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All Projects of Pavel

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Sub-project where the assembly language is described; the assembler program progress updates are posted here

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Assembly Language for ECM-16/TTL homebrew CPU

All the instructions laid out in systematic manner

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Instruction Set for ECM-16/TTL homebrew cpu

This is a proof-of-concept sub-project spun off from my main homebrew CPU project.

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Pilot-1 CPU (ECM-16/TTL partial build)

Prototyping some processor functions using logical gates made of discrete transistors, resistors and diodes

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Simple ALU from discrete components

Simple circuit for blinking lights

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Christmas lights

The apparatus allows to take spectra of light sources in range from ~400 to ~1000 nm

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DIY Optical spectrometer / spectrograph

16 bit Computer made from ttl logic chips

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ECM-16/TTL homebrew computer

ROM module, made from switch banks, diodes, handful of TTL chips; organized as 16 words of 16 bits each

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256-bit Programmable ROM

Little handy spectroscope

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Portable DVD spectroscope

Here are to be some experiments with crt tv.

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Messing around with b&w crt tv

It is subproject for the one devoted to dispay. Here I will focus on memory elements.

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Registers and flip-flops

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Multiplexed 7-segment display

4-bit counter hooked up to 7-segment display showing succession of hexadecimal digits

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Simple counter/clock

Built using resistor-transistor logic

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2 bit decoder

Projects Pavel contributes to

Where DIY DIP/SSI/MSI CPU makers meet and discuss other TLA (three letters acronyms)

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Hackaday TTLers

yann-guidon-ygdesYann Guidon / YGDES