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- 2015-5-12
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5金钱
void TIM1_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// TIM1 Configuration ---------------------------------------------------
RCC_APB2PeriphClockCmd(
RCC_APB2Periph_TIM1 |
RCC_APB2Periph_AFIO, ENABLE);
TIM1->BDTR|=1<<15;
// Time Base configuration
TIM_TimeBaseStructure.TIM_Period = 0xffff;
TIM_TimeBaseStructure.TIM_Prescaler = 35;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
// Channel 1, 2,3 and 4 Configuration in TIME mode
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
//TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = TIM1CCR1_Val; // 1
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
//TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
//TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; //Specifies the TIM Output Compare pin state during Idle state.
//TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; //Specifies the TIM Output Compare pin state during Idle state.
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = TIM1CCR2_Val;
TIM_OC2Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = TIM1CCR3_Val;
TIM_OC3Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = TIM1CCR4_Val;
TIM_OC4Init(TIM1, &TIM_OCInitStructure);
TIM_ARRPreloadConfig(TIM1, ENABLE);
// TIM1 enable counter
TIM_Cmd(TIM1, ENABLE);
// Clear TIM1 update pending flag
TIM_ClearFlag(TIM1, TIM_FLAG_Update);
// TIM IT enable
TIM_ITConfig(TIM1, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, ENABLE);
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x00);
//NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
/* Configure the  riority Group to 2 bits ?÷????*/
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
NVIC_InitStructure.NVIC_IRQChannel = WWDG_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn; //TIM1_CC_IRQn TIM1_UP_IRQn
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
u16 capture;
void TIM1_CC_IRQHandler(void)
{
if (TIM_GetITStatus(TIM1, TIM_IT_CC1) != RESET)
{
TIM_ClearITPendingBit(TIM1, TIM_IT_CC1);
Run_MotorX();
capture = TIM_GetCapture1(TIM1);
TIM_SetCompare1(TIM1, capture + TIM1CCR1_Val);
}
else if (TIM_GetITStatus(TIM1, TIM_IT_CC2) != RESET)
{
TIM_ClearITPendingBit(TIM1, TIM_IT_CC2);
capture = TIM_GetCapture2(TIM1);
TIM_SetCompare2(TIM1, capture + TIM1CCR2_Val);
}
else if (TIM_GetITStatus(TIM1, TIM_IT_CC3) != RESET)
{
TIM_ClearITPendingBit(TIM1, TIM_IT_CC3);
//X-------------------------------------------------
capture = TIM_GetCapture3(TIM1);
TIM_SetCompare3(TIM1, capture + TIM1CCR3_Val);
}
else
{
TIM_ClearITPendingBit(TIM1, TIM_IT_CC4);
//Y-------------------------------------------------
capture = TIM_GetCapture4(TIM1);
TIM_SetCompare4(TIM1, capture + TIM1CCR4_Val);
}
}
本人写的代码不知哪里处理问题,高了好久都没有头绪,求各位大神指导
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