NIOS II on DE0, displaying on LCD

Hi everyone,

I am trying to get some message displayed on LCD using DE0 board.

I had a look at the Pin Assignment tool and all pins are assigned correctly.

All of the files included in .c file are within project directory.

This is my main.c code:

#include <stdio.h>#include "system.h"#include "altera_avalon_pio_regs.h"#include "altera_avalon_lcd_16207_regs.h"#include "altera_avalon_lcd_16207.h"int main(){    char ch = '\0';    FILE *lcd_d = 0;    lcd_d = fopen(LCD_DISPLAY_NAME, "w");    printf("LCD & Keypad Test!\n");    //altera_avalon_lcd_16207_init(LCD_DISPLAY_BASE);    printf("Address of LCD: %s\n", LCD_DISPLAY_NAME);    while(1){        ch = kbd_getc();        usleep(9);        if(ch != 0){            printf("%c ", ch);            fprintf(lcd_d, "Hello LCD");        }    }    return (0); }

The code here is from another topic:

http://alteraforum.com/forum/showthread.php?t=32164

When I try to rebuild the project I get errors:

'LCD_DISPLAY NAME' undeclared

and warnings:

implicit declaration of function 'kdb_getc'

implicit declaration of function 'usleep'

Could someone please offer some advice how do I go about this problem?

Are there specific commands that need to be used for DE0 board?

Many thanks