On Tue, 9 Mar 2004, whitestripes wrote: > Windowed parts (/JW) have to be to erased by UV light, like the old EPROMS. > Other "C" parts are OTP (One Time Programmable) and can't be erased. "F" > parts are Flash type ones and are electronically erasable (up to at least > 1000 times), so they don't need UV light and even if you keep them 10 years > under UV I don't expect them to get erased! > > Older Flash parts like 16F84 couldn't be erased after the copy protection > bits were "blown out". I have really doubts about this... even the 16C84 could be erased. The story was for windowed parts not for flash. top 10 wishes, Vasile http://surducan.netfirms.com Newer parts can, but they need to be bulk erased > first to reset the copy protection bits. I believe that the 16F874 belongs > to the ones that can be erased. If not, I'm sure someone will jump right on > to correct me! > > John Spiliotopoulos/Greece > > ----- Original Message ----- > From: "Paul James E." > To: > Sent: Monday, March 08, 2004 1:46 PM > Subject: Re: [PIC]: Erase Code protected PIC > > > All, > > As I have said before a few times on this list, I had a PIC C672 that had > gotten code protected (Windowed Part). I couldn't get it to erase, so I > ... > Regards, > > Jim > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.