xiaodc88 发表于 2015-2-2 11:25:22

上传一个编码器的资料，有代码了哦

本帖最后由 xiaodc88 于 2015-2-2 14:19 编辑

都说STM32可以接编码器的，手册中也有说明，但手册中没有编码器的资料，今天特来发一个，对于没接触过的人看了本资料后对编码器也能有所了解，用过的人直接飘过。。。

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参考代码：这里将编码器挂在定时器2上，肯定可以用的哈
void TIM2_Configuration(void)    //
{

GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
TIM_TimeBaseInitTypeDefTIM_TimeBaseStructure;
TIM_ICInitTypeDef TIM_ICInitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
/* TIM3 clock source enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
/* Enable GPIOA, clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

GPIO_StructInit(&GPIO_InitStructure);
/* Configure PA.06,07 as encoder input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
   

   
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;   //
GPIO_Init(GPIOA, &GPIO_InitStructure);
   

/* Enable the TIM3 Update Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;   //
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;         //
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

/* Timer configuration in Encoder mode */
TIM_DeInit(TIM2);
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);

TIM_TimeBaseStructure.TIM_Prescaler = 0x0;//
TIM_TimeBaseStructure.TIM_Period = (65535);//
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;   
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

//²ÎÊý£º¶¨Ê±Æ÷¡¢´¥·¢Ô´¡¢IC1¼«ÐÔ¡¢IC2¼«ÐÔ
TIM_EncoderInterfaceConfig(TIM2, TIM_EncoderMode_TI12,
                           TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);

//²ÎÊý£º¶¨Ê±Æ÷¡¢´¥·¢Ô´¡¢IC1¼«ÐÔ¡¢IC2¼«ÐÔ
//TIM_EncoderInterfaceConfig(TIM2, TIM_EncoderMode_TI1,
//                           TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);

TIM_ICStructInit(&TIM_ICInitStructure);

TIM_ICInitStructure.TIM_ICFilter = 8;       //
TIM_ICInit(TIM2, &TIM_ICInitStructure);

TIM_ICInitStructure.TIM_Channel = TIM_Channel_1; //
TIM_ICInit(TIM2, &TIM_ICInitStructure);
   
   TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;//
TIM_ICInit(TIM2, &TIM_ICInitStructure);

// Clear all pending interrupts
TIM_ClearFlag(TIM2, TIM_FLAG_Update);
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

//Reset counter
TIM2->CNT = 0;

TIM_Cmd(TIM2, ENABLE);
}

wambob 发表于 2015-2-2 12:38:07

学习下,谢谢分享

andrewlawww 发表于 2015-2-2 13:38:46

学习学习

sacq12 发表于 2015-2-2 17:58:00

路过留下痕迹:)

YUWY 发表于 2016-8-11 09:32:14

030C8可以不？我的没有反应？？？

YUWY 发表于 2016-8-11 09:32:59

103的例子很多，不要再发了
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