Hi Nigel, What were the changes you made to the erase routines? I have used the PIC16F84A in my El Cheapo without any problems, but I would like to know what to do if it bites somebody. Thanx, myke ----- Original Message ----- From: "Nigel Goodwin" To: Sent: Friday, May 04, 2001 1:52 AM Subject: Re: [PIC]: P16F84 'A' Fun and Frolics > In message , Andrew > Errington writes > >According to Microchip's data sheet for the PIC16F84A the only differences > >noted (Table B-1 in Appendix B) are: > >1) Max voltage is now 5.5V, but top temperature +125degC > >2) Max frequency increased to 20MHz > >3) EEPROM cycle faster > >4) Rext range starts at 3kohm > > There are also differences in the programming requirements (although I > don't think MicroChip mention it!). Many programmers (mine amongst them) > wouldn't program the 16F84A, I had to alter the erase routines to cure > the problem. > -- > > Nigel. > > /--------------------------------------------------------------\ > | Nigel Goodwin | Internet : nigelg@lpilsley.co.uk | > | Lower Pilsley | Web Page : http://www.lpilsley.co.uk | > | Chesterfield | Official site for Shin Ki and New Spirit | > | England | Ju Jitsu | > \--------------------------------------------------------------/ > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.