uzix/zx-tsid
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update readme and pcb photo

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Eugene Lozovoy
2023-09-19 12:31:04 +03:00
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README.md
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@ -9,6 +9,8 @@ SID accessible via #xxCF port, where xx - SID's register number.
You may connect your ZX Spectrum audio output to second 3.5mm jack and it will be mixed in sound card output signal. You may connect your ZX Spectrum audio output to second 3.5mm jack and it will be mixed in sound card output signal.
NOTE: +12V/+9V voltage is strictly required for SID, your ZX Spectrum or clone must provide it on the edge connector.
### Changelog & current status ### Changelog & current status
* Rev.A - initial release with SID, AY and Covox. [Errata](pcb/rev.A/ERRATA.txt). * Rev.A - initial release with SID, AY and Covox. [Errata](pcb/rev.A/ERRATA.txt).
* Rev.B - abandoned. Files kept for historical reason. * Rev.B - abandoned. Files kept for historical reason.
@ -16,5 +18,5 @@ You may connect your ZX Spectrum audio output to second 3.5mm jack and it will b
* Rev.D - improved signal-noise ratio. Fixed read from SID chip. * Rev.D - improved signal-noise ratio. Fixed read from SID chip.
TODO: TODO:
* Check with real SID chip; * Check with 8580 SID chip;
* Further improve signal-noise ratio. * Further improve signal-noise ratio.

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