51单片机程序求助

lgfyhx 2009-09-11 02:49:03

本人需要编作以下程序,请各位高手帮忙！
应用AT89C2051单片，(20脚MCS51芯片)P1.0--P1.7组成3*4键盘矩阵输入电路。P3.4为控制输出端.P3.3,P3.7为设置指示灯.P3.2为声讯指示端。具体程式如下:加电复位--输入密码--确定--(是)正常开机(否)反回重输入密码.再次确定.正确开机(开机为P3.4脚输出4秒高电平.)如重置密码正常开机后按设定键.P3.3低电位.灯亮.输入1----8位新密码(随意) 确定.P3.7低电位,灯亮,P3.3恢复高电位.灯灭.再次输入新密码--确定.正确,P3.7恢复高电位,设定完毕.不正确.P3.7闪烁三次.提示重输密码.再次输入新密码.至P3.7恢复高电位,灯灭.设置完成.初始密码为000000
最好采用汇编语言.C51语言也可.
QQ：562680

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Necho 2010-05-11

#include<reg52.h>
#include<intrins.h>

#define uchar unsigned char
#define uint unsigned int

uchar code table[]={"0123456789-:"};
uchar code table_title[]={"Date: Time:"};

uchar year,month,day,weekday,hour,min,sec;

sbit SLK=P1^1;
sbit IO=P1^2;
sbit RST=P1^3;
sbit lcden=P3^4;
sbit lcdrs=P3^5;

sbit wela=P2^6;
sbit dula=P2^7;

void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);

}

void write_one_bite(uchar dat)
{
uchar i;
RST = 0;
SLK=0;
RST=1;

for(i=0;i<8;i++)
{
IO=dat&0x01;
SLK=1;
_nop_();
SLK=0;
dat>>=1;
}
/* for(i=0;i<8;i++)
{
IO=dat&0x01;SLK=1;SLK=0;dat>>=1;
}
*/

}

uchar read_one_bite()
{
uchar i,dat;

for(i=0;i<8;i++)
{
dat>>=1;
if(IO)
dat|=0x80;

SLK=1;
_nop_();
SLK=0;
_nop_();

}
SLK=1;
RST=0;
return dat;
/* uchar b=0x00;
for(i=0;i<8;i++)
{
b |= _crol_((uchar)IO,i);
SLK=1;SLK=0;
}
return b; */
}
void write_com(uchar com)
{
lcdrs=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}

void write_data(uchar date)
{
lcdrs=1;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init_lcd()
{
dula=0;
wela=0;
lcden=0;

write_com(0x38);
write_com(0x0e);
write_com(0x06);
write_com(0x01);
write_com(0x80);
}

void init_1302()
{

write_one_bite(0x8e);
write_one_bite(0x00); RST=0;

write_one_bite(0x90);
write_one_bite(0xa5); RST=0;

write_one_bite(0x80);
write_one_bite(0x49); RST=0;

write_one_bite(0x82);
write_one_bite(0x59); RST=0;

write_one_bite(0x84);
write_one_bite(0x10); RST=0;
write_one_bite(0x86);
write_one_bite(0x01); RST=0;
write_one_bite(0x88);
write_one_bite(0x08); RST=0;
write_one_bite(0x8a);
write_one_bite(0x03); RST=0;
// write_one_bite(0x80);
// write_one_bite(0x09); RST=0;

write_one_bite(0x8c);
write_one_bite(0x07); RST=0;
*/

write_one_bite(0x80);
write_one_bite(0x38);
write_one_bite(0x8e);
write_one_bite(0x80); RST=0;
}

void year_display()
{
uchar temp,i;

write_one_bite(0x8d);
year=read_one_bite();
write_com(0x80);
temp=year&0xf0;
temp=_iror_(temp,4);
for(i=0;i<4;i++)
write_data(table_title[i]);
write_data(table[temp*1]);

write_data(table[(year&0x0f)*1]);
}
void month_display()
{
uchar temp;
write_one_bite(0x89);
month=read_one_bite();
write_com(0x80+0x07);
temp=month&0x10;
write_data(table[(temp>>=4)*1]);
write_data(table[(month&0x0f)*1]);
}
void day_display()
{
uchar temp;
write_one_bite(0x87);
day=read_one_bite();
write_com(0x80+0x0a);
temp=day&0x30;
write_data(table[((temp>>=4)*1)]);
write_data(table[(year&0x0f)*1]);
}
void weekday_display()
{
write_one_bite(0x8d);
weekday=read_one_bite();
write_com(0x80+0x0d);

write_data(table[(weekday&0x07)*1]);

}
void hour_display()
{
uchar temp,i;
write_one_bite(0x85);
hour=read_one_bite();
write_com(0x80+0x40);
for(i=5;i<=9;i++)
write_data(table_title[i]);
temp=hour&0x30;
temp=temp>>4;
write_data(table[temp*10/10]);
delay(2);
write_data(table[(hour&0x0f)*10/10]);
}
void min_display()
{
uchar temp;
write_one_bite(0x83);
min=read_one_bite();
write_com(0x80+0x40+0x08);
temp=min&0x70;
write_data(table[(temp>>=4)*1]);
write_data(table[(min&0x0f)*1]);
}
void sec_display()
{
uchar temp;
write_one_bite(0x81);
sec=read_one_bite();
write_com(0x80+0x40+0x0b);
temp=sec&0x70;
write_data(table[(temp>>=4)*1]);
write_data(table[(sec&0x0f)*1]);
}

void main()
{
init_1302();
init_lcd();

while(1)
{

year_display();
write_data(table[10]);
month_display();
write_data(table[10]);
day_display();
write_data(table[10]);
weekday_display();
hour_display();
write_data(table[11]);
min_display();
write_data(table[11]);
sec_display();

}
}