HardLabs

AZ80 VDP

attraktorhh·aZ80_Computer·Hardware/aZ80_VDP/aZ80_VDP.kicad_pcb

AZ80 VDP PCB layout, top view — open source RP2040/RP2350 board by attraktorhh

About the AZ80 VDP PCB

AZ80 VDP is an open source RP2040/RP2350 PCB design by attraktorhh, published on GitHub under the MIT license. It is a 2-layer board measuring 110.3 × 40 mm, with 12 components from 11 distinct parts.

Its main chip is the Pi Pico 2, from the RP2040/RP2350 family. By type, the board carries 4 resistors, 2 connectors, 1 IC, 1 buzzer, 1 switch and 1 LED.

From the project

Die Video-Display-Processor VDP Platine ist eine Grafik- und I/O-Karte mit eingebautem VT100+ Terminal Emulator. Über die serielle Schnittstelle kann sie Daten vom aZ80 System entgegennehmen und anzeigen, kann aber auch über den USB Port Eingaben über eine USB-Tastatur an das aZ8

Die Video-Display-Processor VDP Platine ist eine Grafik- und I/O-Karte mit eingebautem VT100+ Terminal Emulator. Über die serielle Schnittstelle kann sie Daten vom aZ80 System entgegennehmen und anzeigen, kann aber auch über den USB Port Eingaben über eine USB-Tastatur an das aZ80 System weitergeben. Auch andere USB-Geräte, wie Maus, Joystick oder Speicherstick können abgefragt werden, wobei die Unterstützung noch work in progress ist.

AZ80 VDP, from the project README
From the project README

Main components on the AZ80 VDP

Pi Pico 2

AZ80 VDP bill of materials (BOM)

12 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pi Pico 2
U1
1
Z80 Bus
J1
1
C22750565
not HDMI ;)
J2
1
Buzzer
BZ1
1
C221872
Reset
SW1
1
UART SEL
PC SW2 VDP
1
SS14
D1
1
10UF
10uF
C1
1
10K
R1
1
22K
R2
2
270
RN1, RN2

AZ80 VDP design files

The KiCad project lives in the attraktorhh/aZ80_Computer repository on GitHub; these links point at the commit this page was built from.

AZ80 VDP: common questions

What microcontroller does the AZ80 VDP use?

The AZ80 VDP is built around the Pi Pico 2, from the RP2040/RP2350 family.

How big is the AZ80 VDP PCB?

The AZ80 VDP measures 110.3 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AZ80 VDP?

12 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the AZ80 VDP design files?

From the attraktorhh/aZ80_Computer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the AZ80 VDP design in my own project?

Yes, under the terms of its MIT license, which attraktorhh chose for the repository.

Can I test firmware for the AZ80 VDP without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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