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 Post subject: SID sound on 6502 SBC
PostPosted: Sat Oct 11, 2014 12:06 am 
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All --

Are there any "gotchas" I should be aware of in using a SID as a stand-alone peripheral for the 6502 SBC? I'm looking at the C64 schematic and it looks to me to be like any other peripheral chip but with a 32-byte address block requirement.

I found a replacement, emulated SID called the SWINSID which I ordered from a chap in Italy (look for item 171489650485) that's in a DIP28 form. I should have it in a week or so and I'll try to prototype something and see if it works.

If so, I might add it to the next version of the SBC. Boy, it's getting crowded on that board...

Rich

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PostPosted: Sat Oct 11, 2014 5:56 pm 
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I assume your SBC is faster than 1MHz. The datasheet http://archive.6502.org/datasheets/mos_6581_sid.pdf states that at pin 6 (PHI2), there must be a nominal clock speed of 1.0 MHz. I’ll prototype this on my SBC in the near future. Perhaps the SWINSID is more flexible and can take a higher clock speed.

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PostPosted: Sun Oct 12, 2014 1:57 am 
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RichCini wrote:
... I found a replacement, emulated SID called the SWINSID which I ordered from a chap in Italy (look for item 171489650485) ...


When I plugged that part number into my evil search engine, it dropped me on the appropriate page, but it was obviously in Spanish, not Italian. I guess I shouldn't read anything into it, since the world has become such a small place, but it still struck me as peculiar.

Mike


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PostPosted: Sun Oct 12, 2014 9:57 am 
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There's some good links I posted about SWINSID in this link.

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PostPosted: Mon Oct 13, 2014 4:18 am 
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The SwinSID link I have on my links page is apparently dead, although it was good not long ago:
http://www.swinkels.tvtom.pl/swinsid/
If anyone knows what happened to it (like if it got moved), please let me know.

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PostPosted: Mon Oct 13, 2014 4:36 am 
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It works fine for me, Garth (Google Chrome on Vista, flame suit at-the-ready).

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PostPosted: Wed Oct 15, 2014 6:08 pm 
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On both computers, with two versions of Ubuntu, I'm still getting:
Quote:
ERROR
The requested URL could not be retrieved

The following error was encountered while trying to retrieve the URL: http://www.swinkels.tvtom.pl/swinsid/

Connection to 193.238.200.6 failed.

The system returned: (110) Connection timed out

The remote host or network may be down. Please try the request again.

but I don't have trouble with any other websites.

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PostPosted: Wed Oct 15, 2014 7:59 pm 
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Works for me. Until you get a local fix, you can try the wayback archive:
http://web.archive.org/web/*/http://www ... l/swinsid/


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PostPosted: Thu Oct 16, 2014 12:06 am 
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Thanks Ed, but that doesn't work for me either. I still have been having no trouble at all with other websites though. I asked our son to try it in the other room, and it worked for him, with the same OS, same version, and same browser.

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PostPosted: Thu Oct 16, 2014 2:09 am 
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I have a similar problem here, with dclxvi's site http://www.lowkey.comuf.com/ ... I can't figure out why I can't view it on my main home computer, but I don't have the appropriate skill-set to diagnose the problem, which certainly seems to be at my end.

Mike


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PostPosted: Thu Oct 16, 2014 9:11 pm 
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Our son tried it again today, and now it has stopped working for him too.

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PostPosted: Fri Oct 17, 2014 12:30 pm 
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It works for me at home but is blocked at work as "suspicious". A derivative product is here:

http://www.nightfallcrew.com/05/04/2011/nano-swinsid-prototype-unboxing-and-first-impressions/. The version I got on eBay uses all SMD components (including the oscillator) but is in the same DIP24 (600 mil) form factor.

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PostPosted: Fri Oct 17, 2014 11:30 pm 
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RichCini wrote:
It works for me at home but is blocked at work as "suspicious". A derivative product is here:

http://www.nightfallcrew.com/05/04/2011/nano-swinsid-prototype-unboxing-and-first-impressions/. The version I got on eBay uses all SMD components (including the oscillator) but is in the same DIP24 (600 mil) form factor.

Interesting. Now the 'swinkels' link is working for me from that nightfallcrew.com link and also same link from one of the sublinks I'd posted before. It was not working yesterday, but now they are. What is the meaning of this?

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PostPosted: Sat Oct 18, 2014 4:20 am 
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That site is upright with a pulse right now.

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