dsdsb的显示万年历和温度程序.docVIP

程序清单 #includereg51.h #include ds18b20.h #define uint unsigned int #define uchar unsigned char uchar a,miao,shi,fen,ri,yue,nian,week,flag,key1n,temp; #define yh 0x80 #define er 0x80+0x40 sbit rs=P1^0; sbit en=P1^2; sbit rw=P1^1; sbit IO=P3^6; //1302 sbit SCLK=P3^5; sbit RST=P3^7; sbit key1 = P1^4; sbit key2 = P1^5; sbit key3 = P1^6; sbit buzzer=P1^3; sbit ACC0=ACC^0; sbit ACC7=ACC^7; uchar code tab1[]={20 - - }; uchar code tab2[]={ : : }; void delay(uint xms) { uint x,y; for(x=xms;x0;x--) for(y=110;y0;y--); } write_1602com(uchar com) { rs=0; rw=0; P0=com; delay(1); en=1; delay(1); en=0; } write_1602dat(uchar dat) { rs=1; rw=0; P0=dat; delay(1); en=1; delay(1); en=0; } lcd_init() { write_1602com(0x38); write_1602com(0x0c); write_1602com(0x06); write_1602com(0x01); write_1602com(yh+1); for(a=0;a14;a++) { write_1602dat(tab1[a]); } write_1602com(er+2); for(a=0;a8;a++) { write_1602dat(tab2[a]); } } void write_byte(uchar dat) { ACC=dat; RST=1; for(a=8;a0;a--) { IO=ACC0; SCLK=0; SCLK=1; ACC=ACC1; } } uchar read_byte() { RST=1; for(a=8;a0;a--) { ACC7=IO; SCLK=1; SCLK=0; ACC=ACC1; } return (ACC); } void write_1302(uchar add,uchar dat) { RST=0; SCLK=0; RST=1; write_byte(add); write_byte(dat); SCLK=1; RST=0; } uchar read_1302(uchar add) { uchar temp; RST=0; SCLK=0; RST=1; write_byte(add); temp=read_byte(); SCLK=1; RST=0; return(temp); } uchar BCD_Decimal(uchar bcd) { uchar Decimal; Decimal=bcd4; return(Decimal=Decimal*10+(bcd=0x0F)); } void ds1302_init() { RST=0; SCLK=0; write_1302(0x8e,0x00); //允许写，禁止写保护 write_1302(0x80,0x00); write_1302(0x82,0x00); write_1302(0x84,0x12); write_1302(0x8a,0x04); write_1302(0x86,0x07); write_1302(0x88,0x02); write_1302(0x8c,0x14); write_1302(0x8e,0x80); //打开写保护 } void write_sfm(uchar add,uchar dat) { uchar gw,sw; gw=dat%10; sw=dat/1