测控技术与仪器毕业论文范文-测控技术与仪器就业论文

write_date('-'); delay(5); write_com(0x80+0x00+10); write_date('-'); delay(5); write_sfm(10,miao); write_sfm(7,fen); write_sfm(4,shi); write_ymd(11,day); write_ymd(8,month); write_ymd(5,year); TMOD=0x01;//设置定时器0工作模式1 TH0=(65536-46080)/256; TL0=(65536-46080)%6; EA=1; ET0=1; TR0=1; }

void keyscan()//按键扫描函数 { if(s1==0) { delay(5); if(s1==0)//确认功能键被按下 { s1num++;//功能键按下次数记录 while(!s1);//释放确认 if(s1num==1)//第一次被按下时 { TR0=0; //关闭定时器 write_com(0x80+0x40+11); write_com(0x0f); //光标开始闪烁 } if(s1num==2) { write_com(0x80+0x40+8); } if(s1num==3) { write_com(0x80+0x40+5); } if(s1num==4) { write_com(0x80+0x00+12); } if(s1num==5) {

write_com(0x80+0x00+9);

} if(s1num==6)//第6次按下光标闪烁定位到year位置 { write_com(0x80+0x00+6); } if(s1num==7)//第7次按下 { s1num=0;//记录按键数清零 write_com(0x0c);//取消光标闪烁 TR0=1; //启动定时器使时钟开始走 } } } if(s1num!=0)//只有功能键被按下后，增加和减小键才有效 { if(s2==0) { delay(5); if(s2==0)//增加键确认被按下 { while(!s2);//按键释放 if(s1num==1) { miao++; if(miao==60)// miao=0; write_sfm(10,miao);//每调节一次送液晶显示一下 write_com(0x80+0x40+11);//显示位置重新回到调节处 } if(s1num==2) { fen++; if(fen==60) fen=0; write_sfm(7,fen); write_com(0x80+0x40+8); } if(s1num==3)/ {

shi++; if(shi==24) shi=0; write_sfm(4,shi); write_com(0x80+0x40+5); } if(s1num==4) { day++; if(day==31) day=1; write_ymd(11,day); write_com(0x80+0x00+12); } if(s1num==5) { month++; if(month==13) month=1; write_ymd(8,month); write_com(0x80+0x00+9); } if(s1num==6) { year++; if(year==100) year=0; write_ymd(5,year); write_com(0x80+0x00+6); } } } if(s3==0) { delay(5); if(s3==0)//确认减小键被按下 { while(!s3);//按键释放 if(s1num==1) { miao--; if(miao==-1) miao=59; write_sfm(10,miao); write_com(0x80+0x40+11); }

if(s1num==2) { fen--; if(fen==-1) fen=59; write_sfm(7,fen); write_com(0x80+0x40+8); } if(s1num==3) { shi--; if(shi==-1) shi=23; write_sfm(4,shi); write_com(0x80+0x40+5); } if(s1num==4) { day--; if(day==0) day=31; write_ymd(11,day); write_com(0x80+0x00+12); } if(s1num==5) { month--; if(month==0) month=12; write_ymd(8,month);

write_com(0x80+0x00+9); } if(s1num==6) { year--; if(year==0) year=99; write_ymd(5,year);

write_com(0x80+0x00+6); } } } }

}

void main() { init();//初始化各数据 while(1) { keyscan();//检测按键是否被按下 } }

void timer0() interrupt 1 { TH0=(65536-46080)/256;//重装初值 TL0=(65536-46080)%6; count++; if(count==20) //20次50毫秒为1秒 { count=0; miao++; if(miao==60) { miao=0; fen++; if(fen==60) { fen=0; shi++; if(shi==24) {

} }

shi=0; day++; if(day==31) { day=1; month++; if(month==13) { month=1; year++; if(year==100) { year=0; } write_ymd(5,year); } write_ymd(8,month); } write_ymd(11,day); } write_sfm(4,shi); } write_sfm(7,fen); }

write_sfm(10,miao);