From: Marko Mäkelä (msmakela_at_gmail.com)
Date: 2007-08-29 15:02:14
On Wed, Aug 29, 2007 at 02:23:51PM +0200, Anders Carlsson wrote: > Marko Mäkelä wrote: > >> the VIC-20 all-in-one cartridge (32k RAM and 4MB Flash ROM). > > As you may or may not know, parallel efforts in building a VIC-20 multicart > are currently in process. The first batch of working carts, filled with > software will very soon be available to the public. I didn't, but this is good news for me: one fewer project to worry about. > See the Denial web forum for more details. Can you post a link, or a summary of the hardware? If you are referring to the "FORUM" link at http://sleepingelephant.com/denial/, it seems to require registration. The cartridge I built a few years ago contains 32k of SRAM (HM62256), a 4 MiB 5-volt Flash ROM from AMD if I remember correctly, and a Lattice CPLD that implements memory banking. I wrote a menu program for launching programs or cartridges, which are stored in the flash in PuCrunch format. The menu program auto-detects PAL/NTSC, needed for setting the screen height and a color bar that acts as the selection cursor. I'm happy to contribute to the project if it is considered to be useful. If I did the same thing today, I'd probably use a small flash ROM chip for the menu system and include a CF or MMC slot for loading the content. That'd make data transfers much easier. Marko Message was sent through the cbm-hackers mailing list
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