At 01:04 PM 11/28/2004, John Pearson wrote:

>How secure are the ATMega chips, the M8 and M32 specificly, when the lock 
>bits are set (serial and parallel access)?

Anything can be cracked, but it would be pretty hard.
Once you've set the lock bits, the only thing you can do is fully erase the 
part.
Unlike the Zilog, setting the lock bits does not remove your ability to 
have the program read strings from rom.

The real question is, with a logic analyzer on all the pins, how hard would 
it be to write the spec to rewrite your code from scratch?

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