Harry H. Arends wrote: > Is there a document that handles the ICSP Yes, it's called the "Programming Spec" for the particular subfamily of PIC you want to program. You might also want to look at my general introduction to ICSP at http://www.embedinc.com/picprg/icsp.htm. ******************************************************************** 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