I need write some PC software that measures the time between pulses.  The
pulses are being generated by a PIC.  I know I can use a logic analyzer but
would like the PC to do some processing on the data.  How can I get the PC
to measure the time down to the usec level.  I found C routines that
measure down to the msec level but no further.  Does the PC have a timer
that can be used?  Where can I get more info?

Thanks,

Norm