https://test.pinballmakers.com/wiki/index.php?action=history&feed=atom&title=P-ROC_functionalityP-ROC functionality - Revision history2026-05-28T04:10:39ZRevision history for this page on the wikiMediaWiki 1.43.0https://test.pinballmakers.com/wiki/index.php?title=P-ROC_functionality&diff=1331&oldid=prevSteveshoyer: P-ROC functionality2016-02-08T05:26:10Z<p>P-ROC functionality</p>
<p><b>New page</b></p><div>A P-ROC combined with a PC or embedded microcontroller provides functionality equivalent to a CPU board in a pinball machine. Software runs on the PC or microcontroller and communicates with the pinball machine's features through the P-ROC via USB.<br />
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The P-ROC is essentially an [http://en.wikipedia.org/wiki/Field-programmable_gate_array FPGA (Field Programmable Gate Array)] surrounded by some support logic and a bunch of connectors. The FPGA contains custom logic enabling it to perform tasks including:<br />
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* [[USB_Control | Communicating with a PC over USB]]<br />
* [[Switch_Control | Scanning switches for switch events]] (Direct, Matrixed, and Burst)<br />
* [[Driver_Control | Driving coils, lamps, motors, etc]] (Direct and Multiplexed)<br />
* [[DMD_Control | Driving a Dot Matrix Display]] (DMD)<br />
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Note that the P-ROC does not handle audio. Instead audio is typically processed by the computer or microcontroller which is running the game software connected to the P-ROC.<br />
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The support logic and connectors enable the P-ROC to be used as a controller in custom homebrew pinball machines or as a CPU board replacement in the following generations of machines:<br />
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* WPC<br />
* WPC-95<br />
* Stern Whitestar<br />
* Stern S.A.M.</div>Steveshoyer