為啥我的編碼器返回的CNT的值一直是0啊,求指教一下單片機程序

ID:1088657 · 發(fā)表于 2023-7-20 11:21

編碼器的具體單片機程序如下：

#include "stm32f10x.h"                // Device header

void Encoder1_Init(void)//編碼器1
{RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

      GPIO_InitTypeDef GPIO_InitStructure;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_0;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOA, &GPIO_InitStructure);

      TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
      TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
      TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInitStructure.TIM_Period = 65536 - 1;             //ARR
      TIM_TimeBaseInitStructure.TIM_Prescaler = 1 - 1;             //PSC
      TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
      TIM_TimeBaseInit(TIM2, &TIM_TimeBaseInitStructure);

      TIM_ICInitTypeDef TIM_ICInitStructure;
      TIM_ICStructInit(&TIM_ICInitStructure);
      TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
      TIM_ICInitStructure.TIM_ICFilter = 0xF;
      TIM_ICInit(TIM2, &TIM_ICInitStructure);
      TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;
      TIM_ICInitStructure.TIM_ICFilter = 0xF;
      TIM_ICInit(TIM2, &TIM_ICInitStructure);

      TIM_EncoderInterfaceConfig(TIM2, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);

      TIM_Cmd(TIM2, ENABLE);
}
int16_t Encoder1_Get(void)
{
//       int16_t Temp;
//       Temp =
      return TIM_GetCounter(TIM2);
//       TIM_SetCounter(TIM3, 0);
//       return Temp;
}
void Encoder2_Init(void)//編碼器2
{
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

      GPIO_InitTypeDef GPIO_InitStructure;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOB, &GPIO_InitStructure);

      TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
      TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
      TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInitStructure.TIM_Period = 65536 - 1;             //ARR
      TIM_TimeBaseInitStructure.TIM_Prescaler = 1 - 1;             //PSC
      TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0;
      TIM_TimeBaseInit(TIM4, &TIM_TimeBaseInitStructure);

      TIM_ICInitTypeDef TIM_ICInitStructure;
      TIM_ICStructInit(&TIM_ICInitStructure);
      TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
      TIM_ICInitStructure.TIM_ICFilter = 0xF;
      TIM_ICInit(TIM4, &TIM_ICInitStructure);
      TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;
      TIM_ICInitStructure.TIM_ICFilter = 0xF;
      TIM_ICInit(TIM4, &TIM_ICInitStructure);

      TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);

      TIM_Cmd(TIM4, ENABLE);
}

int16_t Encoder2_Get(void)
{
//       int16_t Temp;
//       Temp =
      return TIM_GetCounter(TIM4);
//       TIM_SetCounter(TIM3, 0);
//       return Temp;
}

ID:883242 · 發(fā)表于 2023-7-20 15:58

沒聽說過哪種STM32支持Quadrature encoder

ID:123289 · 發(fā)表于 2023-7-21 14:52

【編碼器】手冊上是怎么說的呢？

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