Compiling a C program for a pic microcontroller - error message - c

Question

I have a C program that I am trying to put on my pic but I get the error "3.17 can't open include file "main.h": No such file or directory". This is my first time ever attempting to program a pic.
Here is the program I am trying to put on it.
#include <htc.h>
#include <stdio.h>
#include "main.h"
__CONFIG(FOSC_INTOSC & WDTE_OFF & PWRTE_OFF & MCLRE_ON & CP_OFF & CPD_OFF & BOREN_OFF & CLKOUTEN_OFF & IESO_OFF & FCMEN_OFF);
__CONFIG(WRT_OFF & PLLEN_OFF & STVREN_OFF & BORV_HI & LVP_OFF);
#define _XTAL_FREQ 4000000
int main()
{
int t = 0;
char outStr[8];
char ch;
init();
Lcd_PutStr(0, 0, "Option 1");
Lcd_PutStr(1, 0, "Spec Analyzer");
while (1)
{
// do stuff here
}
}
int init()
{
// Hardware
OSCCON = 0x6A; // 4 MHz oscillator
PORTA = 0; // Clear Port A
LATA = 0;
PORTB = 0; // Clear Port B
LATB = 0;
PORTC = 0; // Clear Port C
LATC = 0;
ANSELA = 0; // Set Port A to digital
ANSELB = 0; // Set Port B to digital
ANSELC = 0; // Set Port C to digital
TRISB = 0; // Set port B to output
TRISC = 0; // Set port C to output
// LCD display
Lcd_Init();
return 0;
}
void ENPulse()
{
LATC |= 0x20;
__delay_us(1);
LATC &= 0xdf;
}
void Lcd_Init()
{
LATC = 0;
__delay_ms(40);
LATC = 0x03;
ENPulse();
__delay_us(37);
Lcd_Cmd(0x28);
__delay_us(37);
Lcd_Cmd(0x28);
__delay_us(37);
Lcd_Cmd(0x0C);
__delay_ms(2);
Lcd_Cmd(0x01);
__delay_us(37);
}
void Lcd_Cmd(byte cmd)
{
LATC = cmd >> 4;
ENPulse();
LATC = cmd & 0x0F; // clear RS (LATC,4)
ENPulse();
__delay_us(100);
}
void Lcd_Data(byte data)
{
LATC = (data >> 4) | 0x10; // set RS (LATC,4)
ENPulse();
LATC = (data & 0x0F) | 0x10; // set RS (LATC,4)
ENPulse();
__delay_us(100);
}
void Lcd_PutStr(int row, int col, char* str)
{
int pos;
// use row and column=-1 for no positioning, i.e. position where last ended
if (row >= 0 && col >= 0)
{
if (row > 0)
row = 0x40; // row 1
else
row = 0; // row 0
pos = row | col | 0x80; // 0x80 is cmd for positioning cursor
Lcd_Cmd(pos);
}
while (*str)
{
Lcd_Data(*str);
str++;
}
}
I am using MPLab and Hi-Tech C with a Pickit3. I based this code off of a sample given to me. I do not know what the purpose of the main.h file is. Any help is appreciated.

Answer 1

After reviewing your errors, you may be able to run the code without main.h. It looks like main.h mostly prototypes the functions at the bottom of the file. Try putting this code between the main and the #define:
int init();
void ENPulse();
void Lcd_Init();
void Lcd_Cmd(byte cmd);
void Lcd_Data(byte data);
void Lcd_PutStr(int row, int col, char* str);
This should at lest reduce most of your errors. It may fix it completely. The idea is that when the compiler first encounters theses functions it doesn't know what they are and it throws errors before it can find them. If there are still errors let me know and I'll try and help more.

Answer 2

Try this code:
#include <htc.h>
#include <stdio.h>
//#include "main.h"
__CONFIG(FOSC_INTOSC & WDTE_OFF & PWRTE_OFF & MCLRE_ON & CP_OFF & CPD_OFF & BOREN_OFF & CLKOUTEN_OFF & IESO_OFF & FCMEN_OFF);
__CONFIG(WRT_OFF & PLLEN_OFF & STVREN_OFF & BORV_HI & LVP_OFF);
#define _XTAL_FREQ 4000000
int init()
{
// Hardware
OSCCON = 0x6A; // 4 MHz oscillator
PORTA = 0; // Clear Port A
LATA = 0;
PORTB = 0; // Clear Port B
LATB = 0;
PORTC = 0; // Clear Port C
LATC = 0;
ANSELA = 0; // Set Port A to digital
ANSELB = 0; // Set Port B to digital
ANSELC = 0; // Set Port C to digital
TRISB = 0; // Set port B to output
TRISC = 0; // Set port C to output
// LCD display
Lcd_Init();
return 0;
}
void ENPulse()
{
LATC |= 0x20;
__delay_us(1);
LATC &= 0xdf;
}
void Lcd_Init()
{
LATC = 0;
__delay_ms(40);
LATC = 0x03;
ENPulse();
__delay_us(37);
Lcd_Cmd(0x28);
__delay_us(37);
Lcd_Cmd(0x28);
__delay_us(37);
Lcd_Cmd(0x0C);
__delay_ms(2);
Lcd_Cmd(0x01);
__delay_us(37);
}
void Lcd_Cmd(byte cmd)
{
LATC = cmd >> 4;
ENPulse();
LATC = cmd & 0x0F; // clear RS (LATC,4)
ENPulse();
__delay_us(100);
}
void Lcd_Data(byte data)
{
LATC = (data >> 4) | 0x10; // set RS (LATC,4)
ENPulse();
LATC = (data & 0x0F) | 0x10; // set RS (LATC,4)
ENPulse();
__delay_us(100);
}
void Lcd_PutStr(int row, int col, char* str)
{
int pos;
// use row and column=-1 for no positioning, i.e. position where last ended
if (row >= 0 && col >= 0)
{
if (row > 0)
row = 0x40; // row 1
else
row = 0; // row 0
pos = row | col | 0x80; // 0x80 is cmd for positioning cursor
Lcd_Cmd(pos);
}
while (*str)
{
Lcd_Data(*str);
str++;
}
}
int main()
{
int t = 0;
char outStr[8];
char ch;
init();
Lcd_PutStr(0, 0, "Option 1");
Lcd_PutStr(1, 0, "Spec Analyzer");
while (1)
{
// do stuff here
}
}