devkitPro

open your makefile and see if there is a grit rule for *.png files. it should look something like this:

#---------------------------------------------------------------------------------
%.s %.h : %.png %.grit ...

hey,

I searched for my question, and now i have more. This is my code (main.c):


#include <nds.h>
#include "back.h"

int main(void) {

with background 0 active
videoSetMode(MODE_0_2D | DISPLAY_BG0_ACTIVE);

vramSetBankA(VRAM_A_MAIN_BG);

BGCTRL[0] = BG_TILE_BASE(0) | BG_MAP_BASE(4) | BG ...