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The completed prototype unit Viewed: 2378 times.
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The development board, cabled to 2 logic analyzers Viewed: 2075 times.
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Timing diagram of "expanded mode". Top trace is clock (fire), bottom are data (up,down,left,right) Viewed: 1873 times.
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Another shot at timing. Viewed: 1923 times.
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Finally! Managed to layout this board. 0.6 inches square! Viewed: 1625 times.
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Board with copper ground pours
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psxjoy-smd-board Viewed: 1638 times.
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psxjoy-smd-board (poured) Viewed: 1694 times.
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psxjoy-smd-board-top Viewed: 1541 times.
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