求助呀望大佬们能够支援一下~STM32f407编码器接口模式

MrzhangLL · 发表于 2019-4-5 10:00:07

在使用编码器模式的时候，参考别人的代码，上面设置CC1P和CC1NP的时候出现了问题，感觉有点矛盾，小白第一次发帖，还望大佬们能够支援一下，均配置成0的话，计数器只会向一个方向计数
下面是代码，不知道哪里出现了问题，在配置通道的时候，为什么只配置一个通道呀，如果两个都配置的话，就没有数据了
void My_TIMER_Init(void)
{
uint16_t tmpsmcr = 0;
  uint16_t tmpccmr1 = 0;
  uint16_t tmpccer = 0；

TIM_ICInitTypeDef TIM_ICInitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure2;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);//

TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 2048*4;  //
TIM_TimeBaseStructure.TIM_Prescaler = 0; //
TIM_TimeBaseStructure.TIM_ClockDivision =TIM_CKD_DIV1 ;//
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure);

//配置编码器接口模式
tmpsmcr = TIM4->SMCR;
  tmpccmr1 = TIM4->CCMR1;
  tmpccer = TIM4->CCER;
  tmpsmcr &= (uint16_t)~TIM_SMCR_SMS;  //
tmpsmcr |= 0x0003;                                                                                           // SMS = 011
tmpccmr1 &= ((uint16_t)~TIM_CCMR1_CC1S) & ((uint16_t)~TIM_CCMR1_CC2S);

tmpccmr1 |= ((uint16_t)TIM_CCMR1_CC1S_0 | (uint16_t)TIM_CCMR1_CC2S_0);       //设置CC1S 和 CC2S
tmpccer &= ((uint16_t)~TIM_CCER_CC1P) & ((uint16_t)~TIM_CCER_CC2P); //       设置CC1P 和 CC2P

tmpccer &= ((uint16_t)~TIM_CCER_CC1NP & (uint16_t)~TIM_CCER_CC2NP); //
tmpccmr1 &= 0x0F0F; //
TIM4->SMCR = tmpsmcr;
TIM4->CCMR1 = tmpccmr1;
TIM4->CCER = tmpccer;

TIM_EncoderInterfaceConfig(TIM5,TIM_EncoderMode_TI12,TIM_ICPolarity_Rising,TIM_ICPolarity_Rising); //配置了 CC1S CC2S CC1P  CC2P  SMS
TIM_ICStructInit(&TIM_ICInitStructure);

//* TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
//TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
// TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
// TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;*/
TIM_ICInitStructure.TIM_ICFilter = 6;
TIM_ICInit(TIM5,&TIM_ICInitStructure);

//* TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
//TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
// TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;
//TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
//TIM_ICInitStructure.TIM_ICFilter = 0;
// TIM_ICInit(TIM4,&TIM_ICInitStructure);*/             //这里有想配置两个通道，但试了下，不行，
/* TIM4->SMCR = tmpsmcr;
TIM4->CCMR1 = tmpccmr1;
TIM4->CCER = tmpccer;*/

NVIC_InitStructure2.NVIC_IRQChannel = TIM5_IRQn;
NVIC_InitStructure2.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure2.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure2.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure2);

TIM_ClearFlag(TIM5, TIM_FLAG_Update);//
TIM_ITConfig(TIM5, TIM_IT_Update, ENABLE);//

TIM5->CNT = 0;//
TIM_Cmd(TIM5, ENABLE); //

}

MrzhangLL · 发表于 2019-4-5 10:11:52

金钱只有这么多呀，已经全给了

xuyaqi · 发表于 2019-4-5 13:06:25

把整个工程发出来才好试并找问题。

MrzhangLL · 发表于 2019-4-5 18:09:07

xuyaqi 发表于 2019-4-5 13:06
把整个工程发出来才好试并找问题。

void My_GPIO_Init(void)  //PB6  TIM4_CH1 PB7 TIM4_CH2
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE); //Ê¹ÄÜGPIOAÊ±ÖÓ

//
GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_TIM4); //GPIOA9¸´ÓÃÎªTIM3
GPIO_PinAFConfig(GPIOB,GPIO_PinSource7,GPIO_AF_TIM4); //GPIOA10
//
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; //
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //ÉÏÀ
GPIO_Init(GPIOB,&GPIO_InitStructure); //
//GPIO_ResetBits(GPIOB,GPIO_Pin_7);

}

void My_TIMER_Init(void)
{
uint16_t tmpsmcr = 0;
  uint16_t tmpccmr1 = 0;
  uint16_t tmpccer = 0;
TIM_ICInitTypeDef TIM_ICInitStructure;
// uint16_t tmpccmr2 = 0;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure2;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//Ê¹ÄÜTIM4Ê±ÖÓ

//TIM_DeInit(TIM4);
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 2048*4;  //
TIM_TimeBaseStructure.TIM_Prescaler = 0; //
TIM_TimeBaseStructure.TIM_ClockDivision =TIM_CKD_DIV1 ;//
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);

//
tmpsmcr = TIM4->SMCR;
  tmpccmr1 = TIM4->CCMR1;
  tmpccer = TIM4->CCER;
  tmpsmcr &= (uint16_t)~TIM_SMCR_SMS;  //ÉèÖÃ±àÂëÆ÷Ä£Ê½
tmpsmcr |= 0x0003;    // SMS = 011
tmpccmr1 &= ((uint16_t)~TIM_CCMR1_CC1S) & ((uint16_t)~TIM_CCMR1_CC2S);
tmpccmr1 |= ((uint16_t)TIM_CCMR1_CC1S_0 | (uint16_t)TIM_CCMR1_CC2S_0);       //CC1S  ºÍ  CC2S  ¾ùÉèÖÃÎª 01  Í¨µÀÅäÖÃÎªÊäÈëTI1FP1 Ó³Éäµ½TI1 TI2FP2 Ó³Éäµ½TI2
tmpccer &= ((uint16_t)~TIM_CCER_CC1P) & ((uint16_t)~TIM_CCER_CC2P); //½«CC1P ºÍ CC2P Î» ÇåÁã
tmpccer &= ((uint16_t)~TIM_CCER_CC1NP & (uint16_t)~TIM_CCER_CC2NP); //½«CC2NP  CC1NP ÇåÁã CC1P/CC1NP ·Ç·´ÏàÉÏÉýÑØ´¥·¢
tmpccmr1 |= 0xA0A0; //IC1F£¨ÊäÈë²¶»ñÒ»ÂË²¨Æ÷£©  Óë IC2F£¨ÊäÈë²¶»ñ2ÂË²¨Æ÷£© ¾ùÉèÖÃÎª1010
TIM4->SMCR = tmpsmcr;
TIM4->CCMR1 = tmpccmr1;
TIM4->CCER = tmpccer;

NVIC_InitStructure2.NVIC_IRQChannel = TIM4_IRQn;
NVIC_InitStructure2.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure2.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure2.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure2);

TIM_ClearFlag(TIM4, TIM_FLAG_Update);//Çå³ýTIM3µÄ¸üÐÂ±êÖ¾Î»
TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//ÔËÐÐ¸üÐÂÖÐ¶Ï

TIM4->CNT = 0;//
TIM_Cmd(TIM4, ENABLE); //Æô¶¯TIM4¶¨Ê±Æ÷

}

int circle_count = 0;

void TIM4_IRQHandler(void)
{
if(TIM_GetITStatus(TIM4,TIM_IT_Update)==SET)
{
if((TIM4->CR1>>4 & 0x01)==0) //DIR==0
         circle_count++;
      else if((TIM4->CR1>>4 & 0x01)==1)//DIR==1
         circle_count--;
   }
TIM_ClearITPendingBit(TIM4,TIM_IT_Update);
}