开发一个单片机与1602LCD组成的日历、时间表.docx

题目：开发一个单片机与1602LCD组成的日历、时间表。选用AT89S52单片机和1602LCD液晶显示器及一个DS1302时钟芯片。设置初始时间为09年6月18日 23点59分55秒。硬件原理图：硬件I/O接口参见下图：AT89S52单片机的I/O口C语言程序：#include #include unsigned char code digit10=0123456789; sbit SCLK=P10; sbit DATA=P11; sbit RST=P12; /*函数功能：延时若干微秒*/ void delaynus(unsigned char n) unsigned char i; for(i=0;in;i+);/*函数功能：向1302写一个字节数据*/ void Write1302(unsigned char dat) unsigned char i; SCLK=0; delaynus(2); for(i=0;i=1; /*函数功能：根据命令字，向1302写一个字节数据*/ void WriteSet1302(unsigned char Cmd,unsigned char dat) RST=0; SCLK=0; RST=1; delaynus(2); Write1302(Cmd); Write1302(dat); SCLK=1; RST=0; /*函数功能：从1302读一个字节数据*/ unsigned char Read1302(void) unsigned char i,dat;delaynus(2); for(i=0;i=1; if(DATA=1) dat|=0x80; SCLK=1; delaynus(2); SCLK=0; delaynus(2); return dat; /*函数功能：根据命令字，从1302读取一个字节数据*/ unsigned char ReadSet1302(unsigned char Cmd) unsigned char dat; RST=0; SCLK=0; RST=1; Write1302(Cmd); dat=Read1302(); SCLK=1; RST=0; return dat; /*函数功能： 1302进行初始化设置*/ void Init_DS1302(void) unsigned char flag; flag= ReadSet1302(0x81);if(flag&0x80) WriteSet1302(0x8E,0x00); WriteSet1302(0x80,(55/10)4|(55%10); WriteSet1302(0x82,(59/10)4|(59%10); WriteSet1302(0x84,(23/10)4|(23%10);WriteSet1302(0x86,(18/10)4|(18%10); WriteSet1302(0x88,(6/10)4|(6%10); WriteSet1302(0x8c,(9/10)4|(9%10); WriteSet1302(0x90,0xa5); WriteSet1302(0x8E,0x80); /*以下是对液晶模块的操作程序*/sbit RS=P20; sbit RW=P21; sbit E=P22; sbit BF=P07; /*函数功能：延时1ms*/void delay1ms() unsigned char i,j; for(i=0;i10;i+) for(j=0;j33;j+) ; /*函数功能：延时若干毫秒*/ void delaynms(unsigned char n) unsigned char i;for(i=0;i4)*10 + (ReadValue&0x0F); DisplaySecond(second); ReadValue = ReadSet1302(0x83); minute=(ReadValue&0x70)4)*10 + (ReadValue&0x0F); DisplayMinute(minute); ReadValue = ReadSet1302(0x85); hour=(ReadValue&0x70)4)*10 + (ReadValue&0x0F); DisplayHour(hour); ReadValue = ReadSet1302(0x87); day=(ReadValue&0x70)4)*10 + (ReadValue&0x0F); DisplayDay(day); ReadValue = ReadSet1302(0x89); month=(ReadValue&0x70)4)*10 + (ReadValue&0x0F); DisplayMonth(m