How to display many tiles on the screen
Posted: Thu Dec 22, 2022 8:25 am
Hi All
I have connected Gameduino 2 display to stm32f407 discovery board.
I am able to write text and bitmaps on the display, but I experience issue when trying to add more than 3 bitmaps at the time.
After some try and error it seems that I need to add some delay between each of the commands in the command list, otherwise nothing would
be displayed.
My plan is to try to make video game, and I am thinking on creating the background picture by using some tiles.
I have used EVE Asset Builder tool to convert 16x16.png file to an array and thereafter I have included array in my program and uploaded it to GRAM.
SPI connection on the discovery board is configured to 8MHz.
Bellow is example of the program which I have shortened in this case, but in reality I am sending many more BITMAP_SOURCE and VERTEX2F commands:
My impression is following, the more BITMAP_SOURCE and VERTEX2F commands I include in DrawBitmap3() function, the more delay I need to add in between.
Probably there is some other way to do this but I have not understand it yet.
I have attached 2 pictures. One is the tilemap which is converted to an array and another is how my display looks so far.
I hope that somebody might have some good suggestions on how this could be done.
Thanks in advance.
I have connected Gameduino 2 display to stm32f407 discovery board.
I am able to write text and bitmaps on the display, but I experience issue when trying to add more than 3 bitmaps at the time.
After some try and error it seems that I need to add some delay between each of the commands in the command list, otherwise nothing would
be displayed.
My plan is to try to make video game, and I am thinking on creating the background picture by using some tiles.
I have used EVE Asset Builder tool to convert 16x16.png file to an array and thereafter I have included array in my program and uploaded it to GRAM.
SPI connection on the discovery board is configured to 8MHz.
Bellow is example of the program which I have shortened in this case, but in reality I am sending many more BITMAP_SOURCE and VERTEX2F commands:
My impression is following, the more BITMAP_SOURCE and VERTEX2F commands I include in DrawBitmap3() function, the more delay I need to add in between.
Probably there is some other way to do this but I have not understand it yet.
I have attached 2 pictures. One is the tilemap which is converted to an array and another is how my display looks so far.
I hope that somebody might have some good suggestions on how this could be done.
Thanks in advance.
Code: Select all
void DrawBitmap3()
{
API_LIB_WriteDataRAMG(Tiles16x67, 34304, 0);
delay3();
cmd(CMD_DLSTART);
cmd(BITMAP_HANDLE(0));
cmd(BITMAP_SOURCE(0));
cmd(BITMAP_LAYOUT(ARGB1555, 32, 16));
cmd(BITMAP_SIZE(NEAREST, BORDER, BORDER, 16,1072));
cmd(CLEAR_COLOR_RGB(0,0,0));
cmd(CLEAR(1,1,1));
cmd(BEGIN(BITMAPS));
cmd(BITMAP_SOURCE(14336));
cmd(VERTEX2F(0, 0));
cmd(BITMAP_SOURCE(14848));
cmd(VERTEX2F(256, 0));
delay3();
cmd(BITMAP_SOURCE(15360));
cmd(VERTEX2F(512, 0));
delay3();
cmd(BITMAP_SOURCE(15872));
cmd(VERTEX2F(0, 256));
delay3();
cmd(BITMAP_SOURCE(16384));
cmd(VERTEX2F(256, 256));
delay3();
cmd(BITMAP_SOURCE(16896));
cmd(VERTEX2F(512, 256));
delay3();
cmd(BITMAP_SOURCE(17408));
cmd(VERTEX2F(0, 512));
.
.
.
.
delay3();
delay3();
cmd(BITMAP_SOURCE(15360));
cmd(VERTEX2F(3840, 3328));
delay3();
delay3();
cmd(BITMAP_SOURCE(17408));
cmd(VERTEX2F(3584, 3584));
.
.
.
delay3();
delay3();
delay3();
cmd(BITMAP_SOURCE(17920));
cmd(VERTEX2F(4352, 3840));
delay3();
delay3();
delay3();
cmd(BITMAP_SOURCE(18432));
cmd(VERTEX2F(4608, 3840));
cmd(END());
cmd(DISPLAY());
cmd(CMD_SWAP);
}