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Author Topic: Ben Eater's "World's worst video card" (discrete 7400 ICs to make a VGA signal)  (Read 1122 times)

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Offline sokoloffTopic starter

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Ben Eater's "World's worst video card" (discrete 7400 ICs to make a VGA signal)
« on: July 07, 2019, 08:49:24 pm »


Just to the point of displaying a valid HSYNC and VSYNC, so it's only a blank screen now.
« Last Edit: July 07, 2019, 09:45:24 pm by sokoloff »
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Offline wilfred

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Re: Ben Eater's "World's worst video card" (discrete 7400 ICs to make a VGA signal)
« Reply #1 on: July 08, 2019, 12:47:24 am »
I'm looking forward to the next video. When it can read memory and display useful pixels.

A similar project is published here. http://www.pyroelectro.com/projects/masochists_video_card/

Circuit Cellar magazine Nov 2004 had an article about implementing a VGA controller by Enoch Hwang.
As I recall it had an interesting idea about where to set the zero count to simplify the logic. Worth a read even if I mis-remember. http://faculty.lasierra.edu/~ehwang/public/mypublications/VGA%20Monitor%20Controller.pdf
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