I am currently designing a project using 2 PIC micro (16F877), the 1st PIC is for Master and the 2nd one is for Slave. I have some doubts if I really need put 2 crystal oscillator for clocking to each PIC (Master and Slave). Or, 1 crystal oscillator would be enough to be used as common clock for master and slave PIC.
Re: Do I really need 2 Xtal Oscillator when Using 2 PIC micr
You can use only one crystal ..
Connect a crystal in typical configuration to one PIC, then connect a buffer gate to it's OSC2 (out) pin and feed the buffered clock signal to the second PIC to OSC1 pin ..see picture below ..
Re: Do I really need 2 Xtal Oscillator when Using 2 PIC micr
Thanks guys, actually I am still deciding which configuration I would follow considering the production cost and layout constraints. Anywayz, thanks for the info.