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); //
}
友情提示: 此问题已得到解决，问题已经关闭,关闭后问题禁止继续编辑，回答。
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void My_GPIO_Init(void) //PB6 TIM4_CH1 PB7 TIM4_CH2
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE); //ʹÄÜGPIOAʱÖÓ
//
GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_TIM4); //GPIOA9¸´ÓÃΪTIM3
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);//ʹÄÜTIM4ʱÖÓ
//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; //ÉèÖñàÂëÆ÷ģʽ
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 ¾ùÉèÖÃΪ 01 ͨµÀÅäÖÃΪÊäÈëTI1FP1 Ó³Éäµ½TI1 TI2FP2 Ó³Éäµ½TI2
tmpccer &= ((uint16_t)~TIM_CCER_CC1P) & ((uint16_t)~TIM_CCER_CC2P); //½«CC1P ºÍ CC2P λ ÇåÁã
tmpccer &= ((uint16_t)~TIM_CCER_CC1NP & (uint16_t)~TIM_CCER_CC2NP); //½«CC2NP CC1NP ÇåÁã CC1P/CC1NP ·Ç·´ÏàÉÏÉýÑØ´¥·¢
tmpccmr1 |= 0xA0A0; //IC1F£¨ÊäÈ벶»ñÒ»Â˲¨Æ÷£© Óë IC2F£¨ÊäÈ벶»ñ2Â˲¨Æ÷£© ¾ùÉèÖÃΪ1010
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¸üбê־λ
TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//ÔËÐиüÐÂÖжÏ
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);
}
大概就这个样子
大佬帮帮忙看下问题出在哪呀，
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