use the calc i did few month/years ago.. FREEBIES
http://www.picbasic.co.uk/forum/atta...6&d=1118138371
click on the button at the right twice and you're in business.
Now using the USART and this calc, you may discover that it will be possible to acheive a nice error % even with a 4MHZ clock.
HTH
Bookmarks