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Title: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: tango on September 06, 2009, 09:00:33 09:00 Can someone post som example or link HOW TO ?
I need to read locked ATTINY2313. Best regards to all. Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: gem1144aaa on September 06, 2009, 02:31:57 14:31 Hi tango
forget it . find this link first then decide http://www.sonsivri.com/forum/index.php?topic=2815.0 Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: jestanoff on September 22, 2009, 06:21:21 18:21 In older Atmel microcontrollers had a chance to read the contents by reducing the voltage of the microcontroller, but the release of avr series I think this bug is resolved.
Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: chinninitin on November 03, 2009, 05:54:46 17:54 Friends,
Instead of posting for help here and trying and wasting time,, one can write code in 50% of this time :-) Try atleast ;-) Chinni Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: DarkClover on November 03, 2009, 07:55:13 19:55 There is a way but it's very very very complicated.
First you have to buy some chemicals (strong acids and methyl alcohol). Then you need precision mechanics tools, a Oscilloscope,a good Logicanalyser and a very good microscope. After you got everything view this YouTube video: http://www.youtube.com/watch?v=tnY7UVyaFiQ Nearly the same way you'll get the data out of the ATtiny2313. If I get some other method's I'll post it here. Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: DarkClover on November 04, 2009, 05:28:23 17:28 Another method:
Use the Logic analyser from method 1 to monitor and log the pins from the ATtiny2313. Maybe with that you can reverse engineer the code. Title: Re: HOW TO GET PROGRAM FROM LOCK ATTINY2313 Post by: cncbasher on November 04, 2009, 06:24:25 18:24 unless you have $$$$$$$$$ , or a university's budget don't even try . there again if you did you would not need to reverse engineer the code
many chips have protection and code encryption built in , and poking the chip will infact deliberately destroy it , microchip did in the early days have a poor fab plant which allowed a few tricks to be used to open the fuse bank and allow the code to be read , but these day's they are an order of a few magnitude more secure , companys are demanding more security to their IP rights . many companys now rather than code the chip themselves , have the fab plant build and program the chip before delivery , and is part of the master chip and in this case cannot be read out . |