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Altera_Forum's avatar
Altera_Forum
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18 years ago

DE2 board VGA Dispaly

Hello All,

I am trying to use the board's SRAM to store an image and dispaly it on the screen.

I designed a project using QuartusII and was able to manage the

VGA dispaly timing. I used a reference design from John Loomis Webpage.

http://www.johnloomis.org/digitallab/vgalab/vgalab3/vgalab3.html which

is very helpful and nice. However, I am having a problem in dowloading the

raw image file to the SRAM. My question is:

How can I get a typical 640 X 480 bitmap image to be stored in the SRAM?

I tried to use Terasic ImgConv, but it doesn't work :(

I appricate your help.

Thanks

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  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    Hello thanks for answering, actually i have a code that i found on rockets boards "VIP camera", it works fine. I tryed to add an LCD to whatch the video output but i couldn´t. I´m new on video processing and i got a new more question: do you know how can i get a image frame capture or how can i get access to the RAM memory and extract an image? Thanks a lot.

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    Regarding access, I have not done this, but I would imagine you probably need to write a device driver or use a device driver (like maybe what is in my-first_hps-fpga).

    Which lcd are you using? The Ardunio ones typically use a spi interface, but maybe you are going Benheck style and connecting something you salvaged.