Hi, I tied the "master" PIC's CLKOUT to the "slave" PIC's CLKIN directly, and both ran w/o any problems. I hope this helps. Imre On Fri, 25 Jun 1999, May Scott wrote: > I can't imagine the two oscillators getting along very well, but I could be > wrong. The safest be would be to take the oscillator output (wired as per > normal for one PIC), and buffer this through a 74HC14 or vaguely similar, > and feed it's output to the clock in on the other PIC. I've done this with > the 8051 types, and it works a charm... > > Till later, > Scott. > Û¼¡`¡¼Û¿,üü,¿Û¼¡`¡¼Û¿,üü,¿ > Scott May. > Hydrographic Support > 1345 Ipswich Road > Rocklea. > Ph +617 3892 5610 > Fax +617 3848 5191 > scott.may@dnr.qld.gov.au > scott@smartdata.com.au > Û¼¡`¡¼Û¿,üü,¿Û¼¡`¡¼Û¿,üü,¿ > > > -----Original Message----- > From: William Ruehl [mailto:wruehl@SNET.NET] > Sent: Friday, 25 June 1999 10:11 > To: PICLIST@MITVMA.MIT.EDU > Subject: Dual PICs one Xtal. > > PICsters, > What is the best way to have two 16F84's on the same > board share > the same crystal? Can the chips share the crystal in > parallel? or is > there > a more elegant approach? > > Bill Ruehl > >