letzter Beitrag von Frenetic am
Nano SwinSID upgrades (paddles, etc...)
- CodeKiller
- Erledigt
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I think I did test this version and the result was less than satisfactory. If memory serves, there was a lot of noise even when nothing was playing. Flashing the Lazy Jones fix firmware solved the problem. I can, however, also find Swinkels's 20120524 firmware in the same directory of my hard drive, so I might actually have accidentally flashed that one, believing it was the test firmware you mentioned (also present in the same folder of my hard drive). When I get the chance, I'll see if I can test the 20141027 test firmware a bit more and will report back here.
I have the Swinkels 20141027 version for a while and it also solves the issue with LazyJones, and also sounds better with 180... I have not noticed any problems.
To clarify this... This firmware works on some C64's and not others. On some machines, it works perfectly and has no noise, and on others it has all kinds of noise.
I have two 250469 Rev.4 boards - one has the problem and one doesn't.
I also have two 326298 boards - one has the problem and one doesn't.
All work fine with the CK lazy patched version.
I can't really pinpoint the difference, but it must be timing somewhere.
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yes, there is no beep. I've posted here in the forum, but can't search myself...
Is this patch implemented on Swinkel's last FW "20120524" or CK's "Lazy Fix" ?
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I patched the firmware which includes the Lazy Fix
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Not sure if it was already said:
The Nano SwinSID works without maior issues on my Sixty Clone PAL (maybe slightly distorted, I can't say for sure); but with the Sabrina 2020 easy cartridge (https://csdb.dk/release/?id=189483) it sounds horribly, very distorted, like when you exceed in dB gain volume.
I tried both SwinSID88_lazy_fix_by_ck.hex (dated 18/10/2014) and SwinSID88_20120524.hex (dated 24/05/2014) firmware versions, with all the J1 and J2 possible config.Same machine with an original SID it works fine.
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Looking at the SID-initialization and $d418-accesses, this demo uses Mahoney's technique to play audio -- the SwinSID can't properly handle this technique (same for other modern ones).
