In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote: I was always under the impression or thought I read that the resonators were not accurate for serial communications so that is why one would use a crystal oscillators. I wasn't aware that the SX28 had it's own internal programmable oscillator (32 KHz to 4 MHz). Thats fine and now I know. What I am still not clear about is the following: How does one know what value to use (32 KHz or 4 MHz internal setting or external resonator) if it automatically adjusts pause / timing statements? Do I just NOT use the DEVICE statement if I want the program to run faster. This means I must use either an external Parallax 4, 20 or 50 MHz resonator. Thanks, Timothy Gilmore ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=100952#m100962 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)