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Full Discussion: USB Circuit Question
Homework and Emergencies Homework & Coursework Questions USB Circuit Question Post 302491110 by bkhusky on Wednesday 26th of January 2011 05:38:33 PM
Old 01-26-2011
USB Circuit Question

My problem is I need to control a 7 segment LED circuit (currently on a breadboard, eventually on a PCB). The only option I have from my PC is through USB. The circuit I have built on a breadboard uses 7 segment LED's and 4206 decade counters. I have cut a USB cable in half, and am using the positive and negative leads to power the circuit. I have made multiple attemps at controlling the circuit through the D+ and D- leads, but have failed so far. Basically all I need to do is control the clock input to the 4206 decade counter.


I have made multiple attemps at controlling the circuit through the D+ and D- leads, but have failed so far.

Does anybody know if this is even possible using the D+ and D- leads from the USB? I will eventually attempt to control it through bash script, but don't want to waste my time trying to develop a driver for this circuit if I will not be able to control it.

University of Alabama
Kenneth Ricks
ECE 494 - Capstone Design II (URL's not allowed due to my post count)
 

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CREATEBDDCIRCUIT(3)						   BDD FUNCTIONS					       CREATEBDDCIRCUIT(3)

NAME
createbddcircuit - creates a bdd circuit. ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr SYNOPSYS
#include "bdd101.h" bddcircuit *createbddcircuit( Name, NumberIn, NumberOut, BddSystem ) char *Name; long NumberIn; long NumberOut; bddsystem *BddSystem; PARAMETERS
Name Name of the bdd circuit. NumberIn Number of inputs. NumberOut Number of outputs. BddSystem The bdd system to work on. DESCRIPTION
createbddcircuit creates a bdd circuit with the name Name, with NumberIn inputs, and NumberOut outputs. This bdd circuit will use the bdd system BddSystem. If a null pointer is given, the default bdd system is used. RETURN VALUE
createbddcircuit returns a pointer to the bdd circuit created. EXAMPLE
#include "bdd101.h" bddsystem *BddSystem; bddcircuit *BddCircuit; BddSystem = createbddsystem( 100, 1000, 100, 50000 ); BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem ); ... destroybddsystem( (bddsystem *)0 ); destroybddcircuit( (bddcircuit *)0 ); SEE ALSO
bdd(1), resetbddcircuit(3), destroybddcircuit(3). BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. ASIM
/LIP6 October 1, 1997 CREATEBDDCIRCUIT(3)
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