Hi Bill! I also have thought of building such a card. The 4 banks are OK, if there could be more that would be even finer. The most useful feature for me would be the use of a ferroram instead of a battery buffered SRAM. So you can get rid of the battery and lost sounds. I wanted to use 32kx8 Ferrorams FM18L08 from RAMTRON as I have some here and we have a successful design with them in the company I am working for. These parts are obsolete now (better: not recommended for new designs) but there are newer compatible parts, but I don't remember the new product number. I am open for discussions and maybe design help or cooperation. As a testing platform I only have the Casio Cz101. [I also want to make a Yamaha DX7 module also based on FerroRams some time...] Ciao Peter http://www.ullrich.at.tf http://go.to/datadial (synth addon) ________________________________________ Von: CZsynth@yahoogroups.com [CZsynth@yahoogroups.com] im Auftrag von Bill Tomlinson [tomlinson6050@...] Gesendet: Freitag, 07. Jänner 2011 00:03 An: CZsynth@yahoogroups.com Betreff: [CZsynth] RA-3/6 cards Any interest in a new run of memory cards? DON'T get your hopes up yet. Still in the planning stage. My goal is a quad-cart: Two switches on the outside to select four banks (like the old yamaha supercard) and an INTERNAL switch to configure it as a RA-3 or a RA-6. Decided NOT to bother designing a smart memory that would detect which (3/6) or allow banks from different synths to load on the same cartridge. Ideas? Suggestions? Flames? ------------------------------------ Yahoo! Groups Links The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof, and is kindly asked to notify the sender and delete the e-mail immediately.
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Re: [CZsynth] RA-3/6 cards
2011-01-07 by Ullrich Peter