65C02 Vintage Computer Build

The goal of this project was to make a simple Eight bit 65C02 microprocessor computer.
I decided to use the W65C02S System-on-Chip (SoC) designs which is a cost sensitive 8-bit microprocessor instead of the Rockwell 6502 chip.
The W65C02 can use any clock speed from .5MHz to 14MHz. This project uses a 1MHz clock.
PHI2 clock can be stopped when it is in the high (logic 1) or low (logic 0) state.

Main boards.
Microprocessor Board
 -W65C02 (SoC) 
 -1MHz Clock 
 -74HC00 Nand Gate Control logic
 -Reset Button
 -AVR Mega 2560 Logic Analyzer Interface (Future Project)  
Memory Board 
 -SRAM Alliance AS6C62256A-70pcn 
 -EEPROM Atmel 28C256 
W65C22 VIA Interface Board
 -2 Port Interfaces: LCD Display - 8 bit LED Board
 -5 button keyboard  

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Programming the Microprocessor

Notepad++ to write the assembly language code.
Compile the program using vasm6502_oldstyle. 
Storing the Program to the EEPROM using the MiniPro Programmer.

Programming the EEPROM

How to use the MiniPro Programmer to to program the Memory Board EEPROM. 

Via Interface board

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Features of the W65C02S

 8−bit data bus
 16−bit Address Bus 65Kbyte Memory and IO Space
 69 Variable Length Instructions
 16 Addressing Modes
 1.8−5V Operating Voltage
 Fully Static for Power and Radiation Management
 Verilog RTL Core Available for FPGA Development

Reference Links to the W65C02 microprocessor:

http://www.westerndesigncenter.com/wdc/w65c02s-chip.cfm
http://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf

Microprocessor Board Dimensions 100mm X 100mm

Memory Board

W65C22 Interface Board

W65C02 Memory Map

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