关于正交编码器接口问题：
关于32单片机正交编码器接口问题：我的程序编译没有错误，可是为什么我的TIM3计数读不出来是怎么回事，求帮助。 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_InitStructure.GPIO_Pin = 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 = 0xffff;;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
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;//比较滤波器
TIM_ICInit(TIM3, &TIM_ICInitStructure);
// Clear all pending interrupts
TIM_ClearFlag(TIM3, TIM_FLAG_Update);//清标志位
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//使能中断
//Reset counter
TIM3->CNT = 10;
TIM_Cmd(TIM3, ENABLE);
} 烧完程序后读不出TIM3->CNT的值，显示0000，让编码器工作TIM3->CNT仍没反应，希望各位大师帮助，谢谢了 梦翔青春 发表于 2015-8-1 13:46
烧完程序后读不出TIM3->CNT的值，显示0000，让编码器工作TIM3->CNT仍没反应，希望各位大师帮助，谢谢了 ...
楼主大哥，现在你那计数的问题解决了吗？
页:
[1]