[Lancelot] VGA controller for displaying RGB pixels
Derek Simmons
DerekSimmons at frontiernet.net
Mon Mar 7 12:54:38 PST 2005
Date: Mon, 07 Mar 2005 11:50:53 -0800
From: "H. Peter Anvin" <hpa at zytor.com>
Subject: Re: [Lancelot] VGA controller for displaying RGB pixels
To: Wei Mark Fang <gjf01 at yahoo.com>
Cc: lancelot at zytor.com
Message-ID: <422CB09D.4060601 at zytor.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Wei Mark Fang wrote:
> Does anyone have a VGA controller design for
> displaying RGB pixels? That is one that takes an input
> of 24 bit value per pixel and outputs it through the
> DAC to monitor.
>
> I am trying get it to test on NIOS II processor, on a
> stratix board.
While there isn't a lot documentation for the reference design, have you
taken a close look at the code? When you do, it would be handy to have a
copy of the TI data sheet for the video DAC handy. It is a pretty robust but
straight forward implementation for a frame buffer device. If you need more
reference material, on XESS's web site (http://www.xess.com
<http://www.xess.com/> ) there is a reference design (for a Xilinx device)
with supporting documentation.
Derek
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