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Digital Circuit Design in FPGA with SVGA interface
von Cristian Ignat (Guest)

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Hi,

I am a contestant of digilent contest, and I need a feedback for my 
project.

A short description is:

This project implements a digital circuit design tool, as the name says, 
in FPGA. The FPGA board is connected directly on a monitor and a mouse. 
The user should use this project to create a digital schematic, and he 
could check the output signals on a logic analyzer which is included in 
the project.

Here we have two working modes: directly mode, using a mouse which is 
connected directly on FPGA board, and second mode, using PC. In second 
mode, user should use Xilinx ISE to create a schematic, and after 
executing a command, some data are transferred to FPGA via RS232 
communication and the schematic is created automatically.

FPGA part is implemented in VHDL and in second mode, the data prom 
Xilinx ISE schematic is processed with Visual Basic Script.

You can watch on a example movie on the link:
https://www.youtube.com/watch?v=G0QwzR-WGa0

Thank you

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Re: Digital Circuit Design in FPGA with SVGA interface
von fgpa user 53642 (Guest)

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So you are producing graphics on the VGA, which represents Logical 
ciruits? Funny idea, but what is it for? Usually this very fast 
VGA-strategy makes only sense, if there is high movement in the Image 
just like Scrolling or 3D-image Rotation. Whith static Images like 
electronic schematics this is of no benefit or did I miss something?

In how far can the electronic circuit be manipulated? Can I place 
something different than shown in the Screen?

From the complexity of the Task, you did a godd work - but from the 
meaing und usability I'd rate it not so high.

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Re: Digital Circuit Design in FPGA with SVGA interface
von Cristian Ignat (Guest)

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This is a real time implementation. This is an easy way to check a 
schematic and to see the result at once. I don't like to use the 
simulation programs, and this project can help the students to learn 
more easier.

On the monitor, for this project only the schematic and the output 
signals can be displayed.

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