YES NOPE9 wrote: > May I have a copy of the pdf ? OK, I put a copy again at http://www.embedinc.com/temp/isol1.pdf. This time don't wait a month to download it. Stuff in the temp directory will dissappear at unpredictable times without notice. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist