Brad Linder2d ago
The picoZ80 is a drop-in replacement for the classic Zilog Z80 processor, which was discontinued in 2024. This version is based on Raspberry Pi RP2350B and ESP32 chips and brings some modern features, while fitting in the socket of any PC designed for the Z80. https://www.cnx-software.com/2026/03/26/picoz80-a-z80-microprocessor-drop-in-replacement-based-on-raspberry-pi-rp2350b-and-esp32/ #ZilogZ80 #picoZ80 #RP2350B #ESP32
picoZ80 – A Z80 microprocessor drop-in replacement based on Raspberry Pi RP2350B and ESP32

The picoZ80 board is a drop-in replacement for the Z80 microprocessor based on the Raspberry Pi RP2350B dual-core Cortex-M33 microcontroller and an ESP32 wireless SoC for WiFi and Bluetooth connectivity. My first computer was a ZX81 powered by a Zilog Z80 microprocessor, which was eventually phased out in 2024 after almost 50 years of production. But retro computing enthusiasts keep the platform alive, usually with softcore FPGA implementations such as MiSTer. The picoZ80 is different as it relies on the programmable I/O (PIO) state machines from the RP2350B MCU to reproduce cycle-accurate address, data, and control buses of the Z80 MPU. picoZ80 specifications: MCU - Raspberry Pi RP2350B CPU – Dual-core Arm Cortex-M33 CPU @ up to 150/300 MHz  (the two RISC-V cores do not appear to be used by the project) Memory – 520KB SRAM Storage – 8KB OTP flash Package – QFN-80 Memory - 8MB PSRAM Storage 16MB flash

CNX Software - Embedded Systems News
More Fun Making ItJan 28

Building a CPU Tester for Z80 CPUs

https://makertube.net/w/adWb98vABUpReps3kBQcKM

Building a CPU Tester for Z80 CPUs

PeerTube
RetrópolisSep 9, 2025

Mosca branca do dia: Primo

https://retropolis.com.br/2025/09/09/mosca-branca-do-dia-primo/

#MundoRetro #AlemanhaOriental #Clone #CortinaDeFerro #Hungria #MoscaBranca #TRS80ModelI #ZilogZ80

Mosca branca do dia: Primo - Retrópolis

Calma. Não é aquela figura arquetípica das ceias de Natal da família que fez concurso e ganha 50 mil reais por mês e é obrigatoriamente mencionado junto com as perguntas sobre as namoradinhas. Trata-se do MicroKey Primo, um computador doméstico baseado em Z80 (ou, para ser mais exato, U880, clone de Z80 da Alemanha Oriental),

Retrópolis - A cidade dos clássicos
@Rp12Biker Apr 26, 2025
What a beauty the #KneisnerM100 has become. My daily work would be called "case modding" nowadays ;) It literally appears in a completely different light now ;) Tomorrow I'll be working on the expansion box, so after a year and a half, I can tick off this exciting project.
If any of you are coming to the HNF in Paderborn in October: The current plan is to bring it to the RCT at 11th & 12th of October 2025.
#ComputerMuseum #RetroComputing #ZilogZ80 #Imsai8080
RetrópolisFeb 20, 2025

Da arte de dizer o Máximo com o Mínimo

https://retropolis.com.br/2025/02/20/da-arte-de-dizer-o-maximo-com-o-minimo/

#MundoRetro #Assembler #Assembly #demoscene #Grficos #lgbtq #minimalista #ZilogZ80 #ZXSpectrum

Da arte de dizer o Máximo com o Mínimo - Retrópolis

Um programa em assembler para o ZX Spectrum que desenha a Bandeira Progressista do Orgulho em 241 bytes. E aí, MSXzeiros? Vão deixar barato? https://www.youtube.com/watch?v=ZQZt4MO2eD4

Retrópolis - A cidade dos clássicos
@Rp12Biker Jan 23, 2025
Additional news about the #IMSAI8080 clone. Boot from HDD is the past and done. But booting from A: with GOTEK FlashFloppy as 5" ~800k is the next step of evolution. I also connected the original #TVI912C terminal for best compatibility.
On Saturday I'll look for a bigger compatible Winchester drive. Maybe there is something in stock to pimp it up a bit.
#Computermuseum #KneisnerM100 #ZilogZ80 #RetroComputing
HappyStarDiazAug 23, 2024

What a time to be alive #retrocomputing #zilogz80

https://www.classic-computers.org.nz/collection/exidy-sorcerer.htm

Exidy Sorcerer

@Rp12Biker Aug 3, 2024
The 'wooden' #Sinclair #ZX81 is in it's comfort zone in between all the other #ZilogZ80 fired stuff.
#RetroComputing #ComputerMuseum
Brad LinderJul 12, 2024

Lilbits: A new PC with an old processor, ARM’s upscaling tech, Snapdragon X benchmarks, and another Rabbit R1 security issue

The Zilog Z80 microprocessor is an 8-bit chip that was first released in the 1970s and used in a variety of classic computers and game consoles including the Sinclair ZX Spectrum, TRS-80, and Sega Master System. While its features are very dated by 2024 standards, the chip was in production for five decades and was only discontinued earlier this […]

https://liliputing.com/?p=170387

#accuracySuperResolution #ai #arm #benchmarks #chromebooks #chromeos #clusterBoard #factoryReset #lacros #rabbit #rabbitR1 #retoComputing #retroComputer #seal8BitComputer #security #snapdragonX #snapdragonXElite #snapdragonXPlus #turingPi #turingPi25 #upscaling #webBrowsers #zeal #zilogZ80

Lilbits: A new PC with an old processor, ARM's upscaling tech, Snapdragon X benchmarks, and another Rabbit R1 security issue - Liliputing

Lilbits: A new PC with an old processor, ARM's upscaling tech, Snapdragon X benchmarks, and another Rabbit R1 security issue

Liliputing
Brad LinderJul 12, 2024
Zeal 8-bit Computer Complete Edition is a retro computing kit that includes a motherboard with a 10 MHz Zilog Z80 processor, a video board, and a 3D printed case. Available for $180, it arrives just after the Z80 processor was discontinued (after 50 years). https://buff.ly/3Lioa62 #ZilogZ80 #RetroComputer #Zeal #Zeal8BitComputer
$180 Zeal 8-bit Computer Complete Edition is an all-in-one retrocomputing platform based on the Zilog Z80 microprocessor - CNX Software

The Zeal 8-bit Computer Complete Edition is a system that aims to bring retrocomputing to the modern age with the aid of a motherboard built around the

CNX Software - Embedded Systems News