基于51單片機(jī)-DS1302-LCD1602數(shù)字時(shí)鐘顯示

1、精選優(yōu)質(zhì)文檔-傾情為你奉上#include <reg51.h> #include <intrins.h> #include <string.h> #define uint unsigned int #define uchar unsigned char uchar code table="I LIKE MCU!" sbit RS=P20; sbit RW=P21; sbit EN=P22; sbit IO=P10; sbit sclk=P11; sbit rst=P12; uchar *week="SUN","

2、;*","MON","TUS","WEN","THU","FRI","SAT" uchar lcd_buffer1="DATE 00-00-00 " uchar lcd_buffer2="TIME 00:00:00 " uchar datetime7; void delay(uchar ms) uchar i; while(ms-) for(i=0;i<120;i+); /忙檢測(cè) uchar busy() uchar t

3、est; RW=1; RS=0; EN=1; test=P0; EN=0; return test; /寫(xiě)LCD命令 void writecmd(uchar cmd) while(busy()&0x80)=0x80); RS=0; RW=0; P0=cmd; EN=1; delay(5); EN=0; /發(fā)送數(shù)據(jù) void writedata(uchar dat) while(busy()&0x80)=0x80); RW=0; RS=1; P0=dat; EN=1; delay(5); EN=0; void init() writecmd(0x38); delay(5); wr

4、itecmd(0x01); delay(5); writecmd(0x06); delay(5); writecmd(0x0c); delay(5); void write_a_byte_tods1302(uchar x) uchar i; for(i=0;i<8;i+) IO=x&0x01; sclk=1; sclk=0; x=x>>1; uchar get_a_byte_fromds1302() uchar i,b=0x00; for(i=0;i<8;i+) b|= _crol_(uchar)IO,i); sclk=1; sclk=0; return b/1

5、6*10+b%16;uchar read_data(uchar addr) uchar dat; rst=0;sclk=0;rst=1; write_a_byte_tods1302(addr); dat=get_a_byte_fromds1302(); sclk=1;sclk=0; return dat;void gettime() uchar i,addr=0x81; for(i=0;i<8;i+) datetimei=read_data(addr); addr=addr+2; void set_pos(uchar p) writecmd(p|0x80);void dispaly_st

6、ring(uchar p,uchar *s) uchar i; set_pos(p); for(i=0;i<16;i+) writedata(si); delay(5); void zhuanhuan(uchar d,uchar *a)a0=d/10+'0'a1=d%10+'0'void main() init(); while(1) gettime();zhuanhuan(datetime6,lcd_buffer1+5);zhuanhuan(datetime4,lcd_buffer1+8);zhuanhuan(datetime3,lcd_buffer1+11);strcpy(lcd_buffer1+13,weekdatetime5);zhuanhuan(datetime2,lcd_buffer2+5);zhuanhuan(datetime1,lcd_buffer2+8);zhuanhuan(