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#ifndef __SWM341_QEI_H__
#define __SWM341_QEI_H__
typedef struct {
uint8_t mode; //QEI_MODE_X2、QEI_MODE_X4
uint16_t maxcnt; //最大计数值
uint8_t swapAB; //1 交换A、B引脚
uint8_t intINDEXEn; //检测到Index脉冲中断使能
uint8_t intMATCHEn; //POSCNT递增到与MAXCNT相等，或POSCNT从MAXCNT递减到0中断使能
uint8_t intCNTOVEn; //Counter Overrun，计数器溢出中断使能
uint8_t intERROREn; //计数器错误中断使能
} QEI_InitStructure;
#define QEI_MODE_X2 0
#define QEI_MODE_X4 1
#define QEI_INT_INDEX (1 << 0)
#define QEI_INT_MATCH (1 << 1)
#define QEI_INT_CNTOV (1 << 2)
#define QEI_INT_ERROR (1 << 3)
void QEI_Init(QEI_TypeDef * QEIx, QEI_InitStructure * initStruct); //QEI初始化
void QEI_Start(QEI_TypeDef * QEIx); //启动QEI
void QEI_Stop(QEI_TypeDef * QEIx); //关闭QEI
uint32_t QEI_IndexLvl(QEI_TypeDef * QEIx); //QEI Index引脚电平
uint32_t QEI_CountDir(QEI_TypeDef * QEIx); //QEI计数方向，0 反向计数 1 正向计数
void QEI_IntEn(QEI_TypeDef * QEIx, uint32_t it); //QEI中断使能
void QEI_IntDis(QEI_TypeDef * QEIx, uint32_t it); //QEI中断关闭
void QEI_IntClr(QEI_TypeDef * QEIx, uint32_t it); //QEI中断标志清除
uint32_t QEI_IntStat(QEI_TypeDef * QEIx, uint32_t it); //QEI中断状态查询
#endif //__SWM341_QEI_H__
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