builderpages:plasmo:vga65:vga65pcb_r0
Table of Contents
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Table of Contents
VGA65 Rev0, Bare-bone 25MHz Standalone 6502 Computer
Introduction
VGA65 started out as a beam racing experiment that generated static 640×480 monochorme image with 6502 overclocked to 25.175MHz. Slowly the design evolved into a standalone 6502 computer with VGA, PS2 keyboard, serial port, and CF interface. There are several generations of prototypes leading to this experimental PC board.
Online discussions about VGA65: 6502 as VGA controller on 6502.org and 6502 or Z80 as VGA controller on Google forum retro-comp
Features
W65C02 overclocked to 25.175MHz
128Kx8 RAM, two banks
CF disk interface
EPM7064S CPLD
Bit bang serial port, 115200N82
PS2 keyboard interface
Monochrome 640×480 VGA
Design Files
Software
VGA65Mon, basic monitor for VGA65
VGA65 demo
builderpages/plasmo/vga65/vga65pcb_r0.txt · Last modified: by 127.0.0.1