#include "sys.h"
#include "led.h"
#include "delay.h"
#include "TIM1.h"
int main(void)
{
NVIC_Configuration();
LED_Init();
delay_init();
TIM1_Init();
while(1)
{
}
}
void TIM1_UP_IRQHandler(void)
{
TIM_ClearFlag(TIM1,TIM_FLAG_Update);
LED=~LED;
}
#include "TIM1.h"
void TIM1_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;
//开启TIM1的使能定时器
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
TIM_TimeBaseStructure.TIM_Period = (10000 - 1);//ARR
TIM_TimeBaseStructure.TIM_Prescaler = (7200 - 1);//PSC
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//选择时钟不分割
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM1, & TIM_TimeBaseStructure);
//使能定时器1的中断
TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//使能定时器1
TIM_Cmd(TIM1,ENABLE);
}
#include "sys.h"
#include "led.h"
void LED_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//初始化时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
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