input i given through switch..o/p diisplay on lcd..

[jaya krishna]

hi every one, i give input through switch if its high means display 1 on lcd if its low means display 0 on lcd.... i done the program it execute correctly....but in Proteus the lcd display show nothing....but i connect in led it work correctly...i think i do some mistake in my program pls any one can help me ....

#if defined(__PCH__)
#include <18F452.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)
#endif

#define  RS PIN_C0
#define  RW PIN_C1
#define  EN PIN_C2

void lcdcmd(unsigned char cmd);
void lcddata(unsigned char dat);

void main()
{

int x;

set_tris_b(0x00);
set_tris_a(0xff);

 lcdcmd(0x38);
 lcdcmd(0x0E);
 lcdcmd(0x01);
 lcdcmd(0x86);

while(1)
{

//x = input(PIN_A0);

x = input_a();
if(x==1)
{
//output_high(PIN_B0);
lcddata(0x01);
}
else
{
//output_low(PIN_B0);
lcddata(0x00);
}
}
}

void lcdcmd(unsigned char cmd)
{

 output_c(cmd);
 output_low(RS);
 output_low(RW);
 output_high(EN);
 delay_ms(1);
 output_low(EN);
}
void lcddata(unsigned char dat)
{

  output_c(dat);
  output_high(RS);
  output_low(RW);
  output_high(EN);
  delay_ms(1);
  output_low(EN);
}

 

[sky_123]

You might want to try

lcddata('1');

instead of

lcddata(0x01);

and a similar type of thing for zero. (Guessing your LCD expects ASCII).

 

[jaya krishna]

thanks friend i miss to add the 0x30..... i get output...