Thanks for the site Charles. I searched the archive but didn't really find what I was looking for. I'm checking out the sq-1 site as I type. Out of curiosity, why the recommendation to move away from the F84? I have found it handy for a lot of little one-off projects. Beats using discrete logic. I do have a couple of F874 and a tube of windowed (EPROM) types but forget their number without digging through some stuff. John -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf Of Charles Rogers Sent: Sunday, January 23, 2005 10:59 AM To: Microcontroller discussion list - Public. Subject: Re: [PIC] TMR0 counter and RB0/INT help. . > I'm using the 16F84. I have about 100 in the parts box. Can't believe they > were being thrown away because they were loaded with obsolete (code > protected) software! > > I'll be running them on the usual 4mhz crystal. > > I was hoping someone on the list could supply my with (or point > > me to) some simple example code for using the TMR0 as counter John: You might try www.sq-1.com , there is a wealth of info here as well as www.piclist.com archives. Losts of sample code in either place. Suggest you use the F84 only as a stepping stone and then move on. Charles -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist