基于51单片机的微波炉控制C源程序.doc

#include #define GET_KEY P1#define GET_LED P0sbit LSA=P22;sbit LSB=P23;sbit LSC=P24;unsigned char code DIG_CODE=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71; /“-”的段码是0x40unsigned char flag=0,power=0; /flag 数字键加1; power表示电源键是否按下unsigned char Keyvalue,Keystate;unsigned char fenh,fenl,miaoh,miaol,huo;void delay(unsigned int u) unsigned char i; for(;u0;u-) for(i=50;i0;i-);void Key_Scan() GET_KEY=0x0f; if(GET_KEY!=0x0f) delay(15); if(GET_KEY!=0x0f) Keystate=1; /有键按下 GET_KEY=0x0f; /测试列 switch(GET_KEY) case(0X07):Keyvalue=0;break;case(0X0b):Keyvalue=4;break;case(0X0d): Keyvalue=8;break;case(0X0e):Keyvalue=12;break; GET_KEY=0xf0; /测试行 switch(GET_KEY) case(0X70):Keyvalue=Keyvalue+3;break;case(0Xb0):Keyvalue=Keyvalue+2;break;case(0Xd0): Keyvalue=Keyvalue+1;break;case(0Xe0):Keyvalue=Keyvalue;break; while(GET_KEY!=0xf0); /松手检测 if(Keyvalue=0x0f) power+; else flag+; void init_t0()TH0=(65536-20000)/256; TL0=(65536-20000)%256; /定时20msEA=1;ET0=1;TMOD=0x01;void display1() /LED动态显示函数 unsigned char i; for(i=0;i8;i+) switch(i) case 0: LSC=0;LSB=0;LSA=0;GET_LED=DIG_CODEfenh;break; case 1: LSC=0;LSB=0;LSA=1;GET_LED=DIG_CODEfenl;break; case 2: LSC=0;LSB=1;LSA=0;GET_LED=0x40;break; case 3: LSC=0;LSB=1;LSA=1;GET_LED=0x40;break; case 4: LSC=1;LSB=0;LSA=0;GET_LED=DIG_CODEmiaoh;break; case 5: LSC=1;LSB=0;LSA=1;GET_LED=DIG_CODEmiaol;break; case 6: LSC=1;LSB=1;LSA=0;GET_LED=DIG_CODE1;break; case 7: LSC=1;LSB=1;LSA=1;GET_LED=DIG_CODEhuo;break; delay(1);GET_LED=0x00; void display2() unsigned char i; for(i=0;i=0&temp=0&temp=0&temp=0&temp=0x0a&temp=0x0c) huo=temp; TR0=1; flag=0; / 先输入定时时间，然后按火候键开始定时 else flag-; / 开始显示 if(power=1) display1(); if(power=0) display2();/电源关闭，灯灭，重新开始输入、定时 void timer0() interrupt 1 static unsigned char count=0; TH0=(65536-20000)/256; TL0=(65536-20000)%256; count+;if(count=50) /1ms定时到 miaol-; count=0; if(miaol=0xff) miaoh-; miaol=9; if(miaoh=0xff) fenl-; miaoh=5;