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Unformatted text preview: (right?), s o we look ed at the s ec ond link
([www.eng.utah.edu/~ c s 5780/debounc ing.pdf]) and that s hows how to build a debounc ing c irc uit us ing NAND gates ,
whic h look ed doable...
So we attempted to build the c irc uit depic ted (SR debounc er: http://www.gans s le.c om/images /debounc ers r.jpg ), but
we have hit a jam. The s witc h in the the image alway s res ults in one half of the c irc uit being c onnec ted to ground
and the other half dis c onnec ted (or both halves dis c onnec ted when it is moving between the two pos itions ).
Meanwhile, the s witc h that we have in our k it is s imply either c los ed or open, s o it only s eems to allow us to
implement half of the debounc ing c irc uit. The only way s that we c an think of to replic ate the behavior of the s witc h
from the image are:
1) Us e 2 of our s witc hes , or
2) Jus t get rid of the s witc h hardware and phy s ic ally manipulate the wires with our hands ins tead.
But neither of thes e s olutions s eems partic ularly...
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This document was uploaded on 03/22/2014.
- Fall '14