#ifndef _TIMER_H_
#define _TIMER_H_#include "stm32f10x.h"
#include "type.h"// LED定时器，按键定时器，重发定时器
#define LED_TIMER           TIM1
#define LED_TIMER_DIV       7200
#define LED_TIMER_PERIOD    2500#define PWM_TIMER           TIM2#define RESEND_TIMER        TIM3
#define RESEND_TIMER_DIV    7200  
#define RESEND_TIMER_PERIOD 2500#define KEY_TIMER           TIM4
#define KEY_TIMER_DIV       7200
#define KEY_TIMER_PERIOD    200void TimerNvicConfig(void);
void TimerConfig(TIM_TypeDef *timer, uint16_t div, uint16_t period);
void TimerEnable(TIM_TypeDef *timer);
void TimerDisable(TIM_TypeDef *timer);#endif /* _TIMER_H_ */#include "stm32f10x_tim.h"
#include "stm32f10x_rcc.h"
#include "timer.h"/*
*  三个定时器: 1 灯色   2 按键  3 重发
*/
void TimerNvicConfig(void)
{NVIC_InitTypeDef NVIC_StructInit;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);NVIC_StructInit.NVIC_IRQChannel = TIM1_UP_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 0;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM2_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 1;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM3_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 2;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);NVIC_StructInit.NVIC_IRQChannel = TIM4_IRQn;NVIC_StructInit.NVIC_IRQChannelCmd = ENABLE;NVIC_StructInit.NVIC_IRQChannelPreemptionPriority = 3;NVIC_StructInit.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_StructInit);
}void TimerConfig(TIM_TypeDef *timer, uint16_t div, uint16_t period)
{TIM_TimeBaseInitTypeDef TIM_StructInit;if(LED_TIMER == timer){RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);}else if(RESEND_TIMER == timer){RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);}else if(KEY_TIMER == timer){RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);}TIM_StructInit.TIM_Period = period;TIM_StructInit.TIM_Prescaler = div;TIM_StructInit.TIM_ClockDivision = TIM_CKD_DIV1; /* 数字滤波器采样频率 */TIM_StructInit.TIM_CounterMode = TIM_CounterMode_Up; /* 向上计数 */TIM_StructInit.TIM_RepetitionCounter = 0;TIM_TimeBaseInit(timer, &TIM_StructInit);TIM_ITConfig(timer, TIM_IT_Update, ENABLE); /* 允许中断 */TIM_ClearFlag(timer, TIM_FLAG_Update); /* 更新定时器会产生更新时间,清除标志位 */
}void TimerEnable(TIM_TypeDef *timer)
{TIM_Cmd(timer, ENABLE);
}void TimerDisable(TIM_TypeDef *timer)
{TIM_Cmd(timer, DISABLE);
}