1 #ifndef __SWM341_QEI_H__ 2 #define __SWM341_QEI_H__ 3 4 typedef struct { 5 uint8_t mode; //QEI_MODE_X2、QEI_MODE_X4 6 uint16_t maxcnt; //最大计数值 7 uint8_t swapAB; //1 交换A、B引脚 8 uint8_t intINDEXEn; //检测到Index脉冲中断使能 9 uint8_t intMATCHEn; //POSCNT递增到与MAXCNT相等，或POSCNT从MAXCNT递减到0中断使能 10 uint8_t intCNTOVEn; //Counter Overrun，计数器溢出中断使能 11 uint8_t intERROREn; //计数器错误中断使能 12 } QEI_InitStructure; 13 14 15 #define QEI_MODE_X2 0 16 #define QEI_MODE_X4 1 17 18 #define QEI_INT_INDEX (1 << 0) 19 #define QEI_INT_MATCH (1 << 1) 20 #define QEI_INT_CNTOV (1 << 2) 21 #define QEI_INT_ERROR (1 << 3) 22 23 24 void QEI_Init(QEI_TypeDef * QEIx, QEI_InitStructure * initStruct); //QEI初始化 25 void QEI_Start(QEI_TypeDef * QEIx); //启动QEI 26 void QEI_Stop(QEI_TypeDef * QEIx); //关闭QEI 27 28 uint32_t QEI_IndexLvl(QEI_TypeDef * QEIx); //QEI Index引脚电平 29 uint32_t QEI_CountDir(QEI_TypeDef * QEIx); //QEI计数方向，0 反向计数 1 正向计数 30 31 void QEI_IntEn(QEI_TypeDef * QEIx, uint32_t it); //QEI中断使能 32 void QEI_IntDis(QEI_TypeDef * QEIx, uint32_t it); //QEI中断关闭 33 void QEI_IntClr(QEI_TypeDef * QEIx, uint32_t it); //QEI中断标志清除 34 uint32_t QEI_IntStat(QEI_TypeDef * QEIx, uint32_t it); //QEI中断状态查询 35 36 37 #endif //__SWM341_QEI_H__ 38