Hi. That shouldn't be any problem. Simulating timers works very well in MPSIM. Very little setup, no external "stimuli" to setup. Just put a breakpoint in the ISR, open the "watchtimer" window and measure the time between two stops at the breakpoint. - Let the code run to the brakpoint. - Zero the timer in the watchtimer. - Let the code run again to the same breakpoint. Now the watchtimer should show the number of cycles and (if the processor frequency has been setup correctly) the actual time elapsed. Jan-Erik. Richard R. Pope wrote 2014-07-23 14:59: > Hello all, > Something else I need to do is figure out how to use the simulator > in V8.x. I think the biggest problem I will have here is simulating the > timer an interrupt code. I'll work on it. > Thanks, > rich! > > On 7/22/2014 9:20 PM, James Cameron wrote: >> On Tue, Jul 22, 2014 at 12:20:10PM +0200, Jan-Erik Soderholm wrote: >>> James Cameron wrote 2014-07-22 08:20: >>> >>> > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .