PIC to PIC interfacing by RS485 by CCS C

#INCLUDE <16f877.H>
#USE DELAY (CLOCK=4000000)
#use rs232(baud=9600,xmit=pin_c6,rcv=pin_c7,stop=1,parity=n)
#include <input.c> 
#use fast_io (b)
#use fast_io (d)
#define use_portb_lcd true
#INCLUDE <LCD420.c>
#define re pin_d0
#define de pin_d1
float x=82.34,y=25.36,z=12.56;
int gb=0;
//
void main()
{
set_tris_b(0x00);
output_b(0x00);
set_tris_d(0x00);
output_d(0x00);
output_high(re);
output_high(de);
delay_ms(50);
lcd_init();
printf(lcd_putc,"\fBilgi: ");

while (1)
{



if(input(pin_d2))
{
   delay_ms(10);
   printf(lcd_putc,"\fBilgi:%f ",x);
   while(input(pin_d2));
   printf("%f",x);
   
}

if(input(pin_d3))
{
   delay_ms(10);
   printf(lcd_putc,"\fBilgi:%f ",y);
   while(input(pin_d3));
   printf("%f",y);
   
}

if(input(pin_d4))
{
   delay_ms(10);
   printf(lcd_putc,"\fBilgi:%f ",z);
   while(input(pin_d4));
   printf("%f",z);
   
}









}
}

#INCLUDE <18F4685.H>
#USE DELAY (CLOCK=4000000)
#use rs232(baud=9600,xmit=pin_c6,rcv=pin_c7,stop=1,parity=n)
#include <input.c> 
#use fast_io (d)

#include <T6963C.c>
#INCLUDE <stdlib.h>
#define re pin_d0
#define de pin_d1

#FUSES NOWDT                    //No Watch Dog Timer
#FUSES WDT128                   //Watch Dog Timer uses 1:128 Postscale
#FUSES PUT                      //Power Up Timer
#FUSES NOBROWNOUT               //No brownout reset
#FUSES NOPBADEN                 //PORTB pins are configured as digital I/O on RESET
#FUSES NOMCLR                   //Master Clear pin used for I/O
#FUSES NOLVP                    //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NOXINST                  //Extended set extension and Indexed Addressing mode disabled (Legacy mode)
#DEFINE fast_glcd


char gelen_bilgi[10],x_str[10];
int sayac;
float x=0;
//
void main()
{
set_tris_d(0x00);
output_d(0x00);

output_low(re);
output_low(de);

glcd_init(240,128); // Grafik LCD ektran hazırlanıyor
glcd_WriteByte(1, (LCDModeSet|LCDMode_XOR)); // Grafik LCD ekran XOR moda göre ayarlanıyor
glcd_WriteByte(1, (LCDDispMode|LCDDisp_TXT|LCDDisp_GRH)); // Grafik LCD ekran hem metin hem grafik modunda çalışacak şekilde ayarlanıyor

sprintf(x_str,"Bilgi: %f",x);//float to string işlemi gerçekleştiriliyor
glcd_text57(60,55,x_str,2,1);//voltaj_str değeri ekrana yazdırılıyor

//
while (1)
{


   for(sayac=0;sayac<5;sayac++)
      {
         gelen_bilgi[sayac]=getc();
      }




x = atof(gelen_bilgi);

x=x+10;

glcd_init(240,128); // Grafik LCD ektran hazırlanıyor
glcd_WriteByte(1, (LCDModeSet|LCDMode_XOR)); // Grafik LCD ekran XOR moda göre ayarlanıyor
glcd_WriteByte(1, (LCDDispMode|LCDDisp_TXT|LCDDisp_GRH)); // Grafik LCD ekran hem metin hem grafik modunda çalışacak şekilde ayarlanıyor

sprintf(x_str,"Bilgi: %f",x);//float to string işlemi gerçekleştiriliyor
glcd_text57(60,55,x_str,2,1);//voltaj_str değeri ekrana yazdırılıyor

}}

char start_byte =  '<';
char stop_byte  =  '>';
#INT_RDA2
void serihaberlesme_kesmesi () 
{
   buffer[1]=fgetc(RS485);
   if(buffer[1]==start_byte)
   {
      buffer[1]=1;
      disable_interrupts(INT_RDA2);
      data_got=1; 
   }
               
}

void main()
{
   // Set I/O states of the ports
   //           76543210
   set_tris_a(0b00000000);
   set_tris_b(0b11000000);
   set_tris_c(0b00000000);
   set_tris_d(0b00000000);
   set_tris_e(0b00000000);
   set_tris_f(0b11110000);
   set_tris_g(0b11100100);

   

   set_pin_states(); //bütün motorları durdurur
   set_adress();     //jumperlara göre adresini algılar
   output_high(LED); //debug ledini yakar
   enable_interrupts(global);
   enable_interrupts(INT_RDA2);
   enable_interrupts(INT_TIMER2);
   enable_interrupts(INT_TIMER1);
while(true)
   {
      if(data_got==1)
      {
         data_got=0;  
            for(int i=2;i<=10;i++)
            {
               buffer[i]=getc();
            }
            if(buffer[10]==stop_byte)
            {
               check_data();
            }
          clear_interrupt(INT_RDA2);
          enable_interrupts(INT_RDA2);
       }
    }
 }