Terry Nuttall wrote: > Dear All, > My engineer has a holiday booked before he managed to get to the bottom > of this so I wondered if anybody could help me out. > > We have an AS3144 programmer and are programming 12F629 parts in a semi > automated system. Not familiar with it, but probably not important that we do. > > The 12F629 has a preprogrammed microchip of BG flags and an oscillator > calibration word. A programming sequence (writing a file) causes this information to be lost. > Should we be erasing everything before we write our file or do we need to > read the information from the appropriate areas first and incorporate this > into our file for writing back? No, you have to read the calibration word, and save it somewhere so that it can be re-installed, as it is unique to each PIC. Most automated programmers can handle this automatically. > > As you've probably guessed by the way I've worded the question I'm > not familiar with PIC programmers so if anyone can offer any help > I would be most grateful. That's OK. Why did you not get a vacation, too ? --Bob > Regards > > Terry > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- Replier: Most attachments rejected -------------- Bob Axtell PIC Hardware & Firmware Dev http://beam.to/baxtell 1-520-219-2363 -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu