Dear ``embedded engineer'', embedded engineer on 2001-05-10 12:49:02 PM responded and said, > David Cary wrote: >> >> embedded engineer on 2001-05-09 04:13:16 PM casually >> mentioned >> > Subject: Re: [EE]: adding an external counter >> > A bigger problem though is reading T1. On the flash PIC >> > 16F873 it cannot be done as it can modify the contents of T1 itself. >> > That would corrupt the real time clock. See the errata for 16F873 for >> > example. >> >> Whoa now, hold on. Reading T1 corrupts the contents of T1 ? Say it ain't so ! >> >> Where can I find the errata pages ? > >www.microchip.com >Developer's Toobox | Literature >toward the bottom on the right is "Errata Document" Got it. Thank you very much. (Odd that the "search" function on the Microchip site doesn't find that page ...). Fortunately for me, that errata only applies to "external clock mode". I'm using Timer1 in "timer mode". (Couldn't you use Timer0 as your counter ?). -- David Cary -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu