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[PIC] warning 359 and lcd showing garbage value while simulating in proteus

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Ajay Rai

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Here is the code for pic18f4580


Code C - [expand]
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#include <stdio.h>
#include <stdlib.h>
#include<pic18f4580.h>
/*
#define RS RB6
#define EN RB7
#define D0 RC0
#define D1 RC1
#define D2 RC2
#define D3 RC3
#define D4 RC4
#define D5 RC5
#define D6 RC6
#define D7 RC7
*/
 
 
#include "lcdtest2.h"
 
 
 
void main()
{
 int i;
 //char str;
  TRISB = 0x00;
  TRISC = 0x00;
 
  Lcd8_Init();
  while(1)
  {
    Lcd8_Set_Cursor(1,1);
    //str="ecosense";
    //Lcd8_Write_String(str);
    Lcd8_Write_String("ecosense");
    for(i=0;i<15;i++)
    {
      MSDelay(100);
      Lcd8_Shift_Left();
    }
    for(i=0;i<15;i++)
    {
      MSDelay(100);
      Lcd8_Shift_Right();
    }
    Lcd8_Clear();
    Lcd8_Set_Cursor(2,1);
    Lcd8_Write_Char('e');
    Lcd8_Write_Char('S');
    MSDelay(2000);
  }
}
 
 
 
here is the header file:
 
#ifndef LCDTEST2_H
#define LCDTEST2_H
#include<string.h>
#ifdef  __cplusplus
extern "C" {
#endif
 
 
 
 
#ifdef  __cplusplus
}
#endif
 
#endif  /* LCDTEST2_H */
 
#ifndef D0
#define D0 PORTBbits.RB0
#define D1 PORTBbits.RB1
#define D2 PORTBbits.RB2
#define D3 PORTBbits.RB3
#define D4 PORTBbits.RB4
#define D5 PORTBbits.RB5
#define D6 PORTBbits.RB6
#define D7 PORTBbits.RB7
#endif
 
#define RS PORTCbits.RC0
#define EN PORTCbits.RC1
//LCD 8 Bit Interfacing Functions
void MSDelay(unsigned int itime)
{
    int i,j;
    for(i=0;i<itime;i++)
        for(j=0;j<165;j++);
 
}
void Lcd8_Port(char a)
{
    if(a & 1)
        D0= 1;
    else 
        D0= 0;
    
    if(a & 2)
        D1= 1;
    else
        D1= 0;
    
    if(a & 4)
        D2= 1;
    else
        D2= 0;
    
    if(a & 8)
        D3= 1;
    else
        D3= 0;
    
    if(a & 16)
        D4= 1;
    else
        D4= 0;
 
    if(a & 32)
        D5= 1;
    else
        D5= 0;
    
    if(a & 64)
        D6= 1;
    else 
        D6= 0;
    
    if(a & 128)
        D7= 1;
    else
        D7= 0;
}
void Lcd8_Cmd(char a)
{ 
  RS= 0;             // => RS = 0
  Lcd8_Port(a);             //Data transfer
  EN = 1;             // => E = 1
  MSDelay(5);
  EN = 0;             // => E = 0
}
 
Lcd8_Clear()
{
      Lcd8_Cmd(1);
}
 
void Lcd8_Set_Cursor(char a, char b)
{
    if(a == 1)
      Lcd8_Cmd(0x80 + b);
    else if(a == 2)
        Lcd8_Cmd(0xC0 + b);
}
 
void Lcd8_Init()
{
    Lcd8_Port(0x00);
    RS = 0;
    MSDelay(25);
    ///////////// Reset process from datasheet /////////
  Lcd8_Cmd(0x30);
MSDelay(5);
  Lcd8_Cmd(0x30);
    MSDelay(15);
  Lcd8_Cmd(0x30);
  /////////////////////////////////////////////////////
  Lcd8_Cmd(0x38);    //function set
  Lcd8_Cmd(0x0C);    //display on,cursor off,blink off
  Lcd8_Cmd(0x01);    //clear display
  Lcd8_Cmd(0x06);    //entry mode, set increment
}
 
void Lcd8_Write_Char(char a)
{
   RS= 1;             // => RS = 1
   Lcd8_Port(a);             //Data transfer
   EN = 1;             // => E = 1
 MSDelay(4);
   EN = 0;             // => E = 04
}
 
void Lcd8_Write_String(char *a)
{
    int i;
    for(i=0;a[i]!='\0';i++)
     Lcd8_Write_Char(a[i]);
}
 
void Lcd8_Shift_Right()
{
    Lcd8_Cmd(0x1C);
}
 
void Lcd8_Shift_Left()
{
    Lcd8_Cmd(0x18);
}
//End LCD 8 Bit Interfacing Functions




Warning:
lcdtest2.c:42: warning: (359) illegal conversion between pointer types
 
Last edited by a moderator:

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