Ake Hedman wrote : > So I lower the prescaler and also count timer owerflows. > Now I just get very strange and random results. Now, how do you know they are "strange and random" ? Or in other words, how are you "reading" those results ? On an LCD ? Dumped on a serial line ? Could it be some conversion problem between the internal binary format and whatever "display" format you use now that you get larger results ? Regards, Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist