> Thank you Wouter! :o) Trouble is that this is for > ICSP, There is no distinction between "in circuit" or not if you are using high voltage programming. As Wouter said, the trick is to raise MCLR to Vpp before bringing up Vcc. That may or may not be possible, depending on your circuit. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body