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#include "reg52.h"
//#include "Delay.h"
#include "Display.h"
#include "Timer.h"
void main()
{
Timer0Init(); //中斷初始化
while(1)
{
Datapros();
TaskProcess();
KeyProcess();
}
}
Displsy.c模塊函數(shù)
#include "Display.h"
//#include "Delay.h"
#include "Timer.h"
unsigned char Bit_Selection[8]={0xfe,0Xfd,0Xfb,0Xf7,0Xef,0Xdf,0Xbf,0x7f}; //位選
unsigned char smgduan[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//段選0123456789
unsigned char hour = 20,min = 51,sec = 58; //定義變量
unsigned char DisplayData[8];
bit keyback = 1;//按鍵之前的狀態(tài)
bit keystay = 1; //按鍵現(xiàn)在的狀態(tài)
void DigDisplay()
{
static unsigned char i; //定義靜態(tài)變量
P0 = 0x00; //消影
P2 = Bit_Selection[i]; //位選
P0 = DisplayData[i]; //段選
i++;
if(i==8)
{
i = 0;
}
}
void Datapros()
{
DisplayData[0]=smgduan[hour/10];
DisplayData[1]=smgduan[hour%10];
DisplayData[2]=0x40;
DisplayData[3]=smgduan[min/10];
DisplayData[4]=smgduan[min%10];
DisplayData[5]=0x40;
DisplayData[6]=smgduan[sec/10];
DisplayData[7]=smgduan[sec%10];
}
void Clock_Chang()//時(shí)間自加函數(shù)
{
sec++; //每一秒鐘執(zhí)行一次
if(sec==60)
{
sec = 0;
min++;
if(min==60)
{
min = 0;
hour++;
if(hour==24)
hour = 0;
}
}
}
void KeyProcess()
{
static unsigned char keymin;
keymin=min;
if(keystay!=keyback)//判斷按鍵現(xiàn)在狀態(tài)與之前狀態(tài)是否有變化
{
if(keyback==0) //如果之前狀態(tài)是零，則說(shuō)明按鍵有觸發(fā)
{
keymin++;
if(keymin==60)
keymin=0;
}
}
min=keymin;
keyback = keystay; //按鍵狀態(tài)賦值
}
void Keyscan()//按鍵掃描，在中斷中處理
{
static unsigned char keydelay=0xff;
keydelay=(keydelay<<1)|k1; //通過(guò)Keydelay移位延時(shí),每2ms移動(dòng)一位
//keydelay=(keydelay<<1)|k2;
//keydelay=(keydelay<<1)|k3;
if(keydelay==0x00) //如果16ms后keydelay=0x00,則按鍵狀態(tài)置為0（按下）
{
keystay = 0;
}
if(keydelay==0xff)
{
keystay = 1;
}
}
void ClockProcess()//鬧鐘判斷函數(shù)
{
unsigned char nhour = 20,nmin = 52,nsec = 1; //定義變量
if((nsec==sec)&&(nmin==min)&&(nhour==hour))
{
beep=~beep;
D1 = 0;
}
if(sec==nsec+2)//兩秒鐘之后在發(fā)生變化
{
beep=~beep;
D1 = 1;
}
}
Timer.c模塊函數(shù)
#include "Timer.h"
#include "Display.h"
//#include "Delay.h"
typedef struct SUSPEND_VARIABLE
{
unsigned char Flag; // 程序運(yùn)行標(biāo)記：0-不運(yùn)行，1運(yùn)行
unsigned long Time; // 計(jì)時(shí)器
unsigned long ItvTime; // 任務(wù)運(yùn)行間隔時(shí)間
void (*Function)(void); // 要運(yùn)行的任務(wù)函
}VARIABLE;
VARIABLE TaskCount[] =
{
{0,5,5,DigDisplay},//顯示
{0,1000,1000,Clock_Chang},//時(shí)鐘秒自加
{0,1000,1000,ClockProcess},//鬧鐘
{0,2,2,Keyscan},//按鍵掃描
};//聲明
void Timer0Init()
{
TMOD = 0X01; //選擇為定時(shí)器0模式，工作方式1，僅用TR0打開(kāi)啟動(dòng)。
TH0 = 0Xfc; //給定時(shí)器賦初值，定時(shí)100us
TL0 = 0X18; //給定時(shí)器賦初值如何是FF，定時(shí)1us
ET0 = 1; //打開(kāi)定時(shí)器0中斷允許
EA = 1; //打開(kāi)總中斷
TR0 = 1; //打開(kāi)定時(shí)器
}
void Timer0() interrupt 1
{
unsigned char i;[align=left][color=#007000][backcolor=transparent][font=Tahoma,&][size=14px] [/size][/font][/backcolor][/color][/align][align=left][color=#007000][backcolor=transparent][font=Tahoma,&][size=14px]//#define COUNT 4 //中斷函數(shù)運(yùn)行函數(shù)數(shù)量 [/size][/font][/backcolor][/color][/align]
TH0 = 0Xfc; //給定時(shí)器賦初值，定時(shí)100us
TL0 = 0x18;
for(i = 0;i<COUNT;i++) //循環(huán)掃描，判斷哪一個(gè)任務(wù)定時(shí)時(shí)間已到
{
if(TaskCount[i].Time)
{
TaskCount[i].Time--; //如果定時(shí)時(shí)間已到則清零，標(biāo)記置一
if(TaskCount[i].Time==0)
{
TaskCount[i].Flag = 1;
TaskCount[i].Time = TaskCount[i].ItvTime; // 恢復(fù)計(jì)時(shí)器值，從新下一次
}
}
}
}
void TaskProcess() //處理函數(shù)
{
unsigned char i;
for (i=0; i<COUNT; i++) // 循環(huán)判斷那一個(gè)任務(wù)需要運(yùn)行，逐個(gè)任務(wù)時(shí)間處理
{
if (TaskCount[i].Flag) // 時(shí)間不為0
{
TaskCount[i].Function(); // 運(yùn)行任務(wù)
TaskCount[i].Flag = 0; // 標(biāo)志清0
}
}
}

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