Z80_Labcomputer

A computerproject based on the Z80 CPU.

Dator

Motherboard with Z80, 8 kB ROM and 32 kB SRAM, IO ports, Bus ports etc.

• Schema, PCB designed
• Produced and tested. OK so far…

cpukontroll

Clock, Reset etc.

• Schema, PCB design

display

7x4-segment display and IO-connections to adress 0-3

• Schema PCB design

tangentbord

Hex values input keyboard

• Schema, PCB design
  Needs redesign

EEPROMprogrammer

Arduino code and design for an Arduino Nano (or similar) based EEPROMprogrammer

• Schema, PCB design
  Connected to the computer using BUSRQ to facilitate programming without removing ROM.

simulering

Python simulation of the z80 cpu and the computer

• Inkludes 7x4 display
  Many opcodes not simulated yet

fastplatta

Holder for the Dator PCB

• 3D printed and tested

Used software:

KiCad, FreeCAD, Python, Arduino IDE