On 24/11/10 21:10, Dwayne Reid wrote: > One consequence of these experiences is that I now tend to use only > real crystals whenever I need to run at 20 MHz. That's a very tiny > percentage of the projects that I (we) do here. Everything else runs > at 4 MHz (either internal RC Oscillator or external resonator) and we > have never had a problem with using 4 MHz resonators. I don't think I've ever used a resonator.. I standardised on crystals=20 (Rakon, Abracon and Golledge) early on, and haven't really seen the need=20 to try anything else... --=20 Phil. piclist@philpem.me.uk http://www.philpem.me.uk/ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .