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Altera_Forum's avatar
Altera_Forum
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17 years ago

DE1 sopc VGA controller

Has anyone gotten the VGA IP core working in SOPC for the DE1 board?

I can get the monitor to recognize the signal but looks like I am just getting color noise.

I am using the pixel mode.

some odd things I noticed/questions:

1)in sopc vga core list max resolution as 320x240, monitor sees 640x480

2) documentation seems to be written for De2 board. Should the 25Mhz VGA clk be 180deg phase shifted from the 50Mhz avalon_pixel_slave Port?

thanks for any help (or a working example project ;) ) would be great

Thanks

travis

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hello. Have you got any success with VGA controller. I'd like to try myself too, can you share project or mail to ilya_mailsign_xdevs.com?

    Thanks
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Attached is the vga controller controller from terasic for the de1 board. Just add it to your sopc system.

    I couldn't get it to display properly.. I have the nios putting a red/green/blue testpattern starting at line 0, yet instead it gets displayed around a third of the screen down! I tried 640x480 25Mhz, and 800x600 40mhz, with no luck.

    If anyone gets it working please post how you did it!!
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    You have attached is the vga controller controller from terasic for the de1 board.I couldn't get it to display properly.. I have the nios putting a red/green/blue test pattern starting at line 0.I am agree with you.