正交编码器没反应。程序哪错了，跪求帮助，谢谢啦

只看该作者 · 2015-7-31 19:11

#include"zjbmq.h"

void ENC_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_ICInitTypeDef TIM_ICInitStructure;

GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//使能ＴＩＭ３

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

GPIO_StructInit(&GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

TIM_DeInit(TIM3);
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);

TIM_TimeBaseStructure.TIM_Prescaler = 0; //设置预分频：
TIM_TimeBaseStructure.TIM_Period = (4*1000)-1;;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12,
                           TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);
TIM_ICStructInit(&TIM_ICInitStructure);
TIM_ICInitStructure.TIM_ICFilter = 6;
TIM_ICInit(TIM3, &TIM_ICInitStructure);

// Clear all pending interrupts
TIM_ClearFlag(TIM3, TIM_FLAG_Update);
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
//Reset counter
TIM3->CNT = 0;

TIM_Cmd(TIM3, ENABLE);
}

s16 ENC_Get_Electrical_Angle(void)
{
static u16 lastCount =0;
u16 curCount = TIM3->CNT;
s32 dAngle =curCount - lastCount;
if(dAngle >= 500)
{
      dAngle -=1000;
}
else if(dAngle < -500)
{
   dAngle += 1000;
}
lastCount = curCount;
return (s16)dAngle;
}

只看该作者 · 2015-7-31 19:25

求帮助，急需帮助

只看该作者 · 2015-7-31 19:55

1万 · 2015-7-31 20:25

寄存器版本的。。。。。。。。库函数我不会。。。。。。

/* ------------------------------- TIM3 编码器接口 A/B signal ----------------------------- */
TIM3->CR1 = 0;    /* use default value 或许是UP/DOWN模式？ */
TIM3->ARR = BLDC_TIM3_PERIOD;
TIM3->SMCR = 3;    /* Encoder mode 3 */
TIM3->CCER = 0;    /* CC1P/CC2P = 0, normal(non-invert) input */
TIM3->DIER = 1;    /* Update */
TIM3->CR1 |= 1;    /* run */

NVIC_EnableIRQ(TIM3_IRQn);
/* ------------------------------- EXTI-Line2 编码器接口 I signal ------------------------- */
EXTI->IMR  |= 1 << 2;
EXTI->RTSR |= 1 << 2;
AFIO->EXTICR[0] = (AFIO->EXTICR[0] & ~(0xful << 8)) | (3 << 8); /* PD2 */
NVIC_EnableIRQ(EXTI2_IRQn);

只看该作者 · 2015-8-1 08:15

戈卫东发表于 2015-7-31 20:25
寄存器版本的。。。。。。。。库函数我不会。。。。。。

/* ------------------------------- TIM3 编 ...

谢谢呀，只可惜这个我看不懂:'(

只看该作者 · 2015-8-1 10:29

最近做的东西中也有正交编码器，之前用高级TIM1一直不行，换了TIM4就可以了，看了你的程序，配置大概没有问题，你换个TIM4试试

只看该作者 · 2015-8-1 10:50

为生活而努力发表于 2015-8-1 10:29
最近做的东西中也有正交编码器，之前用高级TIM1一直不行，换了TIM4就可以了，看了你的程序，配置大概没有问 ...

谢谢啦，能把你的程序发一份参考一下不:hug:

只看该作者 · 2015-8-1 11:11

就目前来看主要是TIM3没有值，令CurrentCount = TIM_GetCapture1(TIM3);发现CurrentCount始终为零，请问大神该如何调试，急需帮助。谢谢:hug:

只看该作者 · 2015-8-1 15:05

#include "encode.h"

#define ENCODER_TIM_PERIOD 38500    //编码器转一圈产生的脉冲数

//配置编码器端口
void Encode_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//使能GPIOB时钟

GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

// TIM1中断优先级配置
void TIM4_NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
   NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

void TIM4_Configuration(void)
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_ICInitTypeDef TIM_ICInitStructure;
//时钟源
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);

TIM_DeInit(TIM1);
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);

TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
//TIM_TimeBaseStructure.TIM_Period = (4*ENCODER_PPR)-1;  //设置自动重装载值
TIM_TimeBaseStructure.TIM_Period = ENCODER_TIM_PERIOD-1;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);

      //编码器接口配置
TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12,
      TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);

TIM_ICStructInit(&TIM_ICInitStructure); //设置缺省默认值
TIM_ICInitStructure.TIM_ICFilter =6;
//选择输入比较滤波器初始化
TIM_ICInit(TIM4, &TIM_ICInitStructure);

// Clear all pending interrupts
TIM_ClearFlag(TIM4, TIM_FLAG_Update);
TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);

// TIM1->CNT =0;
//CurrentCount = TIM1->CNT;
TIM_Cmd(TIM4, ENABLE);
}
void Encode_Init(void)
{
      Encode_GPIO_Config();
      TIM4_NVIC_Configuration();
      TIM4_Configuration();
}

/*********************************************END OF FILE**********************/

主函数部分

while(1)
{
if ( time == 20 ) /* 1000 * 1 ms = 1s Ê±¼äµ½ */
{
   time = 0;
   temp=TIM_GetCounter(TIM4);
   __NOP();
}
}
}

中断部分
/*********************************************END OF FILE**********************/

void TIM4_IRQHandler(void)
{
if(TIM_GetITStatus(TIM4, TIM_IT_Update) == SET)
{
            TIM_ClearITPendingBit(TIM4,TIM_IT_Update);

            if(1==((TIM4->CR1)&0x0010)>>4)
            {
                     Direction--;
      __NOP();
            }

            if(0==((TIM4->CR1)&0x0010)>>4)
            {
                     Direction++;
      __NOP();
            }
}
}