player/Project/Src/Drive/Source/tim.c

#include "base.h"
#include "timer.h"





static TIMER_UserStruct g_timer[9]={0};










/*
@<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ͨ<EFBFBD>ö<EFBFBD>ʱ<EFBFBD><EFBFBD>
@TIM2\TIM3\TIM4\TIM5\TIM6\TIM7\TIM12\TIM13\TIM14
*/
int TIMER_InitNormal (TIMER_InitStruct *init)
{
	TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
	NVIC_InitTypeDef NVIC_InitStructure;
	u16 arr;u16 psc;
	if (init==0) return -1;
	if (init->Cycle>60000)//<2F><>ʱʱ<CAB1><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>60<36><30><EFBFBD><EFBFBD>
	{
		//psc=84*500-1;			//ÿ100us<75><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
		psc=90*100-1;
		arr=init->Cycle/100-1;
	}
	else 
	{
		//u16 t=60000/(init->Cycle*84)+1;
		//psc=84/t-1;
		u16 t=60000/(init->Cycle*90)+1;
		psc=90/t-1;
		arr=t*init->Cycle-1;
	}
	
	u32 timer=(u32)(init->Tim-TIM2)/(TIM3-TIM2);
	if (init->UpdataCall)
	{
		g_timer[timer].UpdataCall=init->UpdataCall;
		g_timer[timer].Inited=1;
	}
	
	RCC_APB1PeriphClockCmd(1<<timer,ENABLE); 
	
  TIM_TimeBaseInitStructure.TIM_Period = arr; 	//<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
	TIM_TimeBaseInitStructure.TIM_Prescaler=psc;  //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ƶ
	TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up; //<2F><><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD>ģʽ
	TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1; 
	
	TIM_TimeBaseInit(init->Tim,&TIM_TimeBaseInitStructure);//<2F><>ʼ<EFBFBD><CABC>TIM
	
	TIM_ITConfig(init->Tim,TIM_IT_Update,ENABLE); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	TIM_Cmd(init->Tim,ENABLE); //ʹ<>ܶ<EFBFBD>ʱ<EFBFBD><CAB1>3
	
	u8 irq_num=0;
	if (init->Tim==TIM2)
	{
		irq_num=TIM2_IRQn;
	}
	else if (init->Tim==TIM3)
	{
		irq_num=TIM3_IRQn;
	}
	else if (init->Tim==TIM4)
	{
		irq_num=TIM4_IRQn;
	}
	else if (init->Tim==TIM5)
	{
		irq_num=TIM5_IRQn;
	}
	else if (init->Tim==TIM6)
	{
		//irq_num=TIM6_IRQn;
	}
	else if (init->Tim==TIM7)
	{
		irq_num=TIM7_IRQn;
	}
	else if (init->Tim==TIM12)
	{
		//irq_num=TIM12_IRQn;
	}
	else if (init->Tim==TIM13)
	{
		//irq_num=TIM13_IRQn;
	}
	else if (init->Tim==TIM14)
	{
		//irq_num=TIM14_IRQn;
	}
	
	
	
	NVIC_InitStructure.NVIC_IRQChannel=irq_num; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD>ж<EFBFBD>
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01; //<2F><>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>1
	NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x03; //<2F><><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3
	NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
	NVIC_Init(&NVIC_InitStructure);
	return 0;
}




void TIMER_DeInit (TIM_TypeDef* TIMx)
{
	TIM_DeInit (TIMx);
	u32 timer=(u32)(TIMx-TIM2)/(TIM3-TIM2);
	
	RCC_APB1PeriphClockCmd(1<<timer,DISABLE); 
	g_timer[timer].UpdataCall=0;
	g_timer[timer].Inited=0;
}







void TIM2_IRQHandler (void)
{
	const TIM_TypeDef *timer=TIM2;
	const u8 timer_num=0;
	if(TIM_GetITStatus((TIM_TypeDef *)timer,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	{
		if (g_timer[timer_num].Inited==1)
		{
			g_timer[timer_num].UpdataCall();
		}
		TIM_ClearITPendingBit((TIM_TypeDef *)timer,TIM_IT_Update);  //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
	}
	
}
void TIM3_IRQHandler (void)
{
	const TIM_TypeDef *timer=TIM3;
	const u8 timer_num=1;
	if(TIM_GetITStatus((TIM_TypeDef *)timer,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	{
		if (g_timer[timer_num].Inited==1)
		{
			g_timer[timer_num].UpdataCall();
		}
		TIM_ClearITPendingBit((TIM_TypeDef *)timer,TIM_IT_Update);  //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
	}
}
void TIM4_IRQHandler (void)
{
	const TIM_TypeDef *timer=TIM4;
	const u8 timer_num=2;
	if(TIM_GetITStatus((TIM_TypeDef *)timer,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	{
		if (g_timer[timer_num].Inited==1)
		{
			g_timer[timer_num].UpdataCall();
		}
		TIM_ClearITPendingBit((TIM_TypeDef *)timer,TIM_IT_Update);  //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
	}
}
void TIM5_IRQHandler (void)
{
	const TIM_TypeDef *timer=TIM5;
	const u8 timer_num=3;
	if(TIM_GetITStatus((TIM_TypeDef *)timer,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	{
		if (g_timer[timer_num].Inited==1)
		{
			g_timer[timer_num].UpdataCall();
		}
		TIM_ClearITPendingBit((TIM_TypeDef *)timer,TIM_IT_Update);  //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
	}
}
void TIM7_IRQHandler (void)
{
	const TIM_TypeDef *timer=TIM7;
	const u8 timer_num=5;
	if(TIM_GetITStatus((TIM_TypeDef *)timer,TIM_IT_Update)==SET) //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
	{
		if (g_timer[timer_num].Inited==1)
		{
			g_timer[timer_num].UpdataCall();
		}
		TIM_ClearITPendingBit((TIM_TypeDef *)timer,TIM_IT_Update);  //<2F><><EFBFBD><EFBFBD><EFBFBD>жϱ<D0B6>־λ
	}
}