中级会员
 
- 积分
- 381
- 金钱
- 381
- 注册时间
- 2014-10-9
- 在线时间
- 6 小时
|

楼主 |
发表于 2014-10-27 15:56:30
|
显示全部楼层
void TIM3_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_ICInitTypeDef TIM_ICInitStructure;
TIM_TimeBaseInitTypeDef TIM_BaseInitStructure;
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_TIM3);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_TIM3);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// TIM_DeInit(TIM3);
TIM_BaseInitStructure.TIM_Period = 600;
TIM_BaseInitStructure.TIM_Prescaler =0;
TIM_BaseInitStructure.TIM_ClockDivision = 0;
TIM_BaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_BaseInitStructure);
TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Falling, TIM_ICPolarity_Falling);
TIM_ICStructInit(&TIM_ICInitStructure);
TIM_ICInitStructure.TIM_ICFilter=6;
TIM_ICInit(TIM3,&TIM_ICInitStructure);
TIM_ClearFlag(TIM3, TIM_FLAG_Update);
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
// TIM_SetCounter(TIM3,0);
TIM_Cmd(TIM3, ENABLE);
if(TIM_GetITStatus(TIM3, TIM_IT_Update) !=RESET)
{
TIM_ClearFlag(TIM3, TIM_FLAG_Update);
m=m+1;
// USART_OUT(USART1,"转的圈数%d\r\n",m);
// if(TIM_GetCounter(TIM3)>=100);
// {
// USART_OUT(USART1,"正转\r\n");
// }
// if(TIM_GetCounter(TIM3)<100);
// {
// USART_OUT(USART1,"反转\r\n");
// }
USART_OUT(USART1,"%d\r\n",TIM_GetCounter(TIM3));
} |
|