Connecting a real c64 SID to the amiga
Hi, I know that the amiga version of catweasel allows you to connect a real c64 sid and for using it with playsid. Unfortunately the catweasel is not in production anymore and it is very rare. Since I don't really need the catweasel for its reading/writing abilities but only for connecting the sid, how much difficult could be to just make a sid interface? Can someone help me with the specifics and knows how that part of the catweasel works? Thank you
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You could have a look at this project:
https://www.pcbway.com/project/share..._Zorro_II.html |
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Why not comment a pair of them for stereo 3D sound?
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Even more interesting would be adding support for rather new 3SID standard option with three SIDs. |
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the playsid library works very well and the sound generated in sid files is somehow similar to the original if you want a perfect sid sound try in a PC winamp 2.95 + SidAMP 2.4b plugin |
The clockport would be an option, but it's not as easy as it might first appear. Looking at the SID, it looks like it has 5 address lines (32 registers). The clockport only has 4 address lines.
IDE isn't ideal, but it has been used in the past - the Catweasel Mk 2 could optionally be connected to the IDE port instead of the clockport, for example. |
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I really like the idea of a SID Chip connected to an Amiga. Does anyone know at what memory address the SID Chip is expected to be available at? Might be a nice add on to some of my projects. :D
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I'm not really sure what the purpose of your post was - I was just pointing out that these other ways of connecting it are a bit more involved. Quote:
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Replied to concerns raised by you - from my perspective this is OK solution for limited address space. if there is another reason of your confusion then i must say: your confusion currently confusing me too... Perhaps it will be easier to do some systematic approach.
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btw,
The commodore Amiga should have built in a SID chip from scratch or at least since 1987 when the A500 was out together with paula there would have been 7 audio channels 4 for music and 3 for sid sound effects The video games would have been different and much better in sound and not all the crap created which you choose between audio effects or music We would also have had a perfect emulation in a 020 of the commodore 64, today is not very possible unless you have a 040/40mhz or 060/50 since the SID emulation waste lot of cpu time now is late for that, it does not make sense for me get into complications when something is not standard nobody is going to create good software |
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Most people use IDE to connect hard disk (or similar) unit. So that's why interface on IDE is rather not too god idea. |
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As SID require PCB anyway then adding passtrough IDE connector looks to me pretty obvious - of course there are concerns raised by Daedalus associated with some IDE extensions/buffers but still for plain A1200 with only single IDE HDD connected this is neat point (IDE port) where data bus is available and some address lines also provided. |
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