最佳答案

匯編的我不知道,C語言的倒是很多的，建議你去看下郭天祥的《十天學會單片機》視頻教程的第十講，里面講的非常的清楚的，以下是哪段教程的程序，比你如果只是不知道方法的話，可以去看下，肯定能得到解決的思路的............ #include #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; sbit rs=P3^5; sbit lcden=P3^4; sbit s1=P3^0; sbit s2=P3^1; sbit s3=P3^2; sbit rd=P3^7; uchar count,s1num; char miao,shi,fen; uchar code table[]=" 2007-7-30 MON"; uchar code table1[]=" 00:00:00"; void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void write_com(uchar com) { rs=0; lcden=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_date(uchar date) { rs=1; lcden=0; P0=date; delay(5); lcden=1; delay(5); lcden=0; } void init() { uchar num; dula=0; wela=0; lcden=0; // fen=59; // miao=53; // shi=23; write_com(0x38); write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); for(num=0;num<15;num++) { write_date(table[num]); delay(5); } write_com(0x80+0x40); for(num=0;num<12;num++) { write_date(table1[num]); delay(5); } TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1; } void write_sfm(uchar add,uchar date) { uchar shi,ge; shi=date/10; ge=date%10; write_com(0x80+0x40+add); write_date(0x30+shi); write_date(0x30+ge); } void keyscan() { rd=0; if(s1==0) { delay(5); if(s1==0) { s1num++; while(!s1) if(s1num==1) { TR0=0; write_com(0x80+0x40+10); write_com(0x0f); } } if(s1num==2) { write_com(0x80+0x40+7); } if(s1num==3) { write_com(0x80+0x40+4); } if(s1num==4) { s1num=0; write_com(0x0c); TR0=1; } } if(s1num!=0) { if(s2==0) { delay(5); if(s2==0) { while(!s2); if(s1num==1) { miao++; if(miao==60) miao=0; write_sfm(10,miao); write_com(0x80+0x40+10); } if(s1num==2) { fen++; if(fen==60) fen=0; write_sfm(7,fen); write_com(0x80+0x40+7); } if(s1num==3) { shi++; if(shi==24) shi=0; write_sfm(4,shi); write_com(0x80+0x40+4); } } } if(s3==0) { delay(5); if(s3==0) { while(!s3); if(s1num==1) { /* if(miao==0) { miao=59; write_sfm(10,miao); write_com(0x80+0x40+10); }*/ miao--; if(miao==-1) miao=59; write_sfm(10,miao); write_com(0x80+0x40+10); } if(s1num==2) { fen--; if(fen==-1) fen=59; write_sfm(7,fen); write_com(0x80+0x40+7); } if(s1num==3) { shi--; if(shi==-1) shi=23; write_sfm(4,shi); write_com(0x80+0x40+4); } } } } } void main() { init(); while(1) { keyscan(); } // while(1); } void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; count++; if(count==18) { count=0; miao++; if(miao==60) { miao=0; fen++; if(fen==60) { fen=0; shi++; if(shi==24) { shi=0; } write_sfm(4,shi); } write_sfm(7,fen); } write_sfm(10,miao); } }

回答者：在路上的陸2016-05-30 00:00