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dfpga's Introduction

dfpga

An implementation of an FPGA slice entirely in 7400 series discrete logic, and a compiler for a custom HDL dialect for same.

  • discretefpga.brd and discretefpga.sch are the Eagle board and schematic.
  • dhdl.py is the HDL compiler; run it like python dhdl.py infile outfile.
  • *.dhdl files are sample DHDL scripts.

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dfpga's Issues

Question about schematic.

Hi.

Sorry for dummy question, but what is circuit IC6P in schematics good for?
That's the little board beside (bigger) slice board in your photo?
And what are values for C1-C6?

What is Q1-Q8? And what are R1-R8 values?

I tried to find answer inside schematic or in article but without luck.
http://blog.notdot.net/2012/10/Build-your-own-FPGA

What am I overlooking?

Thank you in advance.

What does arduino? :(

Hi Nick.

First of all, thanks for this great project :)

I have a doubt, on the video I see you use an Arduino to load the program, how do you do it? Can you share the program/diagram (If you still have it)? Or at least explain it? :)

And I don't have very clear how to use the switches :/ so, if you can say something about it would be great!

Thanks!

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