I've read the 16F628 datasheet but i'm still in the dark about one thing; if I do HVP ICSP using MCLR, and program the PIC to have the MCLR pin as an IO pin (ie set it to internal MCLR), can I then reprogram it *again* at a later date using HVP ICSP MCLR?? The one page in the datasheet is very sketchy re this issue. :o) -Roman -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body