Post by thread:Accessing configuration within code

Hi, I was wondering if it is possible to access the configuration bits (read) from t he running code. (Using 16f84 or 12c67x currently, although protecting code in a 16f84 is as much protection as a "(c)" stamped on the chip!!) Basically I want to make a chip fail to function if I forget to set the protecti on bits, better to fail and get stopped at QC than have them go out unprotected. (If this is not available.. Microchip: this might be a good thing to impliment) Regards Scott.

At 22:25 20/01/99 +1100, you wrote: >Hi, >I was wondering if it is possible to access the configuration bits (read) from the running code. No. >Regards >Scott. > -------------------------------------------------------- Jim Robertson Email: spam_OUTnewfoundTakeThisOuTpipeline.com.au http://www.pipeline.com.au/users/newfound --------------------------------------------------------

According to Microchip data, the only time these bits are accessible is during programming. I just ran into this because I was trying to set up the PIC for a crystal timer (the program defaults to RC) and the book that I was using didn't cover how to access these bits for programming.

When you program the chip, you can add a couple of RETLW's with the constents of the configurations bits. This will let the program check what config bits were programed. Why is this necessary? Are you expecting to use more than one configuration for the same program? (I'm sure there is an excellent reason for this, and I am interested in what the application is.) Mark Moss Amateur Radio Operator, Technician, and General Tinkerer On Thu, 21 Jan 1999 00:56:01 +1100 Jim Robertson <.....newfoundKILLspam@spam@PIPELINE.COM.AU> writes: {Quote hidden}>At 22:25 20/01/99 +1100, you wrote: >>Hi, >>I was wondering if it is possible to access the configuration bits >(read) >from the running code. > >No. > >>Regards >>Scott. >> >-------------------------------------------------------- >Jim Robertson >Email: newfoundKILLspampipeline.com.au > >http://www.pipeline.com.au/users/newfound >-------------------------------------------------------- > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]