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PICO-56 - A 6502 + TMS9918 Retro Computer on a Raspberry Pi Pico
Schrapel Nov 14,2023
My HBC-56, a 65C02/TMS9918A homebrew computer on a backplane, fully emulated on a Raspberry Pi Pico.Emulating the following HBC-56 hardware65C02 CPU65C22 VIATMS9918A VDPDual AY-3-8910 PSGsDual NES controller inputsPS/2 keyboard input96KB Banked RAM/ROMMaking use of my various emulation libraries (and more):vrEmu6502 - 6502/65C02 CPU emulation library (C99)vrEmu6522 - 6522/65C22 VIA emulation library (C99)vrEmuTms9918 - TMS9918A/TMS9929A VDP emulation library (C99)Full source ...
Pico 6502 TMS9918
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MOS 8501 CPU replacement
Mantione Oct 31,2023
The 6502to8501 is a device that allows you to use a 6502 CPU in your Commodore TED series computer, it allows you to bring a dead computer back to life. The 8501 CPU in Commodore TED computers has an extremely high failure rate and therefore, replacements are often a necessity to use these classic computers. The device is an adapter that interfaces a 6502 to the 8501 signals with 74xx bus transceivers in between in order to implement the AEC funcitonality. Also, the CPU port is implemented with ...
Commodore Retro Commodore TED
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MINIMAL 6502 SINGLE BOARD COMPUTER: CRAB APPLE I
Swales Jan 17,2023
A simple 6502 based computer which is compatible with the Apple 1 computer from the 1970s.It uses a PIC18F to act as a serial UART. This also enables a menu to adjust BAUD rate and CPU clock speed (1,2,4MHz).The system has 32k of SRAM and uses an 8K EEPROM for the OS.More information can be found on GITHUB.Also, here's a short video of the serial configuration.Enjoy!Geoffrey.
6502 Ben Eater SBC
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2
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Commodore 64 128 16 Plus/4 1551 MOS CPU Replacement 6510 8501 7501 8502 with 6502
kinmami Oct 03,2022
Original project by Monotech:https://github.com/monotech/MOS_CPU_Replacerhttps://monotech.fwscart.com/Replace rare/expensive/unreliable MOS CPUs:6510 (C64) (8500 is same as 6510)6510T (1551 floppy drive)8501 (C16, C116, Plus/4) (7501 is same as 8501)8502 (C128)BOM list in the attachment.R6502 CPU can be found at:https://bit.ly/3y6lMsM
Commodore CPU MOS
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RC6502 RAM Board
Apr 01,2022
RC6502 RAM Board project
815
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RC6502 Backplane Revision B
Mar 25,2022
The Rev. A board is the only one available on PCBWay, and I wanted Rev. B.Since building and spending time with the excellent RC2014 computer kit, I wanted to build another one from scratch while learning even more about them along the way. Combine that with the love of old machines I'll never be able to own, and the missing knowledge to actually do that I instead started looking for books on how things work on a more basic level.Seems someone, Tow Owad ofcourse, wrote a book on called...
RC6502 DIY SBC
1346
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Apple IIe CPU Adapter W65C02S
Dale Richardson` Mar 18,2022
Was inspired to make a PCB based on the circuit designed by the Byte Attic in his Pimp My 8 YouTube video series. His original design for other 8 bit machines didn't agree with the Apple IIe so the circuit was simplified. I took this refined design and made a circuit board. Add 2 3.3k resistors, a 1uf ceramic cap, some machine pin headers and a socket and you're good to go!I recommend watching the videos to get a feel of how Bernardo's thought process arrived at this solution! https://youtu.be/B...
Retro Apple IIe 6502
2282
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Breadboard 830
Lunde Feb 08,2021
I had to move lately, so I needed to transfer a few projects to PCB instead of having them fall apart from the breadboards they were on - so I made a PCB that looks like a 830 point breadboard. Bus bars can easily be linked on the backside of the PCB, or you can cut those off using a pair of pliers if you do not actually need them.This version of the board is perfect for when you've tested individual modules while following the Ben Eater series, both the 8 bit computer as well as the 6502 builds...
breadboard prototyping breadboard 830
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6502 (W65C02S) to Atari SALLY adapter Board
Secco41 Jan 26,2021
This project has been developped by TheByteAttic, Thanks for this awesome project,Check his youtube channel and github page for details.This is a small daughter board that fits into the socket of the "Sally" custom CPU in the Atari 800XL, 65XE and 130XE microcomputers (the RF shield must be removed, otherwise the daugher board won't fit inside). It replaces that CPU with a CMOS, modern, low-power, fully static, currently in production W65C02S CPU and some auxiliary logic. https://www.youtube.com...
amiga commodore 8bit
4536
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6502 Games Board
Lunde Mar 12,2020
Recently started reading a book called 6502 Games by the now legendary author Rodnay Zaks, the one behind the definitive guide on classic assembly coding for the 6502 processor. In the book (available to view on archive.org) he describes the basis for a simple gaming platform that anyone at home should be able to build, then he includes the code for quite a few exciting games (for the 70s) and how they work. Anyway, his hardware was intended for connecting it up to a SYM-1 microcomputer though I...
retro-computing Games BE6502
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