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Making Boards

Bad Assumption When I first started the F18A project I figured getting a minimal FPGA board to run it on would be easy.  After all, I bought my fully loaded devboard for about $150, and the only thing...

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Toobin’ Arcade Game

I recently restored a Toobin’ arcade coin-operated (coinop) video game.  Operators have a habit of doing some of the most awful things to games, so I had to undo some damage and stupid modifications,...

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F18A PRE-ORDERS Open!

Update: March 19, 2012 I learned over the weekend that ceramic SMD capacitors cannot be reliably soldered using a soldering iron.  It seems the ceramic material expands at a different rate than the...

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F18A Features

Since the F18A is now shipping (finally!), and the feature list is stable (heh, yeah right…) I need to get my website updated, and eventually write some documentation so people can use the enhance...

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Mounting the F18A VGA Connector

Mounting the F18A VGA connector to your system case is *highly* recommended!  The F18A is not designed to withstand any pulling on the VGA cable and requires good strain relief.  One good “tug” can...

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F18A Programming Introduction

1.0 Introduction Programming the F18A is very similar to the original 9918A VDP.  Because the F18A is a pin-compatible replacement for the 9918A, the host system interface and all of the 9918A core...

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F18A Pinout

Anyone interested in using the F18A in their own computer or microcontroller system, please start with the TMS9918A datasheet since the electrical interface, host CPU interface, and timing...

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F18A In-System Update

Thanks to the help of several fellow 99/4A enthusiasts (Rasmus and Tursi), I’m happy to announce an in-system software update for the F18A firmware. Currently the update program only runs on a 99/4A...

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F18A Firmware Update

After a year of work I’m happy to announce the release of the F18A V1.6 Firmware. There have been many changes (see below), most of which were driven by suggestions, wishes, and feedback. The main...

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F18A MK2

F18A MK2 Isometric Introduction The F18A MK2 is the next iteration of the 9918A VDP replacement project I started back in 2011. When I first set out to make the F18A one of my primary goals was to have...

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