On Wed, May 9, 2012 at 10:30 AM, Michał Pleban <lists@michau.name> wrote: > But as I reviewed all the "final", "universal" and "ultimate" cartridges > already available, I noticed that they are based on similar approaches: > > * Stash as much FLASH as possible to store cartridge images. > * Provide the method of flashing the images from PC, and a menu to choose an > image from the computer. > * Attach some useful circuitry such as SD-card interface for added value. > > This is a nice approach, but severely limited to just emulating cartridge > images plus whatever extra circuitry is glued in. What I want to do now is > another step further: > > * Instead of Flash, use a reprogrammable FPGA chip. > * Provide a solution to connect a SD-card. > * The boot ROM will load selected FPGA image from SD-card and put it into > the FPGA. > This is actually more or less the way the 1541 Ultimate works. If you have the inclination and the know-how, you can turn it into more or less whatever you want. What it does in its standard configuration is (off the top of my head): - Emulate two 1541 drives (including the drive sounds) - Emulate an REU with up to 16 MB RAM - Emulate most cartridges produced for the C64 (game cartidges as well as cartridges such as the Final Cartridge III, Epyx Fast Loader, etc.) - Work as a USB host IIRC the software (including FPGA?) are also open source. /Niklas Ramsberg aka < . (:) Bacon < . Message was sent through the cbm-hackers mailing listReceived on 2012-05-09 10:00:34
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