关于stm32f334的正交编码

看库函数使用手册，还是数据手册

数据手册

        NVIC_InitTypeDef NVIC_InitStructure;
        GPIO_InitTypeDef GPIO_InitStructure;        

        TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        TIM_ICInitTypeDef TIM_ICInitStructure;
       
        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
        RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE);
       
        GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_TIM4);
        GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_TIM4);   

        GPIO_StructInit(&GPIO_InitStructure);
        /* Configure PB.06,07 as encoder input */
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;         
        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
        GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;
        GPIO_Init(GPIOB, &GPIO_InitStructure);

        NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

        TIM_DeInit(X_ENCODER_TIMER);
        TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);

        TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
        TIM_TimeBaseStructure.TIM_Period = 40000-1;
        TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseInit(X_ENCODER_TIMER, &TIM_TimeBaseStructure);
   
        TIM_EncoderInterfaceConfig(X_ENCODER_TIMER, TIM_EncoderMode_TI12,TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);
        TIM_ICStructInit(&TIM_ICInitStructure);
        TIM_ICInitStructure.TIM_ICFilter = X_ICx_FILTER;
        TIM_ICInit(X_ENCODER_TIMER, &TIM_ICInitStructure);

        // Clear all pending interrupts
        TIM_ClearFlag(X_ENCODER_TIMER, TIM_FLAG_Update);
        TIM_ITConfig(X_ENCODER_TIMER, TIM_IT_Update, ENABLE);
       
        X_ENCODER_TIMER->SR = 0xfffe;  
        TIM_Cmd(X_ENCODER_TIMER, ENABLE);  

我说我只能帮你到这了。

真的非常感谢~