电子时钟+ds18b20温度计汇编设计

#include<reg52.h> #include<intrins.h> #define uint unsigned int #define uchar unsigned char #define cmd 0 #define dat 1 sbit rs=P2^7; sbit rw=P2^6; sbit e=P2^5; sbit sclk=P3^7; sbit sda=P3^2; sbit rst=P2^4; sbit dq= P3^5; sbit p20=P2^0; sbit p21=P2^1; sbit p22=P2^2; sbit p23=P2^3; uchar num1,aa,temp1,num2,temp2; uchar code table0[]={0xff,0xfe,0xfc,0xf8,0xf0,0xe0, 0xc0,0x80,0x00, 0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0x7e,0x3c,0x18 , 0x00,0x18,0x3c,0x7e,0xff,0xe7,0xdb,0xbd,0x7e,0x8f,0xf1,0x0f,0xf0}; uchar temp_value; //温度值 uchar TempBuffer[5],week_value[2]; uchar k,num,temp,miao,shi,fen,day,month,year,week; uchar code table[]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};//LCD1602显示码； uchar code table1[]={12,42,12,9,8,9,8};//09年5月8日23点59分55秒,设置初始值； uchar code table2[]={0x80,0x82,0x84,0x86,0x88,0x8c,0x8a};//秒、分、时、日、月、年地址 uchar code table3[]=" : : "; uchar code table4[]="20 - - "; void delay(uint z) { uint x,y; for (x=z;x>0;x--) for (y=110;y>0;y--); } void Delay1ms(unsigned int count) { unsigned int i,j; for(i=0;i<count;i++) for(j=0;j<120;j++); } /*在DS1302中读出数据后，将BCD码转换成十进制的函数；*/ bcd_hex(uchar g) { uchar j; j=g&0x0f; g>>=4; g&=0x0f; g*=10; j+=g; return(j); } /*lcd写操作;*/ void write_com(uchar com) { rs=0; rw=0; P0=com; delay(5); e=1; delay(5); e=0; } void write_date(uchar date) { rs=1; rw=0; P0=date; delay(5); e=1; delay(5); e=0; } void write_add_date(uchar add,uchar date) { write_com(0x80+add); write_date(date); } void write_com_com(uchar add,uchar com) { write_com(0x80+add); write_com(com); } /*DS1302写操作；*/ void ds_write_byte(uchar temp1) { uchar i; for (i=0;i<8;i++) { sclk=0; sda=temp1&0x01; temp1>>=1; sclk=1; } } void ds_write(uchar add,uchar date) { rst=0; _nop_(); sclk=0; _nop_(); rst=1; _nop_(); ds_write_byte(add); _nop_(); ds_write_byte(date); rst=0; } /*DS1302读操作；*/ ds_read(uchar add) { uchar i,temp=0x00; rst=0; _nop_(); sclk=0; _nop_(); rst=1; _nop_(); ds_write_byte(add); for (i=0;i<8;i++) { if (sda) temp|=0x80; sclk=0; temp>>=1; sclk=1; } rst=0; _nop_(); //以下为DS1302复位的稳定时间，这里若将_nop_()改成delay(1)，会显示乱码； rst=0; sclk=0; _nop_(); sclk=1; _nop_(); sda=0; _nop_(); sda=1; _nop_(); return(temp); } void init() { uchar i; write_com(0x3f);//功能设置 write_com(0x01);//清屏 write_com(0x0c);//显示开关控制 write_com(0x06);//输入方式 write_com(0x80+0x40+1);//指针 for (i=0;i<7;i++) { write_date(table3[i]); } write_com(0x80+0); for (i=0;i<10;i++) { write_date(table4[i]); } } /*初始值的设置函数；*/ void set() { unsigned char Second=ds_read(0x81); if(Second&0x80) //判断时钟芯片是否 { uchar i,val,aa,bb; ds_write(0x90,0xa5); ds_write(0x8e,0x00); ds_write(0xc8,0x08); for (i=0;i<8;i++) { bb=table2[i]; aa=table1[i]; val=aa/10; aa=aa%10; aa=aa+val*16; ds_write(bb,aa); } } ds_write(0x90,0xa5); ds_write(0x8e,0x80); } /*显示函数；*/ void display() { uchar a,b,c,d,e,f,a1,b1,c1,d1,e1,f1,g,g1; a=ds_read(0x81); a1=bcd_hex(a); write_add_date(0x40+7,table[a1/10]); write_add_date(0x40+8,table[a1%10]); b=ds_read(0x83); b1=bcd_hex(b); write_add_date(0x40+4,table[b1/10]); write_add_date(0x40+5,table[b1%10]); c=ds_read(0x85); c1=bcd_hex(c); write_add_date(0x40+1,table[c1/10]); write_add_date(0x40+2,table[c1%10]); d=ds_read(0x87); d1=bcd_hex(d); write_add_date(8,table[d1/10]); write_add_date(9,table[d1%10]); e=ds_read(0x89); e1=bcd_hex(e); write_add_date(5,table[e1/10]); write_add_date(6,table[e1%10]); f=ds_read(0x8d); f1=bcd_hex(f); write_add_date(2,table[f1/10]); write_add_date(3,table[f1%10]); g=ds_read(0x8b); g1=bcd_hex(g); write_add_date(15,table[g1%10]); } /*将DS13202中的数据读出，在将扫描到的新数据写入到ds1302中，再读出，最终通过delay()函数显示出来*/ key2() { uchar m,m1,m11,f,f1,f11,s,s1,s11,d,d1,d11,t,t1,t11,y,y1,y11,flag,m2,f2,s2,d2,t2,y2,w,w1,w11,w2; m2=ds_read(0x81); miao=bcd_hex(m2); f2=ds_read(0x83); fen=bcd_hex(f2); s2=ds_read(0x85); shi=bcd_hex(s2); d2=ds_read(0x87); day=bcd_hex(d2); t2=ds_read(0x89); month=bcd_hex(t2); y2=ds_read(0x8d); year=bcd_hex(y2); w2=ds_read(0x8b); week=bcd_hex(w2); if (k==1) { flag=0; write_com_com(0x40+8,0x0d); if (num!=20) /*num若等于20，则证明无键按下*/ { write_date(table[num]); m1=ds_read(0x81); m11=bcd_hex(m1); miao=((m11/10)*10+num); /*将键盘值读入显示函数中，若没有这步，输入的键盘值将不被保存*/ flag=1; ds_write(0x8e,0x00); m=miao/10; miao=miao%10; miao=miao+m*16; ds_write(0x80,miao+128); ds_write(0x8e,0x80); } } if (k==2) { write_com_com(0x40+7,0x0d); if (num!=20) { write_date(table[num]); if (num>5) { miao=0; fen=0; shi=0; } else { if(flag==0) { m1=ds_read(0x81); m11=bcd_hex(m1); miao=((m11%10)+(num*10)); ds_write(0x8e,0x00); m=miao/10; miao=miao%10; miao=miao+m*16; ds_write(0x80,miao+128); ds_write(0x8e,0x80); } else { miao=((miao%10)+(num*10)); ds_write(0x8e,0x00); m=miao/10; miao=miao%10; miao=miao+m*16; ds_write(0x80,miao+128); ds_write(0x8e,0x80); } } } } if (k==3) { flag=0; write_com_com(0x40+5,0x0d); if (num!=20) { write_date(table[num]); f1=ds_read(0x83); f11=bcd_hex(f1); fen=((f11/10)*10+num); ds_write(0x8e,0x00); f=fen/10; fen=fen%10; fen=fen+f*16; ds_write(0x82,fen); ds_write(0x8e,0x80); flag=1; } } if (k==4) { write_com_com(0x40+4,0x0d); if (num!=20) { write_date(table[num]); if (num>5) { miao=0; fen=0; shi=0; } else { if(flag==0) { f1=ds_read(0x83); f11=bcd_hex(f1); fen=((f11%10)+(num*10)); ds_write(0x8e,0x00); f=fen/10; fen=fen%10; fen=fen+f*16; ds_write(0x82,fen); ds_write(0x8e,0x80); } else { fen=((fen%10)+(num*10)); ds_write(0x8e,0x00); f=fen/10; fen=fen%10; fen=fen+f*16; ds_write(0x82,fen); ds_write(0x8e,0x80); } } } } if (k==5) { flag=0; write_com_com(0x40+2,0x0d); if (num!=20) { write_date(table[num]); s1=ds_read(0x85); s11=bcd_hex(s1); shi=((s11/10)*10+num); ds_write(0x8e,0x00); s=shi/10; shi=shi%10; shi=shi+s*16; ds_write(0x84,shi); ds_write(0x8e,0x80); flag=1; } } if (k==6) { write_com_com(0x40+1,0x0d); if (num!=20) { write_date(table[num]); if (num>2) { miao=0; fen=0; shi=0; } else { if(flag==0) { s1=ds_read(0x85); s11=bcd_hex(s1); shi=((s11%10)+num*10); ds_write(0x8e,0x00); s=shi/10; shi=shi%10; shi=shi+s*16; ds_write(0x84,shi); ds_write(0x8e,0x80); } else { shi=((shi%10)+num*10); ds_write(0x8e,0x00);