本人懂一点汇编，c语言只懂很少的几条语句，因为课设问题向学长求助，但其给我的资料是用c语言写的，不是很懂他的按键设置，如何定时和实现其他功能，求高手指点迷津，下面附上部分说明，和dsn，及程序本体docx。
#include<reg51.h>
#include<intrins.h>
typedef unsigned char uchar;
typedef unsigned int uint;
uchar count0,s0num,s2num;
uchar count=0,h,min,s,h0,min0,h1,min1,h2,min2,h3,min3;
uchar key,kind;
uchar *k,*dos,k0,dos0,k1,dos1,k2,dos2,k3,dos3;
uchar code dis3[]={"0123456789"};
sbit e = P2^7;
sbit rs = P2^5;
sbit rw = P2^6;
sbit DB7= P0^7;
sbit s0 = P1^0;
sbit s1 = P1^1;
sbit s2 = P1^2;
sbit s3 = P1^3;
sbit s4 = P1^4;
sbit s5 = P1^5;
sbit s6 = P1^6;
sbit s7 = P1^7;
sbit LED = P3^0;
sbit FMQ = P3^1;
void delay(uchar ms)
{
uchar i;
while(ms--)
{
for(i=0;i<250;i++)
{
_nop_();
_nop_();
_nop_();
_nop_();
}
}
}
bit busy()
{
bit result;
rs=0;
rw=1;
e=0;
e=1;
_nop_();
_nop_();
_nop_();
_nop_();
result=(bit)(P0&0x80);
e=0;
return result;
}
void wcmd(uchar cmd)
{
while(busy());
rs=0;
rw=0;
e=0;
_nop_();
_nop_();
P0=cmd;
_nop_();
_nop_();
_nop_();
_nop_();
e=1;
_nop_();
_nop_();
_nop_();
_nop_();
e=0;
}
void wdate(uchar dat)
{
while(busy());
rs=1;
rw=0;
e= 0;
P0=dat;
_nop_();
_nop_();
_nop_();
_nop_();
e=1;
_nop_();
_nop_();
_nop_();
_nop_();
e=0;
}
void init()
{
delay(5);
wcmd(0x3C);
delay(1);
wcmd(0x0c);
delay(1);
wcmd(0x06);
delay(1);
wcmd(0x01);
delay(1);
wcmd(0x82);
}
void display(uchar x,uchar y,uchar *p)
{
switch (x)
{
case 1:wcmd(0x7f+y);break;
case 2:wcmd(0x7f+0x40+y);
}
while(*p)
wdate(*p++);
}
void wtim(uchar add,uchar date)
{
uchar i=0;
uchar un,dec;
dec=date/10;
un=date%10;
wcmd(0xc0+add);
i=dec;
wdate(dis3[ i ]);
i=un;
wdate(dis3[ i]);
}
void keyscan()
{
if(s0==0)
{
delay(5);
if(s0==0)
{
wcmd(0x0f);
s0num++;
while(!s0);
if(s0num==1)
{
TR0=0;
wcmd(0xc0+11);
}
if(s0num==2)
{
wcmd(0xc0+8);
}
if(s0num==3)
{
s0num=0;
wcmd(0x0c);
display(1,7,"*");
display(1,16,"*");
TR0=1;
}}}
if(s0num!=0)
{
if(s1==0)
{
delay(10);
if(s1==0)
{
while(!s1);
if(s0num==1)
{
min++;
if(min==60)
min=0;
delay(10);
wtim(11,min);
wcmd(0xc0+11);
}
if(s0num==2)
{
h++;
if(h==24)
h=0;
wtim(8,h);
wcmd(0xc0+8);
}
}
}
}
if(s2==0)
{
delay(5);
if(s2==0)
{
s2num++;
while(!s2);
if(s2num==1)
{
TR0=0;
wcmd(0xc0+11);
wcmd(0x0f);
}
if(s2num==2)
{
wcmd(0xc0+8);
}
if(s2num==3)
{
wcmd(0x86);
}
if(s2num==4)
{
wcmd(0x8F);
}
if(s2num==5)
{
s2num=0;
wcmd(0x0c);
TR0=1;
}}}
if(s2num!=0)
{
if(s3==0)
{
delay(5);
if(s3==0)
{
while(!s3);
if(s2num==1)
{
min++;
if(min==60)
min=0;
wtim(11,min);
wcmd(0xc0+11);
}
if(s2num==2)
{
h++;
if(h==24)
h=0;
wtim(8,h);
wcmd(0xc0+8);
}
if(s2num==3)
{
kind++;
switch(kind)
{
case 1:display(1,7,"A");wcmd(0x7f+7);k="A"; break;
case 2:display(1,7,"B");wcmd(0x7f+7);k="B"; break;
case 3:display(1,7,"C");wcmd(0x7f+7);k="C"; break;
case 4:display(1,7,"D");wcmd(0x7f+7);k="D";kind=0; break;
default:display(1,7,"$");wcmd(0x7f+7);break;
}} if(s2num==4)
{
uchar i;
i++;
switch(i)
{
case1:display(1,16,"1");wcmd(0x7f+16);dos="1"; break; case2:display(1,16,"2");wcmd(0x7f+16);dos="2"; break;
case 3:display(1,16,"3");wcmd(0x7f+16);dos="3"; break;
case 4:display(1,16,"4");wcmd(0x7f+16);dos="4"; break;
case 5:display(1,16,"5");wcmd(0x7f+16);dos="5"; break;
case 6:display(1,16,"6");wcmd(0x7f+16);dos="6"; break;
case 7:display(1,16,"7");wcmd(0x7f+16);dos="7"; break;
case 8:display(1,16,"8");wcmd(0x7f+16);dos="8"; break;
case 9:display(1,16,"9");wcmd(0x7f+16);dos="9";i=0;break; default:display(1,16,"$");wcmd(0x7f+10);break;
}}}}}}
void main()
{
P0=0x00;
init();
do
{
display(1,1,"P.");
}
while((s0&&s1&&s2&&s3&&s4&&s5&&s6&&s7)==1);
display(1,1,"Drug--# Dosis--#");
display(2,1,"Time 00:00:00");
TMOD=0x01;
TH0=(65536-49958)/256;
TL0=(65536-49958)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
keyscan() ;
if(count==20)
{
s++;
count=0;
if(s==60)
{
s=0;
min++;
s=0;
if(min==60)
{
h++;
min=0;
if(h==24)
{
h=0;
}
wtim(8,h);
}
wtim(11,min);
}
wtim(14,s);
if(s4==0)
{
delay(5);
if (s4==0)
{
while(!s4);
k0=*k;
dos0=*dos;
h0=h;
min0=min;
key++;
}}
if(s5==0)
{
delay(5);
if (s5==0)
{
while(!s4);
k1=*k;
dos1=*dos;
h1=h;
min1=min;
key++;
}}
if(s6==0)
{
delay(5);
if (s6==0)
{
while(!s4);
k2=*k;
dos2=*dos;
h2=h;
min2=min;
key++;
}}
if(s7==0)
{
delay(5);
if (s7==0)
{
while(!s4);
k3=*k;
dos3=*dos;
h3=h;
min3=min;
key++;
}}
if((h0==h)&&(min0==min))
{
if(key!=0)
{
wcmd(0x86);
wdate(k0);
wcmd(0x8f);
wdate(dos0);
LED=1;
delay(5);
LED=0;
for(count0=0;count0<20;count0++)
{
FMQ=0;
delay(1);
FMQ=1;
}}LED=1;}
if((h1==h)&&(min1==min))
{
if(key!=0)
{
wcmd(0x86);
wdate(k1);
wcmd(0x8f);
wdate(dos1);
LED=1;
delay(5);
LED=0;
for(count0=0;count0<20;count0++)
{
FMQ=0;
delay(1);
FMQ=1;
}}LED=1;}
if((h2==h)&&(min2==min))
{
if(key!=0)
{
wcmd(0x86);
wdate(k2);
wcmd(0x8f);
wdate(dos2);
LED=1;
delay(5);
LED=0;
for(count0=0;count0<20;count0++)
{
FMQ=0;
delay(1);
FMQ=1;
}}LED=1;}
if((h3==h)&&(min3==min))
{
if(key!=0)
{
wcmd(0x86);
wdate(k3);
wcmd(0x8f);
wdate(dos3);
LED=1;
delay(5);
LED=0;
for(count0=0;count0<20;count0++)
{
FMQ=0;
delay(1);
FMQ=1;
}} LED=1;}}}
while(1);}
void T0_int(void) interrupt 1
{
count++;
TF0=0;
TH0=(65536-49958)/256;
TL0=(65536-49958)%256;
}
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