David,

It is a 16F876. How do you do a bulk erase on MPLAB. I have been trying to figure out what I did
to code protect it and it says "code protection all" does it mean that the chip is useless and I
can not use it anymore. My understanding from the data sheet that there are three memory areas
that can be protected; these are data memory, program memory and EE (flash) memory and these are
set with the appropriate confid ID bits. I was fiddeling around with these and protected the lot.

I'll get you the actual config ID for you tonight and e-mail it tomorrow, I just do not have it on
me at the moment.

Cheers.


-----Original Message-----
From: David Dunn [mailto:ddunn@tcainternet.com]
Sent: Friday, 4 January 2002 3:49 PM
To: PICLIST@mitvma.mit.edu
Subject: Re: [PIC]: Removing Code Protection


what PIC is it ? if it's a flash part, you'll have to do a bulk erase on it to get it un
protected.

dld

On Thu, 3 Jan 2002 20:35:29 -0800, Omer Can Sirikci wrote:

>Hi All,
>
>Happy New Year to everyone.
>
>I am new to PICs. I have recently purchased a PIC Programmer called "Newfound Warp-13 PIC
>Programmer" from Dontronics in AUS. It is compatable with MPLAB. I have also purchased four
>16F876-20 MCUs for $27.00AUD each, bit expensive I think ....
>
>Anyway, I have been trying to read and write some hex code that I have found on the Internet and
>playing around with the different options on the program that was supplied with the programmer as
>well as MPLAB. I have "code protected" one of the PICs. Now I can not use it.
>
>Could anyone tell me if there is a method to remove that?
>
>I think I need to do some tutorials. Could you please also tell me if there is a good web site
and
>what book/s you would recommend?
>
>Cheers and thanks in advance. :-)
>
>Omer Can
>
>=====
>Kind Regards,
>Omer Can Sirikci B.E.(Electrical)
>ATACOM
>ABN 34 815 089 861
>24 Susan Street, AUBURN NSW 2144
>Phone: 0418 695 766
>e-mail: omercan@yahoo.com
>
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>
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>


David Dunn
Digital Racing Products

dave@digitalracingproducts.com
www.digitalracingproducts.com

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=====
Kind Regards,
Omer Can Sirikci B.E.(Electrical)
ATACOM
ABN 34 815 089 861
24 Susan Street, AUBURN NSW 2144
Phone: 0418 695 766
e-mail: omercan@yahoo.com

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