On Wednesday 09 May 2012, you wrote: > On Wed, May 9, 2012 at 10:30 AM, Michał Pleban <email@example.com> 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.) "most cartridges" is really exaggerated... it emulates about 5 or 6 different crt types at the moment. Message was sent through the cbm-hackers mailing listReceived on 2012-05-09 10:00:45
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