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Samuel A. Falvo II

A software engineer by day, an open source computer engineer who feels computing is more complex than it needs to be by night.

California
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28 Followers
38 Following
4 Projects
130 Likes
samuel-a-falvo-ii
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This user joined on 03/06/2016.

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Commodore 8568-inspired (and mostly compatible) video core for driving VGA-type displays.
Project Owner Contributor

VDC-II

samuel-a-falvo-iiSamuel A. Falvo II

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The Kestrel-2DX, a specific embodiment of the Kestrel Computer Project (also on Hackaday), will help with new hardware bring-up.
Project Owner Contributor

Kestrel-2DX

samuel-a-falvo-iiSamuel A. Falvo II

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The Kestrel project is all about freedom of computing and the freedom of learning using a completely open hardware and software design.
Project Owner Contributor

Kestrel Computer Project

samuel-a-falvo-iiSamuel A. Falvo II

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Backbone is my proposal for an off-chip, Wishbone-inspired backplane interconnect that supports multiple bus masters.
Project Owner Contributor

Backbone Bus

samuel-a-falvo-iiSamuel A. Falvo II

Things I've Built

Kestrel-3 Emulator

My first "real" computer. It's powered by a simple, 64-bit RISC-V processor comparable to a low-end ColdFire in overall capability. It has 16MB of RAM, and a higher resolution video display. Otherwise, identical to Kestrel-2. (Circa 2015)

Kestrel-2

My first FPGA-based design, this homebrew computer featured 640x200 bitmapped graphics, 32KB of application RAM, and a 16-bit stack CPU based on the Steamer 16 architecture. (Circa 2011)

Kestrel-1

4MHz, W65C816-based SBC build on Radio Shack breadboards as a proof of concept. 32KB of RAM, 1 VIA chip for I/O. No ROM; IPL happened through a PC which uploaded system software to RAM via a serial DMA channel. (Circa 2007)

Unsuitable

A blog engine written in ANSI Forth, implemented to more to prove a point than to be a production system. Nonetheless, it ran my blog for several years before I finally switched over to Github.

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High-Performance Computing for Everyone
Project Owner Contributor

RAIN Mark II Supercomputer Trainer

jasongullicksonjason.gullickson

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A 16 bit computer with 20 address bits and video display, from just a few TTL and memory chips. Instructions resemble 68000 / PDP-11.
Project Owner Contributor

Kobold - retro TTL computer

roelhroelh

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I am building a laptop with a W65C02, lots of memory, SID-sound, decent graphics and a filesystem.
Project Owner Contributor

PZ1 6502 laptop

adamklotblixtadam.klotblixt

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Tiny board with a BIG FPGA. SD card, 64mbit DDR RAM, ECP5 FPGA, 64mbit flash, and micro USB. Do more with up to 45k LUTs.
Project Owner Contributor

TinyFPGA E-Series

luke-valentyLuke Valenty

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Using a LED/LDR pair to form inverting Photonic logic gates. The entire Boolean logic set handled by resistors and diodes! Who'd'a thunk
Project Owner Contributor

LIGHT LOGIC - HIC SVNT DRACONES

dr-cockroachDr. Cockroach

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Forth cross compiler for tiny microcontrollers
Project Owner Contributor

Microcontroller Forth cross compiler

lars-brinkhoffLars Brinkhoff

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RAIN Personal Supercomputer Portable
Project Owner Contributor

RAIN PSP

jasongullicksonjason.gullickson

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Add X to Y and Y to X, says the song. And carry on.
Project Owner Contributor

PEAC Pisano with End-Around Carry algorithm

yann-guidon-ygdesYann Guidon / YGDES

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A full ALU, capable of ADD, SUB and all logic functions, with only 12 transistors
Project Owner Contributor

ALU in DCTL technology

roelhroelh

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CPU-neutral, professionally designed, industrial strength. Design slave boards that work with any processor.
Project Owner Contributor

STEbus

keithKeith

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Digital Information Processor - an 8-bit computer made out of 7400 series logic and some EEPROMs.
Project Owner Contributor

DIP-8 TTL Computer

kaimackaimac

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Using graphite, powders, pencils and other common household chemicals to create transistors, resistors and possibly caps.
Project Owner Contributor

Graphite Circuitry Experiments

scottScott

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Reverse engineering approach to reuse LVDS LCD panel with use of the FPGA
Project Owner Contributor

LVDS LCD Hacking with FPGA

martin-hubMartin Hub

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Here is a proof-of-concept for DVI / HDMI output implemented on an iCE40 FPGA
Project Owner Contributor

DVI / HDMI Pmod for an iCE40 FPGA

dan-osheaDan O'Shea

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An m68k homebrew with an FPGA acting as a VGA graphics controller
Project Owner Contributor

Diapason : m68k homebrew with FPGA graphics

carson-herringtonCarson Herrington

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Experiment to create a minimal 4-bit CPU that can do something fun
Project Owner Contributor

Tetra - 4-bit CPU

kaimackaimac

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Collecting ideas for building a computer to be the best an early 80s 8-bit home computer could have been.
Project Owner Contributor

Ultimate retrocomputer

julianJulian

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One input, one output, 2 microcontrollers. How fast can I get things???
Project Owner Contributor

2-pin SuperSerial

dylan-brophyDylan Brophy

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roelh wrote 04/16/2019 at 09:01 • point

Hello Samuel, thanks for following me and for liking my new project, #Kobold retro TTL computer !

  Are you sure? yes | no

Dr. Cockroach wrote 02/19/2019 at 18:39 • point

Good afternoon and thank you for the like and follow of #Light Logic :-)

  Are you sure? yes | no

Yann Guidon / YGDES wrote 04/14/2016 at 18:06 • point

Good luck and have fun with your projects !

  Are you sure? yes | no

Michael A. Morris wrote 03/25/2016 at 17:34 • point

Thanks for the skull. Glad to see your involvement here. Look forward to following your projects here and elsewhere.

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