project1--pic

char a,volt;

void elay(int s)
{
while(s--);
}

void adcint(int ch)
{
ADCON0=ch;
ADCON1=0x82;
ADIF=0;
}
unsigned int adcread()
{
ADGO=1;
while(ADGO==1);
elay(100);
ADGO=0;
ADIF=0;
a=(ADRESH<<8 | ADRESL)*0.49;
return(a);
}

void convert(char volt)
{
int d,e,f,g;
d=a/100;
e=a%100;
f=e/10;
g=e%10;
adc=1;
lcddisp(d+0x30);
elay(10);
lcddisp(f+0x30);
elay(10);
lcddisp(g+0x30);
p=192;
adc=0;
lcdcmd(0x80);
elay(1000);

}
void adcfun()
{

 adcint(0xc1);
 volt=adcread();
 convert(volt);
  elay(6500);
}

/*
void main()
{
char volt;

TRISA=0xff;
TRISE=0x00;
TRISD=0x00;
TRISC=0x00;
while(1)
{
intlcd();
 adcint(0xc1);
 volt=adcread();
 convert(volt);
elay(6500);
lcdcmd(0x01);

}
}
*/

#define rs RC0

#define rw RC1

#define en RC2

int count=0;

int adc=0;

int p=192;

void lcdint();

void lcddisp(char chr);

void lcdcmd(int cmd);

void delay(int s);

void lcdstr(unsigned char *str);

void lcddisp1(char);

void delay(int s)

{

while(s--);

}

void lcdint()

{

lcdcmd(0x38);

lcdcmd(0x01);

lcdcmd(0x0E);

lcdcmd(0x06);

lcdcmd(0x80);

}

void lcdread()

{

char chrrd;

rw=1;

rs=1;

chrrd=PORTD;

en=1;

delay(100);

en=0;

}

void lcddisp(char chr)

{

if(count==16)

{

lcdcmd(0x80);

lcdstr("                 ");

lcdcmd(0x80);

count=0;

}

if(adc==1)

{

lcdcmd(p);

rw=0;

rs=1;

PORTD=chr;

en=1;

delay(100);

en=0;

p++;

}

rw=0;

rs=1;

PORTD=chr;

en=1;

delay(100);

en=0;

count++;

}

void lcdcmd(int cmd)

{

rw=0;

rs=0;

PORTD=cmd;

en=1;

delay(100);

en=0;

if(cmd==0x01)

count=0;

}

void lcddisp1(char disp1)

{

rw=0;

rs=1;

PORTD=disp1;

en=1;

delay(100);

en=0;

}

void lcdstr(unsigned char *str)

{

while(*str)

{

delay(2500);

lcddisp1(*str++);

}

}

#include<htc.h>

#include<string.h>

#include"lcdsub.c"

#include "serialsub.c"

#include"adcsub.c"

void main()

{

TRISD=0x00;

TRISC=0X00;

TRISA=0xff;

TRISC=0x00;

TRISC7=1;

lcdint();

serialint();

adcint(0xc1);

lcdstr("spiro  tech's");

delay(12500);

delay(100);

serialwrite('o');

serialwrite('k');

lcdcmd(0x01);

char volt;

adcfun();

while(1)

{

char chr;

chr=serialread();

serialwrite(chr);

lcddisp(chr);

}

}


#define xtalfreq 4000000
#define baudrate 9600

void serialwrite(char tx);
char serialread();

void serialint()
{
  TRISC6=0;
  TRISC7=1;
SPBRG=25;//((xtalfreq/16)*1/baudrate)-1;
BRGH=1;
SYNC=0;
SPEN=1;
CREN=1;
SREN=0;
TXIE=0;
RCIE=1;
TX9=0;
RX9=0;
TXEN=0;
TXEN=1;
}
void serialwrite(char tx)
{
TXREG=tx;
while(TRMT==0);
TRMT=0;
}
char serialread()
{
char rx;
while(RCIF==0);
rx=RCREG;
RCIF=0;
return (rx);
}