Hallo Luis, > how is the signaling exchange between the C64 and the SCPU The SuperCPU disables the 6510 and takes over the C64. I don't know exactly how but this page has info on the CP/M card for the C64: http://baltissen.org/newhtm/c64_cpm.htm It includes a schematic and should give you an idea how the 6510 can be stopped and put in tri-state and how the a-synchronous Z80 handles the transfer of data between itself and the C64. This could be a starter for a simple design where the 65816 just runs at 1 MHz and does nothing else than replacing the 6510. Next step could be to make the 65816 run at an odd frequency like 5Mhz just to make sure that the synchronization works. Then it is adding RAM, ROM and I/O to the design. When I bought the 1541Ultimate one of the ideas was to use as a development platform as well. Particularly I had the SCPU in mind. But I soon found out it was way above my head: no FPGA knowledge :( But I thought that what I could not, maybe others could. So I convinced Gideon to make the Ultimate open source. Maybe something for you? Regarding my FPGA knowledge: I bought a Godil and did some small projects with it. But it convinced me that the Ultimate is still out of my league yet :( Good luck and have fun! Met vriendelijke groet / With kind regards, Ruud Baltissen www.Baltissen.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. APG Groep N.V. is gevestigd te Heerlen en is ingeschreven in het handelsregister van de Kamer van Koophandel Limburg onder nummer 14099617 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. APG Groep N.V. is registered in the trade register of the Chamber of Commerce Limburg, The Netherlands, registration number: 14099617Received on 2018-07-19 09:00:07
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