Post by thread:Migrating to OTP 8 pin parts with EEPROM

Hi! I have stable code know running on 12c509 but I want to migrate to an EEPROM part. Firmware stored in EEPROM should be able to be modified periodicaly. Can I do that with a pic programmer once program code is definitely burned. Thanks a lot! ------------------------------------ netQ <spam_OUTnetquakeTakeThisOuTinnocent.com> http://virtuaweb.com/picprog "Home of amateur PIC programmers..." -----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.2 mQCNAzV38BkAAAEEALfWv9j3f+tZ+z2IW+2o9Ebx4bUGnHjHPqIe0a6yVKawaeV/ Y4I6L2/A0ddbVMG8+qJ0MvHNkr3DzYkpW+hTl9zAzXkKBdZ3GA5bbvot7entl/O2 YDtRWUV730koxBo5iFFUbJH5kbmkox+h3znj34zPnZNWzNaqOAwol3wABfBNAAUT tBxOZXRRIDxuZXRxdWFrZUBpbm5vY2VudC5jb20+ =0bVU -----END PGP PUBLIC KEY BLOCK-----

Yes, you can program the same flash chip repeatedly with a pic programmer. Once nice thing (at least with the Picstart and MPLAB that I'm using) is that the entire chip gets written each time, so you don't have to worry about stray code laying around on the chip. However: I don't think Microchip makes flash parts smaller than 18 pins, which means no direct flash equivalent of the 12c509. --- German <.....netquakeKILLspam@spam@INNOCENT.COM> wrote: {Quote hidden}> Hi! > I have stable code know running on 12c509 but I want > to migrate to an > EEPROM part. Firmware stored in EEPROM should be > able to be modified > periodicaly. Can I do that with a pic programmer > once program code > is definitely burned. > > Thanks a lot! __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

Now, you can have 8 pin parts with EEPROM when using PIC 12CE50X or PIC 12CE6XX. On Mon, 20 Sep 1999, Mike Mansheim wrote: > However: I don't think Microchip makes flash parts > smaller than 18 pins, which means no direct flash > equivalent of the 12c509. > Bruno