Introduction Here’s another old project that I decided to redo to see if I could do better. Back in the days when the Commodore 64 and Atari 400’s first came out, most home computers would store and retrieve data from standard audio cassette tapes. Lucky for me, my C64 had a floppy disk drive so […]

Project by: Mike Kohn Music Player The W65C265 chip has 2 tone generators built in, so I decided for a second project to play some music. The tone generators, unlike toggling an I/O pin with a timer, generates a sine wave. Since this project is pretty similar to my previous SN76489 MIDI player I ended […]

Software SPI Note: The following is a repost from Mike Kohn on one of his projects with the W65C265SXB.  He also made Java Grinder, which works with the 6502/65816. There are at least two famous robots that run on 6502: Futurama’s Bender and The Terminator. I thought it might be fun to write some 6502 […]

Introduction: Simple Terminal interface written in Python. There is one script that works for both the W65C134SXB and W65C265SXB. This is meant to give a simple interface that the user can customize for their needs. This makes the terminal interface much nicer than the default HyperTerm style terminal. Github: https://github.com/WesternDesignCenter/TerminalPython

Introduction: A tool for modifying the firmware on your WDC W65C816SXB Development Board The SXB development board has a 128K Flash ROM that can be updated under software control. The design of the SXB board divides the ROM into four 32K banks and maps one these into the memory area between $00:8000 and $00:FFFF. On […]

I managed to get it to play Game of life on my old 24×24 LED display… The LED display is controlled by 9 MAX7219 LED controllers that is interfaced using the VIA. The shift register in the VIA is used rather than bit banging the data with IO ports, this allows for a better shift […]

Introduction: The binary number system plays a central role in how information of all kinds is stored on computers. Understanding binary can lift a lot of the mystery from computers, because at a fundamental level they’re really just machines for flipping binary digits on and off. To test and evaluate these circuits we will need […]