Dont know if relevant, but i used rb7 as interrupt on change pin and it didnt work till i grounded (2K2) unused rb4-6 -----Original Message----- From: Jaume Aragay Badia To: PICLIST@MITVMA.MIT.EDU Date: 06 March 1999 13:01 Subject: noise on a pic 16f84 >Sorry, I sent to the list the msg for nazif. This was his msg on january: > >> Noise problem on 16c84 >> >> >> Dear sirs , >> >> Firstly I wish everybody happy new year, my problem is when ever I >> use pic device in a >> circuit I get noise problem I dont know what happens but any kind of >> parasites or something stops the execution of program cpu crashes. >> I usually take care on grounding while pcb drawing and also I put >> some little pot cores on vcc lines I put some 0.1 uF ceramic capasitors >> around the critical parts, Line filter on 220 Vac input but there is >> still some problems which makes me crazy. >> Is there any body have idea for. >> >> Best Regards >> Nazif Gunduc >> > >But any other help will be truly apreciated. :) > >Jaume. > >---------------------- > Jaume Aragay Badia > aragay@email.com >---------------------- >