lundi 16 avril 2012

UNIVERSAL C64 CARTRIDGE


This is an universal C64 cartridge, with an USB port for uploading CRT files from a PC and for fast turnaround time when developing assembler programs for the C64 on a PC, work-in-progress at the moment. On the board is a 128 kByte SRAM and a CPLD, which can be programmed to emulate any cartridge type (but not the ones with DMA access, because resource usage would be a problem to implement e.g. CP/M). A small microcontroller, which I've used in my C64 joystick adapter project, receives the CRT files from the PC, configures the CPLD and writes the SRAM. A 16 Mbit flash is integrated for storing up to 31 cartridges with 64 kByte for each (some storage is needed for meta-information about the cartridge type, so it is not 32) in standalone mode without a PC.

Still some work to do, like writing the firmware for the microcontroller and the CPLD. This board is from parts I have in my junk box, the final board will be smaller, with more integrated chips for the level conversion, so that it will be like the usual C64 ROM cartridge form factor.


dimanche 15 avril 2012

FIGnition is like an early 80s microcomputer

FIGnition is an educational DIY computer which you can buy, easily build, write simple programs directly on it and importantly: understand from end to end. All you need is £20 and some simple soldering equipment - that's all I used to develop it in the first place! FIGnition is like an early 80s microcomputer: it only has 8Kb of RAM (expandable to 32Kb) and 384Kb of storage. It uses 3 chips and only 46 components. It is powered by USB and uses USB to upgrade the firmware, so FIGnition will improve over time. It runs a variant of FIG-Forth. Find out more from here.



Radio Shack Catalogs

What is RadioShackCatalogs.com?
This website is dedicated to America's technology store... RadioShack.

Radio Shack has been in business since 1921, over 90 years. And for 65 of those years has produced an outstanding electronics and technology catalog, surpassing the catalog of all rival companies.


http://www.radioshackcatalogs.com/

Commodore 64 - Cartouches de jeux

http://www.siemappelman.nl/download.html

Games in .crt format (zipped)
The following games for the Commodore 64 are converted by me to a cartridge version and available for download here in .crt format (zipped) used by the various C64 emulators. Crackintro's and any trainer pages are removed! Tested in VICE, CCS64 and C64Emu. These CRT's are UNIQUE and nowhere else to find on the internet. Comment are welcome!