I have a SOPC set up with a CPU Processor, On-Chip memory, JTAG UART, and Character LCD. The clock is 50 Mhz.
LCD_E_from_the_lcd_0 --> lcd_en [PIN_AC24] (set OUTPUT)
LCD_RS_from_the_lcd_0 --> lcd_d_cn [PIN_D27] (set OUTPUT)
LCD_RW_from_the_lcd_0 --> lcd_wen [PIN_AC4] (set OUTPUT)
LCD_data --> lcd_data[7..0] (set INOUT)
I do NOT have "Reduced device drivers" checked, because the LCD drivers do not provide small drivers.
My code in NIOS II is :
#include <stdio.h>
#include <system.h>
#define ESC_TOP_LEFT "[1;0H"
#define ESC_BOTTOM_LEFT "[2;0H"
#define LCD_CLR "[2J"
#define LCD_CLR_LINE "[K"
static unsignedchar ESC = 0x1b;
void lcd_hello(
void)
{
FILE* LCD;
LCD =
fopen (LCD_0_NAME, "w");
if(LCD == NULL) {
printf("LCD open failed\n");
}
else {
printf("LCD open succeeded\n");
fprintf(LCD, "%c%s", ESC, LCD_CLR); // Clears LCD
fprintf(LCD, "LCD demo using\n");
fprintf(LCD, "
altera HAL in C");
}
fclose(LCD);
}
int main (
void){
LCD_hello();
while(1);
return 0;
}
Is my code wrong? My kit (LCD) does't work. Thank u
