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Code Protection Fuses

 
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Pret



Joined: 18 Jul 2006
Posts: 92
Location: Iasi, Romania

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Code Protection Fuses
PostPosted: Fri Feb 15, 2008 7:58 am     Reply with quote
I have a question.

I'm trying to build a bootloader on the beginning of the memory. Also i wish to protect that zone for accidental write. So... practically i should protect only the BL sector.

Also i wish to protect entire code memory from all sectors.... just because i want to avoid any illegal copy of firmware. But if i do so... can i still reprogram it from bootloader?
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sat Feb 16, 2008 11:16 am     Reply with quote
In the following post on the Microchip forum, a method is proposed
in which the code protection in a bootloader could be broken.
http://forum.microchip.com/tm.aspx?m=252258
You could investigate this, and see if it's true for your PIC. If so,
then your code will not be secure.
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