> So, just curious.... > > The percentage off related to the baud rate, means it > would be hard pressed to communicate with a device > running the standard baud rate. > > What about two PICs talking over serial....at that > point if they are both off by the same percentage, > then it really shouldnt matter? Correct. In that case, you're simply using a non-standard baud rate, and unless you go through a bridge of some sort that expects a standard baud rate, you'll be fine. You still need to account for oscillator error, though. For example, let's say your particular oscillator technology guarantees +/-1% accuracy. In that case, you might be in trouble, because if one device is at +1% and the other at -1%, the 2% total error may (or may not) cause problems. Most of the wise elders of the list suggest keeping error at or below 1%. I'm not inclined to argue with them. Mike H. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist