How to use nios ii c code to make LCD panel on DE2-115 show special characters?

Hello everyone,

I'm working on a project from terasic demo named DE2_115_SD_Card_Audio_Player.

It uses c code to control LCD display as below.

static FILE *fp=0;

bool LCD_TextOut(char *pText){

if (!fp)

return FALSE;

fwrite(pText, strlen(pText), 1, fp);

return TRUE;

}

If you type LCD_TextOut("Hello World\n\n"),

then the LCD will show "Hello World" on the first line.

Now I have a problem that I want to make the LCD show special characters

such as Japnese characters which can't be typed in c code but are supported by LCD(HD44780).