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@@ -0,0 +1,51 @@ +overo_pdgpio - PD External for GPIO input/output on Gumstix Overo systems + +Copyright (C) 2012 Tim Redfern + +This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser +General Public License as published by the Free Software Foundation; either version 2.1 of the License, +or (at your option) any later version. + +================================================================ + +overo_pdgpio allows the state of GPIO pins on the overo 40 pin breakout connector to be used for input and output from within PD (or PDa) + +Information on these GPIOs is available here: + +http://gumstix.org/hardware-design/overo-coms/74-overo-connectors/97-gumstix-overo-series-40-pin-header.html + +http://www.jumpnowtek.com/index.php?option=com_content&view=article&id=54&Itemid=60 + +According to this info there should be 3 outputs available to a standard overo: + +GPIO144 (pin 30) +GPIO145 (pin 29) +GPIO170 (pin 19) + +and 3 inputs: + +GPIO114 (pin 4) +GPIO146 (pin27) +GPIO147 (pin 29) + +However I wasn't able to get GPIO146 to work under Ubuntu 12.04 + +================================================================= +WARNING! DO NOT USE THIS SOFTWARE WITH ANY COMPUTER OTHER THAN A GUMSTIX OVERO +HARDWARE DAMAGE IS POSSIBLE BY MANIPULATION OF GPIO PORTS ON EMBEDDED SYSTEMS + +To use- + +1. copy *.pd_linux and *.pd to: + EITHER the same folder as your patch, or the PD extras folder (/usr/lib/pd/extra) + +2. create an overo_gpioin or overo_gpiout object and look at the help file + +3. see the schematic (eagle cad files) in the overo_controlboard folder for wiring details + +================================================================= +overo_pdgpio was developed exclusively for circumstance - Tomorrow the ground forgets you were here + +http://productofcircumstance.com/portfoliocpt/tomorrow-the-ground-forgets-you-were-here/ + +Bugs, issues, suggestions: tim@eclectronics.org
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