Hi! NOP instruction takes 1 instruction cycle=4 processor clock cycles. That gives that one clock cycle takes 0,000122s/4=0,0000305s. frequency of clock =1 / time of one cycle =1/0,0000305s=32786,885245901639344262295081967Hz. That was based on 32,786kHz clock(or cristal). Regards, Samo -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Tal Bejerano - AMC Sent: Saturday, July 20, 2002 1:16 AM To: PICLIST@MITVMA.MIT.EDU Subject: [PIC]: NOP Delay Hi 2 All A friend (really new to pics) ask me about the NOP delay He look at some samples at piclist archive and found that in one sample nop gives 0.122msec he's question is: what cause the delay time? Regards Tal Bejerano AMC - ISRAEL -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body