Date: 2007-12-11 07:41:08
Hallo Jim, > Just thought I'd check. If no one is interested, I am interested. But Silverdream offered to make them as well. So before two parties are going to make them, please sort that out between the two of you. > Now, Ruud's schematic he sent me differs from the one on the > web site, as this one has a 62256 and a 6116. For the others: I sent Jim by accident an unfinished design from my work because I was not able to access the Intenet from home. These RAM's are NOT needed. And Jim, if you want to make the design smaller: ommit the buffers! (But make sure to use a short IDE cable) Remark: for one of my projects using this interface, extra RAM is mandatory. But it is quite simple to piggyback a 6116 on top of the original one and to connect its CS line with one of the free outputs of the 7442. OK, this just adds 1 KB instead of the full 2KB but it is more then sufficient. > I thought I might see if I could extend the design to > do 16 bit transfers without too many more ICs. http://www.baltissen.org/images/1541ide.png And this one works as well! I'll send you the SCH in a PM. But read http://www.baltissen.org/newhtm/1541ide8.htm for the details why I don't want to use it for the moment. If you have a good look at the design, you'll see where the 62256 in your SCH originates from: just a leftover of this one :) -- ___ / __|__ / / |_/ Groetjes, Ruud \ \__|_\ \___| URL: Ruud.C64.org De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen. Stichting Pensioenfonds ABP is gevestigd te Heerlen en ingeschreven bij de Kamer van Koophandel Zuid Limburg onder nummer: 41074000 The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose its contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission. Stichting Pensioenfonds ABP, having its registered office at Heerlen, is registered in the Traderegister of the Chamber of Commerce Zuid Limburg (Maastricht), the Netherlands, registration number: 41074000 Message was sent through the cbm-hackers mailing list
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