bsp_timer.c
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#include "includes.h"
#include "sys.h"
void TIM3_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE); ///使能TIM3时钟
TIM_TimeBaseInitStructure.TIM_Period = arr; //自动重装载值
TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //定时器分频
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);//初始化TIM3
TIM_ARRPreloadConfig(TIM3, ENABLE);
TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE); //允许定时器3更新中断
NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn; //定时器3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=14; //抢占优先级1
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM3,ENABLE); //使能定时器3
TIM_SetCounter(TIM3,0);//清空计时器
}
//void TIM3_IRQHandler(void) //TIM3_IRQHandler
//{
// CPU_SR_ALLOC();
// CPU_CRITICAL_ENTER();
// OSIntEnter();
// CPU_CRITICAL_EXIT();
// if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
// {
// TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
// }
// OSIntExit();
//}
void TIM4_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4,ENABLE); ///使能TIM3时钟
TIM_TimeBaseInitStructure.TIM_Period = arr; //自动重装载值
TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //定时器分频
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM4,&TIM_TimeBaseInitStructure);//初始化TIM3
TIM_ARRPreloadConfig(TIM4, ENABLE);
TIM_ITConfig(TIM4,TIM_IT_Update,ENABLE); //允许定时器3更新中断
NVIC_InitStructure.NVIC_IRQChannel=TIM4_IRQn; //定时器3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=14; //抢占优先级1
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM4,ENABLE); //使能定时器3
TIM_SetCounter(TIM4,0);//清空计时器
}
void TIM4_IRQHandler(void) //TIM3_IRQHandler
{
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
OSIntEnter();
CPU_CRITICAL_EXIT();
if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
{
TIM_ClearITPendingBit(TIM4, TIM_IT_Update);
}
OSIntExit();
}
void TIM7_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM7,ENABLE); ///使能TIM3时钟
TIM_TimeBaseInitStructure.TIM_Period = arr; //自动重装载值
TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //定时器分频
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM7,&TIM_TimeBaseInitStructure);//初始化TIM3
TIM_ARRPreloadConfig(TIM7, ENABLE);
TIM_ITConfig(TIM7,TIM_IT_Update,ENABLE); //允许定时器3更新中断
NVIC_InitStructure.NVIC_IRQChannel=TIM7_IRQn; //定时器3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=14; //抢占优先级1
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_Cmd(TIM7,ENABLE); //使能定时器3
TIM_SetCounter(TIM7,0);//清空计时器
}
void TIM7_IRQHandler(void) //TIM3_IRQHandler
{
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
OSIntEnter();
CPU_CRITICAL_EXIT();
if (TIM_GetITStatus(TIM7, TIM_IT_Update) != RESET)
{
TIM_ClearITPendingBit(TIM7, TIM_IT_Update);
}
OSIntExit();
}
void TIM1_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1,ENABLE);
TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInitStructure.TIM_Period = 0x20d0;
TIM_TimeBaseInitStructure.TIM_Prescaler = 0x2710;
TIM_TimeBaseInitStructure.TIM_RepetitionCounter = 0x00;
NVIC_InitStructure.NVIC_IRQChannel=TIM1_UP_TIM10_IRQn; //定时器3中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x00; //抢占优先级1
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x00; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
TIM_TimeBaseInit(TIM1,&TIM_TimeBaseInitStructure);
TIM_ClearFlag(TIM1,TIM_FLAG_Update); //必须先清除配置时候产生的更新标志
TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE); //使能中断，中断事件为定时器工薪事件
TIM_Cmd(TIM1,ENABLE); //使能定时器
}
int32_t bsp_GetRunTime(void)
{
OS_ERR err;
return OSTimeGet(&err);
}