How about using a 32Khz crystal for the oscillator (or osc2 if the chip has it) and then using a timer/counter in the pic? Ken ----- Original Message ----- From: To: Sent: Wednesday, June 23, 2004 3:18 PM Subject: [PIC]:Crystal Timebase > Hi, > Does anyone know of a better way to obtain precision accuracy using a PIC as a stopwatch. I was using an Epson 16-pin DIP crystal oscillator/programmable divider outputting 100 HZ. They have discontinued the chip and my options are to use a 1KHZ crystal oscillator and divide it by 100 (2chips) or a 1MHZ AT crystal and divide it by 10000 (cd4059 ic 24-pin), etc. I was running this in the int. pin and simply counting hundreds of a second. > > Thanks, ed > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body