设置Timer3 中断
void TIM3_INT_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* TIM3 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
/* TIM3 ÖжÏǶÌ×Éè¼Æ*/
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
设置Timer3 模式
void TIM3_OUT_Config(void)
{
TIM_TimeBaseInitTypeDef TIM3_TimeBaseStructure;
TIM_OCInitTypeDef TIM3_OCInitStructure;
/* ¼ÆËãÔ¤·ÖƵֵ */
TM3_PrescalerValue = (uint16_t) (SystemCoreClock / TM3_PRESCALER) - 1;
/* Time ¶¨Ê±Æ÷»ù´¡ÉèÖà */
TIM3_TimeBaseStructure.TIM_Period = 65535;
TIM3_TimeBaseStructure.TIM_Prescaler = 0;
TIM3_TimeBaseStructure.TIM_ClockDivision = 0;
TIM3_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM3_TimeBaseStructure);
/* Ô¤·ÖƵÆ÷ÅäÖà */
TIM_PrescalerConfig(TIM3, TM3_PrescalerValue, TIM_PSCReloadMode_Immediate);
/* Êä³ö±È½ÏʱÐòģʽÅäÖÃÉèÖà */
TIM3_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
TIM3_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
/* Êä³ö±È½ÏʱÐòģʽÅäÖÃ: ƵµÀ3*/
TIM3_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM3_OCInitStructure.TIM_Pulse = TM3_CCR1_Val; //3000
TIM_OC3Init(TIM3, &TIM3_OCInitStructure);
TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Disable);
/* TIM ÖжÏʹÄÜ */
TIM_ITConfig(TIM3, TIM_IT_CC3 , ENABLE);
/* TIM3 ʹÄÜ */
TIM_Cmd(TIM3, ENABLE);
}
3. 中断子程序
void TIM3_IRQHandler(void)
{
if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET)
{
TIM_ClearITPendingBit(TIM3, TIM_IT_CC3);
/* LED3 toggling with frequency = 219.7 Hz */
// LED1_Toggle();
// capture3 = TIM_GetCapture3(TIM3);
// TIM_SetCompare3(TIM3, capture3 + TM3_CCR1_Val);
OutToggle();
if(TimeRxFlag)
{
TimeInterval++;
if(TimeInterval》4)
{
RxFrameEndFlag =1;
}
}
if(KeyCtrl.bDebunceTime != 0)
{
KeyCtrl.bDebunceTime--;
}
// SevenSegShow(DispBuffer);
capture3 = TIM_GetCapture3(TIM3);
TIM_SetCompare3(TIM3, capture3 + TM3_CCR1_Val);
}
}
设置Timer3 中断
void TIM3_INT_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* TIM3 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
/* TIM3 ÖжÏǶÌ×Éè¼Æ*/
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
设置Timer3 模式
void TIM3_OUT_Config(void)
{
TIM_TimeBaseInitTypeDef TIM3_TimeBaseStructure;
TIM_OCInitTypeDef TIM3_OCInitStructure;
/* ¼ÆËãÔ¤·ÖƵֵ */
TM3_PrescalerValue = (uint16_t) (SystemCoreClock / TM3_PRESCALER) - 1;
/* Time ¶¨Ê±Æ÷»ù´¡ÉèÖà */
TIM3_TimeBaseStructure.TIM_Period = 65535;
TIM3_TimeBaseStructure.TIM_Prescaler = 0;
TIM3_TimeBaseStructure.TIM_ClockDivision = 0;
TIM3_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM3_TimeBaseStructure);
/* Ô¤·ÖƵÆ÷ÅäÖà */
TIM_PrescalerConfig(TIM3, TM3_PrescalerValue, TIM_PSCReloadMode_Immediate);
/* Êä³ö±È½ÏʱÐòģʽÅäÖÃÉèÖà */
TIM3_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
TIM3_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
/* Êä³ö±È½ÏʱÐòģʽÅäÖÃ: ƵµÀ3*/
TIM3_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM3_OCInitStructure.TIM_Pulse = TM3_CCR1_Val; //3000
TIM_OC3Init(TIM3, &TIM3_OCInitStructure);
TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Disable);
/* TIM ÖжÏʹÄÜ */
TIM_ITConfig(TIM3, TIM_IT_CC3 , ENABLE);
/* TIM3 ʹÄÜ */
TIM_Cmd(TIM3, ENABLE);
}
3. 中断子程序
void TIM3_IRQHandler(void)
{
if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET)
{
TIM_ClearITPendingBit(TIM3, TIM_IT_CC3);
/* LED3 toggling with frequency = 219.7 Hz */
// LED1_Toggle();
// capture3 = TIM_GetCapture3(TIM3);
// TIM_SetCompare3(TIM3, capture3 + TM3_CCR1_Val);
OutToggle();
if(TimeRxFlag)
{
TimeInterval++;
if(TimeInterval》4)
{
RxFrameEndFlag =1;
}
}
if(KeyCtrl.bDebunceTime != 0)
{
KeyCtrl.bDebunceTime--;
}
// SevenSegShow(DispBuffer);
capture3 = TIM_GetCapture3(TIM3);
TIM_SetCompare3(TIM3, capture3 + TM3_CCR1_Val);
}
}
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