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发表于 2014-5-11 21:57:48
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回复【2楼】小刺猬:
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 void Timer3_Config(void)
 {
 	TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
 	TIM_ICInitTypeDef TIM_ICInitStructure;
 	
 	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);			//启动Tim3时钟
 	TIM_DeInit(TIM3);												//重设为缺省值
 	
 	TIM_TimeBaseStructure.TIM_Prescaler = 0;     					//预分频
 	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;		//向上计数
 	TIM_TimeBaseStructure.TIM_Period = 0xFFFF;						//装载值
 	TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;			//设置了时钟分割
 	TIM_TimeBaseStructure.TIM_RepetitionCounter = 0x0;				//周期计数器值
 	TIM_TimeBaseInit(TIM3,&TIM_TimeBaseStructure);					//初始化TIMx的时间基数单位
 	
 	TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);  //TIM_ICPolarity_Rising上升沿捕获
 	
 	TIM_ICStructInit(&TIM_ICInitStructure);
 	TIM_ICInitStructure.TIM_ICFilter = ENCODE_FILTER;         //比较滤波器
 	TIM_ICInit(TIM3, &TIM_ICInitStructure);
 
 	TIM_Cmd(TIM3, ENABLE);
 	TIM3->CNT = 0;
 	TIM_GenerateEvent(TIM3,TIM_EventSource_Update);
 }
 
 void Timer4_Config(void)
 {
 	TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
 	TIM_ICInitTypeDef TIM_ICInitStructure;
 	
 	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);			//启动Tim3时钟
 	TIM_DeInit(TIM4);												//重设为缺省值
 	
 	TIM_TimeBaseStructure.TIM_Prescaler = 0;     					//预分频
 	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;		//向上计数
 	TIM_TimeBaseStructure.TIM_Period = 0xFFFF;						//装载值
 	TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;			//设置了时钟分割
 	TIM_TimeBaseStructure.TIM_RepetitionCounter = 0x0;				//周期计数器值
 	TIM_TimeBaseInit(TIM4,&TIM_TimeBaseStructure);					//初始化TIMx的时间基数单位
 	
 	TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);  //TIM_ICPolarity_Rising上升沿捕获
 	
 	TIM_ICStructInit(&TIM_ICInitStructure);
 	TIM_ICInitStructure.TIM_ICFilter = ENCODE_FILTER;         //比较滤波器
 	TIM_ICInit(TIM4, &TIM_ICInitStructure);
 
 	TIM_Cmd(TIM4, ENABLE);
 	TIM4->CNT = 0;
 	TIM_GenerateEvent(TIM4,TIM_EventSource_Update);
 } |   
 
 
 
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