Monday, December 8, 2014

ERIC-1: Video Memory Interface

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The ATmega1284P coprocessor of ERIC-1 has been able to output a PAL video signal for some time. As you may know, the coprocessor has a scree...
5 comments:
Sunday, December 7, 2014

ERIC-1: CPU Upgrade

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I recently got a delivery of two brand new W65C02S chips from Coltek UK (£9 for two chips including shipping to Finland, not bad!). Now, if ...
Wednesday, December 3, 2014

ERIC-1: Bitbanging the video signal

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I've been working on video signal generation for my ERIC-1 microcomputer lately. As you may know I built a 8-bit console in the past th...
1 comment:
Saturday, November 29, 2014

ERIC-1: Homebrew Computer

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Everyone seems to be building their 6502-based 80s esque computers nowadays, and it seems to be a lot of fun. Well, I don't want to miss...
13 comments:
Monday, November 24, 2014

Driving a RGB LED with Arduino Uno

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Here's a simple way to drive a RGB LED with Arduino Uno. The microcontroller generates a multiplexed PWM signal in software. The PWM is...
Saturday, January 18, 2014

VIC-20 Flash Memory Programmer Part 1/2

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My first computer was the Commodore VIC-20 which my dad bought me when I was something like 7 years old (thanks dad!). VIC-20 is the predece...
11 comments:
Friday, December 27, 2013

Speed Tester v2.0

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Back in April I made an ATmega328P based  speed and reaction time tester . Since then the game has been tested numerous times on our frien...
28 comments: