dj-apendix/zx-multisound
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update errata for pcb rev.A and rev.A1

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Eugene Lozovoy 2023-09-09 11:20:28 +03:00
parent 63a2324711
commit 0023e1afc9
3 changed files with 7 additions and 1 deletions
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2
README.md
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@ -17,7 +17,7 @@ Sound card for ZX Spectrum (NemoBus).
### Changelog & current status ### Changelog & current status
* Rev.A - first release. Please note the [errata](pcb/rev.A/ERRATA.txt); * Rev.A - first release. Please note the [errata](pcb/rev.A/ERRATA.txt);
* Rev.A1 - fixed all rev.A issues. * Rev.A1 - fixed known rev.A issues. Please note the [errata](pcb/rev.A1/ERRATA.txt).
Sound card has been tested only with ZX Evolution. You can use it with another computer at your own risk. Sound card has been tested only with ZX Evolution. You can use it with another computer at your own risk.

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pcb/rev.A/ERRATA.txt
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@ -1,3 +1,7 @@
1. Missing MREQ signal. You should wire MREQ from edge connector to TP1 1. Missing MREQ signal. You should wire MREQ from edge connector to TP1
2. R2, R33 - 10K 2. R2, R33 - 10K
3. R6, R12, R30, R31 - 47k 3. R6, R12, R30, R31 - 47k
UPD. 2023-08-21:
4. R20 and R34 labels on silkscreen are misplaced
5. Incorrect 3.5mm jack footprint - left-right signals are swapped

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pcb/rev.A1/ERRATA.txt Normal file
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@ -0,0 +1,2 @@
1. R20 and R34 lables on silkscreen are misplaced
2. Incorrect 3.5mm jack footprint - left-right signals are swapped