Hi. I have a signal which uses binary non return to zero.. so a logic 0 is
represented by a voltage of (about) .33 volts and a 1 represented by about
0.8 volts. I want to use a pic to decode this data, but the NRZ is
frustrating me because I dont know how to offset the signal so it
corresponds with 'normal' TTL voltages.

About the only thing I could think of was to use a 0.33v for the pic ground,
and 5.33 for the pic supply ( voltages relative to my signal ground ) a) I
dont think it will work and b) Its just doesn't seem right :-)

Any pointers greatfully received.

Thanks

--
Jon Baker

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