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pcb: add errata for rev.A
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@ -3,6 +3,7 @@ Sound card for ZX Spectrum edge connector (ZX-BUS). Contains MOS SID, YM2149 (AY
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### Current status
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Work in progress, both pcb and firmware isn't finished yet and may contain serious issues.
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Please note the [errata](pcb/rev.A/ERRATA.txt) for rev.A pcb.
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### SID
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MOS-6581 or MOS-8580 may be installed, but with some cautions. This addon doesn't contain buffers between SID and bus connector, and that may cause SID's damage by ESD if no luck. As I have no real SID, I've checked this addon only with SwinSID.
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3
pcb/rev.A/ERRATA.txt
Normal file
3
pcb/rev.A/ERRATA.txt
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@ -0,0 +1,3 @@
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Quiet sound output from nanoSwinSID.
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Incorrect A8 and A10 signal connections on ZXBUS connector. A8 should be connected to pin B26 and A10 to B27 to get SID working.
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