************************************************//*!
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*
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* @brief 清除PIT通道中断标志位.
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*
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* @param[in] u8Channel 通道号.
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*
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* @return none
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*
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*****************************************************************************/
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__STATIC_INLINE void PIT_ChannelClrFlags(uint8_t u8Channel)
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{
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PIT->CHANNEL[u8Channel].TFLG |= PIT_TFLG_TIF_MASK;
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}
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/******************************************************************************
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******************************************************************************/
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void PIT_Init(uint8_t u8Channel_No, PIT_ConfigType *pConfig);
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void PIT_SetLoadVal(uint8_t u8Channel, uint32_t u32loadvalue);
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void PIT_SetCallback(uint8_t u8Channel_No, PIT_CallbackType pfnCallback);
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void PIT_DeInit(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PIT_H_ */
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