Can you realy see the difference between 26.0 and 26.3 us on a scope ? Does the overall frequency also have the same differense ? Jan-Erik S=F6derholm. daniel_sweet@NTLWORLD.COM wrote: > Using the simulator stopwatch I have measured that the period should = be as follows: > > High =3D 261 instruction Cycles (26.1us) > Low =3D 260 Instruction Cycles (26.0us) > >When I look at the output from PortB, bit 7 on a scope I see slightly = different timing to that expected: > >High =3D 26.1us >Low =3D 26.3us -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body