大家来看看这个程序
#include<AT89X51.H>unsigned charcode dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};
unsigned charcode dispbitcode[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned chardispbuf[]={10,10,10,10,0,0,0,0};
unsignedinttemp ;
unsignedchar i;
unsigned char dispcount=0;
unsigned char getdata;
sbit ST=P3^0;
sbit OE=P3^1;
sbit EOC=P3^2;
sbit CLK=P3^3;
voidmain(void)
{
ST=0;
OE=0;
ET0=1;
ET1=1;
EA=1;
TMOD=0x12;
TH0=216;
TL0=216;
TH1=(65535-4000)/256;
TL1=(65535-4000)%256;
TR0=1;
TR1=1;
ST=1;
ST=0;
while(1)
{
if(EOC==1)
{
OE=1;
getdata=P0;
OE=0;
temp=getdata*235;
temp=temp/128;
i=0;
dispbuf=0;
dispbuf=0;
dispbuf=0;
dispbuf=10;
dispbuf=10;
dispbuf=10;
dispbuf=10;
dispbuf=10;
while(temp/10)
{
dispbuf=temp%10;
temp=temp/10;
i++;
}
dispbuf=temp;
ST=1;
ST=0;
}
}
}
void t0(void) interrupt 1 using 0
{
CLK=~CLK;
}
void t1(void) interrupt 3 using 0
{
TH1=(65535-4000)/256;
TL1=(65535-4000)%256;
P1=dispcode];
P2=dispbitcode;
if(dispcount==1)
{
P1=P1|0x80;
}
dispcount++;
if(dispcount==8)
{
dispcount==0 ;
}
}
数码管显示0000没有显示电压值，还望高手指点一下`` 外加说明`这是一个数摸转换实验并用数码管显示 楼主的程序什么说明都没有, 连硬件说明都没有, 什么芯片, 怎么连接, 如何驱动数码管, 看起来比较吃力啊!
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