| All | Electronics | Software | Security | Personal | Scouting |
Sun, 04 Feb 2007
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After what seems like forever, I have finally obtained all of the silicon and associated hardware to build my very own ELF computer. What is an ELF you may ask - Well - it is a single board trainer that first appeared ina magazine called "Practical Electronics" in about 1976. It is based on a RCA microprocessor called an 1802, has about 256 bytes of memory, and uses switches to manipulate the address and data busses to load software. I first saw one about 15 years ago, and decided that it simpy wasn't practical to obtain the parts to build one - Well, thanks to the power of e-bay I obtained the hex displays, memory and CPU. A bit of scrounging around in my various parts bins nettwe me the rest of the components I needed, and a couple of evenings of effort later, and - Here it is. My first program was a program to turn on and off the 'Q' LED based on the state of the input button - Gosh, Wow - Gee wizz. Hmmm - Can I get an OO language for it
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Projects - Some of my projects
DRJ-Consulting - A site focused on saving energy. Dougs Word Clocks - I make my own clock that tells the time using words. we Just Dont Talk About That - A site for sharing funny family stories. Megan's weblog Email me at doug@stillhq.com |
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