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protect microcontroller against reading

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kamillas

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With what method, I protect my program against reading ? ie I want to transfer a program to microcontroller, and in the program, which statement I make, so that will protect against miocrocontroller reading ? language ccs
 

Normally it is not a program statement (There is no assembler or C statement.), but a so-called 'fuse' or setting
that you need to adjust via the programmer.
It is against the spirit of the engineering community however ; )
 

When programming uC use Protection or Code Protection option/fuse. When you read uC will show only OO or FF in location of code. But.... everything is possible in China & Russia. There is companies which hack uC and read firmware with very sofisticated equipment, of course for money.

Take a deep breath and open this page :
https://www.break-ic.com/

They can make complete clone of PCB with slogan key in hands. :cry:


Read this additional material :
https://www.cl.cam.ac.uk/~sps32/mcu_lock.html
https://russiansemiresearch.com/en/Service/
https://hackaday.com/2011/06/27/bunnies-archives-unlocking-protected-microcontrollers/
 
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hi.as I know you can use fuse bit to protect your programming.when you use codvision to program your micro,there is a option on wizard which can help you.
regard
pesarirouni
 

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