time.c

PIC串口程序 可以帮助你编写串口程序 里面还有我自己做的协议 很方便

 /*
**------------------------------------------------------------------------------------------------------
** Modified by:			HuangYong
** Modified date:		2008.4.23
** Version:				2.0
** Descriptions:		modified for aim-operator
**
********************************************************************************************************/


#include "..\includes\includes.h"



TYPE_TIME timeSystem;


	

//指令延时程序
void DelayNms(uint16 t)
{	uint16 i;
	for (;t>0;t--)
		for (i=0;i<500;i++);
}

INT32U loadSystemTime(INT8U type)
{  
  	INT32U time;
	switch (type)
	{	case TYPE_TIME_MS: break;
		case TYPE_TIME_S: break;
		case TYPE_TIME_M: break;
		case TYPE_TIME_H: break;
		case TYPE_TIME_DAY: break;
		case TYPE_TIME_DHMS:
			time=timeSystem.ms;break;
		default: time=0;
	}
	return (time);	
}



void refreshSystemTime(void)
{/*
	if (timeSystem.ms>=999)
	{	timeSystem.ms=0;
		if (timeSystem.s>=59)
		{	timeSystem.s=0;
			if (timeSystem.m>=59)
			{	timeSystem.m=0;
				if (timeSystem.h>=23)
				{	timeSystem.h=0;
					timeSystem.day+=1;
				}	
				else timeSystem.h+=1;	
			}	
			else timeSystem.m+=1;
		}
		else timeSystem.s+=1;				
	}	
	else */
	timeSystem.ms+=1;
}


void systimeInit(void)
{
	timeSystem.ms=0;
	//timeSystem.s=0;
	//timeSystem.m=0;
	//timeSystem.h=0;
	//timeSystem.day=0;
}


#define _TMR1_VALUE		(65536-1000)

void timer1Init(void)
{
	T1CON=0x00;
    TMR1L =_TMR1_VALUE;
	TMR1H =_TMR1_VALUE>>8;
	TMR1IF=0;
	TMR1IE=1;
	PEIE=1;
}				


/*
多任务分时调度
1，键盘扫描任务每隔10ms运行
*/

void OS_SCHEDULE(void)
{  INT32U time;
	time=loadSystemTime(TYPE_TIME_DHMS);
	if (time>=keyCtlBlock.nTime)
	{	keyCtlBlock.nTime=time+10;			
		userKeyScan();
	}
}


/*
*********************************************************************************************************
** 函数名称 ：IRQ_Timer0()
** 函数功能 ：定时器0中断服务程序，取反LED9控制口。
** 入口参数 ：无
** 出口参数 ：无
*********************************************************************************************************
*/

void interrupt irqTimer1(void)
{     	
	if (TMR1IE&TMR1IF)
	{	TMR1IF=0;
		timer1Stop();
		TMR1L=_TMR1_VALUE;
		TMR1H=_TMR1_VALUE>>8;
		timer1Start();
		refreshSystemTime();
	}
    if(RCIE&RCIF)
	{      
      RCIE=0;
      IRQ_UART1();
      RCIF=0;
      RCIE=1;
    }
}