单片机液晶时钟及仿真图.doc

/*功能说明：液晶时钟接线说明：P0控制Data I/O ，P10控制时分秒调整，P11、P12控制时间增减，P26、P25、P27控制RS、RW、E作 者：合工大 LS*/#include #define uchar unsigned char#define uint unsigned intchar second,min=14,hour=13;uchar temp1,temp2,count,flag,i,j,move;uchar table1= I love you! ;uchar table2= 13:14:00 ;/sbit rs=P20;/sbit rw=P21;/sbit en=P22;sbit rs=P26;sbit rw=P25;sbit en=P27;sbit mod=P10;sbit inc=P11;sbit dec=P12;/-延时函数-/ void delay(uint z)uint x,y;for(x=z;x0;x-) for(y=110;y0;y-); /-行控制-/void write_com(uchar line)rs=0;rw=0;en=1;/P3=line;P0=line;delay(1);en=0;/-数据控制-/void write_date(uchar Date)rs=1;rw=0;en=1;/P3=Date;P0=Date;delay(1);en=0;/-/void display(uchar addr, char tempx)temp1=tempx/10;write_com(0xc0+addr);write_date(0x30+temp1); /0x30 0的字符码temp2=tempx%10;write_com(0xc0+addr+1);write_date(0x30+temp2);/-初始化-/void initial() TMOD=0x01; /16位定时模式 TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1;/开CPU中断 ET0=1;/开定时器T0中断 TR0=1; /开定时器 write_com(0x38);/设置16*2显示，5*7点阵，8位数据接口/ write_com(0x0e);/开显示 write_com(0x0c);/显示开，关光标 write_com(0xc0); /第二行首址 for(j=0;j16;j+) write_date(table2j); void main() initial(); while(1) write_com(0x80+move); for(i=0;i16;i+) write_date(table1i); display(4,hour);display(7,min);display(10,second);if(move15) move+;else move=0;delay(500);/-中断-/void timer0() interrupt 1count+;if(count=20)count=0;second+;if(second=60)min+;second=0;if(min=60)hour+;min=0;if(hour=24)hour=0;min=0;second=0;TH0=(65536-50000)/256;TL0=(65536-50000)%256;if(flag=0)if(inc=0)delay(5);if(inc=0)hour+;if(hour=24)hour=0;while(inc=0);if(dec=0)delay(5);if(dec=0)hour-;if(hour0)hour=23;while(dec=0); if(flag=1)if(inc=0)delay(5);if(inc=0)min+;if(min=60)min=0;while(inc=0);if(dec=0)delay(5);if(dec=0)min-;if(min0)min=59; while(dec=0); if(flag=2) if(inc=0)delay(5);if(inc=0)second+;if(second=60)second=0; while(inc=0);if(dec=0)delay(5);if(dec=0)second-;if(se