XuLABee - The 1980's Microbee Home Computer Reimagined with an FPGA

Posted by: Dave Vandenbout in Blog Post 5 years, 4 months ago

the 1980's Microbee home computer I ran across a blog by Brad Robinson about his efforts to build the 1980's Microbee home computer using FPGAs. One implementation uses a XuLA2 board and a custom PCB to fit the Microbee into a small case that attaches to a keyboard and monitor. All the steps in developing the circuitry and FPGA code are clearly documented in a series of blog posts. <<more...>>


Teaching Programmable Logic to Programmers

Posted by: Dave Vandenbout in Blog Post 5 years, 4 months ago

PyOhio and MyHDL logos Teaching programmers how to use programmable logic like FPGAs: you would think that was easy, right? Chris Felton recently gave a workshop at PyOhio to do just that. The intent was to help programmers learn FPGA programming techniques using the MyHDL Python package. To support his workshop, Chris put together a complete hardware and software setup for the programmers that consisted of: <<more...>>

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VirtualBoy TV-mod Using a XuLA

Posted by: Dave Vandenbout in Blog Post 5 years, 4 months ago

VirtualBoy scanned LED array There's a nice write-up over on the Furrtek site about modding the 1990's-era VirtualBoy table-top video game console. The VB provides a 3D gaming experience using two scanned LED arrays, one for each eye. A XuLA-200 was inserted into the VB's case in order to generate VGA signals so the game action could be seen on an external monitor. <<more...>>


Taking the "Ahg!" out of making parts in Eagle.

Posted by: Dave Vandenbout in Blog Post 5 years, 12 months ago

A Perl Library for Making Eagle Parts


Making footprints and schematic symbols are some of the more onerous parts of using Eagle. But most ICs are pretty similar: they're either DIPs, some type of leaded SMD, or BGAs. So I made a Perl library that lets me enter a simple text description of a chip and it will generate a footprint and symbol for me and link them together into a complete device.

As an example, consider the Microchip MCP48X1 DAC chips. Here's their pinout: <<more...>>


"Phew! Just made it!"

Posted by: Dave Vandenbout in Blog Post 6 years ago

I announced chapter 6 of "FPGAs?! Now What?" in March of 2012. Today, I'm "proud" to release chapter 7. I got it done in less than a year since the last one. Yay me! <<more...>>

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