I can Highly Recommend this program for anyone using PIC's.

It does a fantastic job of calculating those tedious formulas that look so complicated in the datasheet.
  • Need to know what value to load in a Timer for a specific frequency or period?
  • Want to know which prescaler will give the best results?
  • Do you know the reload value but want to find out what frequency it will produce?
  • Want to use the USART without HSERIN/OUT
  • Want to use 10-bit PWM?
It's all there, and more.

Everyone should have a copy of this sitting in their QuickLaunch toolbar.