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#include"reg51.h"
sbit start=P3^0;
sbit eoc=P3^1;
sbit oe=P3^2;
sbit RS=P3^3;
sbit RW=P3^4;
sbit E=P3^5;
unsigned char vol=0;
unsigned char t[]={"0123456789"};
unsigned char str[]={"Hello world!"};
void delay(unsigned int n)
{
unsigned int i=0,j=0;
for(i=0;i<n;i++)
{
for(j=0;j<120;j++);
}
}
void adc()
{
start=0;
start=1;
delay(5);
start=0;
while(eoc!=1);
oe=1;
vol=P2;
oe=0;
}
void writedat(unsigned char dat)
{
RS=1;
RW=0;
E=0;
P1=dat;
delay(5);
E=1;
E=0;
}
void writecom(unsigned char com)
{
RS=0;
RW=0;
E=0;
P1=com;
delay(5);
E=1;
E=0;
}
void initlcd()
{
writecom(0x38);
writecom(0x0c);
writecom(0x06);
writecom(0x01);
}
void display()
{
unsigned char temp0=0,temp1=0,temp2=0;
temp0=vol/100;
temp1=(vol%100)/10;
temp2=vol%10;
writecom(0x80);
delay(5);
writedat(t[temp0]);
delay(5);
writedat(t[temp1]);
delay(5);
writedat(t[temp2]);
delay(5);
}
//void display()
//{
//unsigned int i=0;
//writecom(0x80);
//delay(5);
//while(str[i]!='\0')
//{
//writedat(str[i]);
//delay(5);
//i++;
//}
//}
void main ()
{
initlcd();
while(1)
{
adc();
delay(5);
display();
delay(5);
}
}
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