Subj : Timing is everything To : David Noon From : Jonathan de Boyne Pollard Date : Wed May 17 2000 02:05 am DN> However, the driver I am writing needs to be able to run without DN> interrupts, so it uses Timer 2 and polls the port; the polling makes it DN> a little [as in totally] CPU-bound. I'm curious. Why are you not able to use interrupts ? ¯ JdeBP ® --- FleetStreet 1.22 NR * Origin: JdeBP's point, using Squish (2:257/609.3) .