hi..

i try to build laser rangefinder..i collected all information about transmitting,receiving operations including hardware and circuits.
but i face now a problem with interfacing, i searched and found a method which is called time-of-fly.
this method uses TDC ( time to digital converter)..which convert a period of time to adigital value ..
the problem is how to use TDC chip (TDC-GP1 ...) with pic16f877a??

any one can help me ?