tecclock.c

来自「采用C语言编程」· C语言 代码 · 共 207 行

/*1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E
 *7-14 DB0-DB7 15-BLA 16-BLK
 */
#define uchar unsigned char
#define uint   unsigned int
#include "def.h"
#include <reg52.h>
#include <stdio.h>
#include <math.h>
#include <intrins.h>
#include <public.h>
//1602
extern void DelayMs(unsigned char ms);
extern void InitLcd();       
extern void ShowString (unsigned char line,char *ptr);
extern uchar count,num,minute,second,temp;

//18B20
extern unsigned char ReadTemperature(void);

//1302
extern void Write_Ds1302_byte(unsigned char temp); 
extern void Write_Ds1302( unsigned char address,unsigned char dat );
extern unsigned char Read_Ds1302 ( unsigned char address );
extern void Read_RTC(void);//read RTC 
extern void Set_RTC(void);//set RTC
extern void chang(); 
/*****************************************************************************/
//主函数变量定义
uchar cTaskNo = 0;
uchar cScanSlotNo = 0;
uchar pCurrentSlot = 0; 

//time0初始化
/*****************************************************************************/
extern uchar cTimeFlag;
extern void TimerInit();

//tecclockzhicuankou
/*****************************************************************************/
extern uchar code menu[];
extern void uart0int();
extern void uartsendstr(uchar *);
extern void putchar1(uchar );

/**********************************************************************/ 


//主函数的多任务处理
uchar code tTaskTable[MAX_SLOTNO][MAX_TASKNO] = {
1,0,0,0,0,
0,1,1,0,0,
1,0,0,1,0,
0,1,0,0,0,
1,0,1,0,0,
0,1,0,1,0,
1,0,0,0,0,
0,1,1,0,0,
1,0,0,1,0,
0,1,0,0,0	
};

uchar task_scan()
{
	if(cTimeFlag == FALSE)
	{
		return FALSE;
	}
	else
	{
		cTimeFlag = FALSE;
        cScanSlotNo ++;
		if(cScanSlotNo >= MAX_SLOTNO)
		{
			cScanSlotNo = 0;
		}
		pCurrentSlot = cScanSlotNo;
		return (TURE);
	}
}

//读命令
void task1()				
{
	uchar tempstr[12];
	if(gCommandDeal == TURE)
	{
		if(gUart0Buf[0] == 'a')
		{
			tempstr[0] = 'y';
			tempstr[1] = 'y';
			tempstr[2] = '\n';
			tempstr[3] = 0;
			uartsendstr(tempstr);

			gUart0RecCount=0;
			gCommandDeal=FALSE;

			return;
		}
		if(gUart0Buf[0] == 't')
		{
			gTimeDisplay = TURE;

			gUart0RecCount = 0;
			gCommandDeal = FALSE;

			//return;
		}
		gUart0RecCount = 0;
		gCommandDeal = FALSE;		
	}
}

//在板子的LCD上显示时间
void task2()
{
	Read_RTC();
	chang();
	ShowString(0,l_tmpdate1);
}

//在板子上显示温度
void task3()
{
    uchar temp1[] = {0x00,0x00,0x43,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20};
	temp = ReadTemperature();
	temp1[0] = temp/10 + 0x30;
	temp1[1] = temp%10 + 0x30;
	ShowString(1,temp1);		
}

//在超级终端中显示时间
void task4()
{	
	uchar i;
	if(gTimeDisplay == TURE)
	{
			SBUF = 0x0d;
			while(!TI);
			TI = 0;

		for(i = 0;i < 16;i ++)
		{
			SBUF = l_tmpdate1[i];
			while(!TI);
			TI = 0;
		}

	}
}

//用于扩展
void task5()
{

}

void main(void)
{
	void (*FunctionPionter[MAX_TASKNO])(void); 		 //指针函数数组
	uchar i;
	InitLcd();       
	DelayMs(15);	//延时15.6ms
								 
	sprintf(Test1,"t");//the first line
	ShowString(0,Test1);
	
	sprintf(TimeNum,"m");//the first line
	ShowString(1,TimeNum);

	Set_RTC();    //设置时钟

	for(num=100;num>0;num--)
	{
		for(minute=20;minute>0;minute--)
		{
			for(count=248;count>0;count--)
			{;}
		}
	}

	TimerInit();
	uart0int();
	uartsendstr(menu);

	FunctionPionter[0] = task1; 
	FunctionPionter[1] = task2; 
	FunctionPionter[2] = task3; 
	FunctionPionter[3] = task4; 
	FunctionPionter[4] = task5;
    while(1)
	{
		if(task_scan() == TURE)
		{
			for(i = 0;i < MAX_TASKNO;i ++)
			{
				if(tTaskTable[pCurrentSlot][i] == 1)
				{
					(*FunctionPionter[i])();
				}
			}
		}
	}
}