Thanks for the suggestions, but at the moment I think I am getting quite a bit more resolution since essentially my time increment is 1/5MHz or 200nsec and then this is applied over a longer period of time in regards to only measuring over only 1 cycle, there is an extended resolution due to the fact that it is over 200 cycles rather than just one. It would be nice to use the hardware timers as I would like to do this in the background more on an interrupt basis rather than taking using CPU time to make the measurement, but I do appreciate the ideas.
T