STM32F107高级定时器TIM1使用 增量编码器接口配置



void Knob_Init(void)
{
 
 GPIO_InitTypeDef GPIO_InitStructure; 
 TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
 TIM_ICInitTypeDef TIM_ICInitStructure;
 
 
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO, ENABLE);
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
 GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE);

 GPIO_StructInit(&GPIO_InitStructure);
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
 GPIO_Init(GPIOE,&GPIO_InitStructure);
 
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
 GPIO_Init(GPIOE,&GPIO_InitStructure);
 
 TIM_DeInit(TIM1);
 TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
 TIM_TimeBaseStructure.TIM_Period = MAX_DISTANCE-1;
 TIM_TimeBaseStructure.TIM_Prescaler = 0;
 TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
 TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
 //TIM_ARRPreloadConfig(TIM1, ENABLE);//
 TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
 
 TIM_EncoderInterfaceConfig(TIM1, TIM_EncoderMode_TI12,
    TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);
 TIM_ICStructInit(&TIM_ICInitStructure); 
 TIM_ICInitStructure.TIM_ICFilter = 6;//ICx_FILTER;
 TIM_ICInit(TIM1, &TIM_ICInitStructure);

 TIM_ClearFlag(TIM1, TIM_FLAG_Update);
 //TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
 TIM_SetCounter(TIM1, 0);
 TIM_Cmd(TIM1, ENABLE);
 
 
}

直接调用以下函数获得计数值

n_Counter1 = TIM_GetCounter(TIM1);