devkitPro

Posted: **Sun Oct 17, 2010 12:12 pm**

Im using a function in my game that displays a bitmap as a background.

void showBackground() {
    dmaCopyHalfWords(DMA_CHANNEL,
                     reimuBitmap, /* This variable is generated for us by
                                       * grit. */
                     (uint16 *)BG_BMP_RAM(0), /* Our address for main
                                               * background 3 */
                    reimuBitmapLen); /* This length (in bytes) is generated
                                           * from grit. */
}

But when I try to compile I get DMA_CHANNEL undefined.
The headers that I have include are:

#include <nds.h>
#include <stdio.h>
#include <nds/dma.h>

Any ideas why this is happening?

Posted: **Sun Oct 17, 2010 11:14 pm**

DMA_CHANNEL is not defined anywhere.

You need to supply a number between 0 and 3 IIRC for the DMA_CHANNEL number.

devkitPro

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