stm32定时器2输出10KHZ波形

/* Enable the USART2 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

/* Enable the USART3 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the TIMER3 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the TIMER3 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

//72M timer2
//ÖжÏʱ¼äº¨720*10/72000000=0.1Ms=10K
void Timer2_config() //ucosiiʱÖÓ
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

TIM_TimeBaseStructure.TIM_Prescaler = 360-1; //36M/360=100K HZ
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //ÏòÉϼÆÊý
TIM_TimeBaseStructure.TIM_Period = 10; // ; //×°ÔØÖµÑÔñ 10K
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
//TIM_TimeBaseStructure.TIM_RepetitionCounter = 4;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

TIM_ITConfig(TIM2,TIM_IT_Update|TIM_IT_Trigger,ENABLE);
TIM_Cmd(TIM2, ENABLE);
}

void TIM2_IRQHandler(void)
{

if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //¼ì²éÖ¸¶¨µÄTIMÖжϷÉúÓë·ñ:TIM ÖжÏÔ´
{

if(Ledflg==0)
{
GPIO_SetBits(GPIOC, GPIO_Pin_6);
GPIO_SetBits(GPIOC, GPIO_Pin_7);
Ledflg=1;
}
else
{
GPIO_ResetBits(GPIOC, GPIO_Pin_6);
GPIO_ResetBits(GPIOC, GPIO_Pin_7);
Ledflg=0;
}
Ledcnt=0;

}
TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //Çå³ýTIMxµÄÖжϴý´¦Àíλ:TIM ÖжÏÔ´

}