Introduction

Is this possible? Is this worth it? What's the point?

Is it possible?

What are the requirements for this project?

Z80 Emulator

There are a number of articles on the net. Two of them are pointing to using the PIC32.

http://www.exploringpic32.com/ZX.html

This describes the spectrum and also points to a development board that uses the PIC32MX460F512L microcontroller which is now obsolete, however there is a new board available.

http://www.mikroe.com/downloads/get/1221/pic32mx7_mmb_manual_v101.pdf

This board has the following that can be used for the Z88

• power supply source voltage can vary from 9 to 32V DC and from 7 to 23V AC.

• Reset button

• 32.768kHz Crystal oscillator

• External power supply source connected to an AC/DC connector provided on the board; or +5V PC power supply over the USB cable
  - to connect the battery.
• TFT 320X240 display with a palette of 262.000 colours. It is used to display graphic content.
   - the displayRS-232 Communication Interface - the Serial Port 
• 8 Mbit Flash Memory
• 1K Serial EEPROM Module

• MMC/SD Connector microSD card slot (2GB for files)

• micro USB Connectors (Keyboard, Printer)

•  ZigBee Module

• JoystickTouch Screen
• TFT 320x240 display covered with a resistive touch panel.

• ICD Programmer

• Accelerometer 

• Temperature Sensor

• 4 x LEDs

• Microphone Input

• Audio Output