#include?

#define?uchar?unsigned?char??
#define?uint?unsigned?int
#define?ulong?unsigned?long
#define?p0?P0
#define?p3?P3
?
sbit?en=P1^0;?
sbit?rs=P1^2;
sbit?rw=P1^1;

sbit?adda=P1^3;
sbit?addb=P1^4;
sbit?addc=P1^5;
sbit?ale=P1^6;/*選擇通道*/

sbit?start=P1^7;/*上升ad沿復(fù)位，下降沿ad開(kāi)始轉(zhuǎn)換模數(shù)*/
sbit?eoc=P3^0;	/*為1時(shí)就可以取數(shù)據(jù)了（硬件自己干的）*/
sbit?oe=P3^1;	/*為0?ad輸出高阻態(tài)，為1?ad向單片機(jī)輸數(shù)據(jù)（你要做的）*/

uint??vm0;
uchar?vv_2v_1v_0;

??
char?cont[]={‘0‘‘1‘‘2‘‘3‘‘4‘‘5‘‘6‘‘7‘‘8‘‘9‘};

void?init（）;?
void?init2（）;
void?delay（uint?z）;?
void?delay1（uint?m）;?
void?write_com（uchar?com）;?
void?write_data（uchar?date）;?
void?LCD_set_xy（?unsigned?char?x?unsigned?char?y?）;

?void?LCD_write_char（unsigned?char?Xunsigned?char?Yunsigned?char?data1）
{
??LCD_set_xy（?X?Y?）;?
??write_data（?data1）;
??
}

?void?LCD_set_xy（?unsigned?char?x?unsigned?char?y?）?
{
????unsigned?char?address;
????if?（y?==?0）?address?=?0x80?+?x;
????else???address?=?0xc0?+?x;
????write_com（?address）;
}

void?write_string（unsigned?char?Xunsigned?char?Yunsigned?char?*s）?
{
????LCD_set_xy（?X?Y?）;???
????while?（*s）??
????{
??????write_data（?*s?）;
??????s?++;
????}
??????
}

void?main（）?
{
init（）;
init2（）;
delay（100）;
while（1）
{
?start=0;
?start=1;
?oe=0;
?start=0;
?while（eoc==1）;
?oe=1;			???
?v=p0;
?oe=0;
?if（v>50）
?{
?vm0=（（uint）v*196）/100;
?}
?else
?{
??vm0=（uint）v*2;
?}
?v_2=（vm0/100）%10;
?v_1=（vm0%100）/10;
?v_0=vm0%10;

write_string（00“U:“）;
LCD_write_char（20v_2+‘0‘）;
LCD_write_char（30‘.‘）;
LCD_write_char（40v_1+‘0‘）;
LCD_write_char（50v_0+‘0‘）;
write_string（60“v“）;
?

}
?
}?

void?init（）?
{?
en=0;
rw=0;
write_com（0x38）;?
write_com（0x0c）;?
write_com（0x06）;?
write_com（0x01）;?
}?

void?init2（）
{
??adda=0;
??addb=0;
??addc=0;
??ale=0;
??delay（10）;
??ale=1;
??delay（10）;
??ale=0;
}?


void?delay（uint?z）?
{?
uchar?xy;?
for?（x=z;x>0;x--）?
for?（y=10;y>0;y--）;?
}?


void?write_com（uchar?com）?
{?
rs=0;?
delay（5）;?
P2=com;?
delay（5）;?
en=1;?
delay（5）;?
en=0;?
}?

void?write_data（uchar?date）?
{?
rs=1;?
delay（5）;?
P2=date;?
delay（5）;?
en=1;?
delay（5）;?
en=0;?
}?

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????文件??????97688??2011-08-08?19:48??仿真\ad.DSN

?????文件????????768??2011-08-08?19:48??仿真\ad.PWI

?????文件??????51692??2011-08-08?13:32??仿真\Last?Loaded?ad.DBK

?????文件???????7838??2011-08-08?19:56??程序\ad

?????文件???????2254??2011-08-08?19:56??程序\ad.c

?????文件???????2011??2011-08-08?19:56??程序\ad.hex

?????文件?????????36??2011-08-08?19:56??程序\ad.lnp

?????文件???????5398??2011-08-08?19:56??程序\ad.LST

?????文件??????10586??2011-08-08?19:56??程序\ad.M51

?????文件???????8836??2011-08-08?19:56??程序\ad.OBJ

?????文件????????954??2011-08-08?19:56??程序\ad.Opt

?????文件??????50342??2011-08-08?19:56??程序\ad.plg

?????文件???????2095??2011-08-08?19:56??程序\ad.Uv2

????.......?????????0??2011-08-08?08:57??程序\ad_Uv2.Bak

?????目錄??????????0??2011-08-08?19:48??仿真

?????目錄??????????0??2011-08-08?19:56??程序

-----------?---------??----------?-----??----

???????????????240498????????????????????16