Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

how to protect our firmware?

Sobakava

Full Member level 6
Full Member level 6
Joined
Mar 27, 2002
Messages
350
Helped
8
Reputation
16
Reaction score
8
Trophy points
1,298
Activity points
3,342
I read about hack attacks of code protections of microcontrollers
(PICs etc.) How safe are the code protections? How to protect
our work from thiefs? :evil:
 
As far as I know it is safer to use non flash OTP parts.

They have real fuses for protection inside which can not be recovered by erasing parts of the flash with voltage spikes ...

regards
 
yes

Hi

I agree with c-man that used the otp part as replacement test your firmware
in flash part and sold your product on otp part

regards
fragrance
 
Use a MCU that has EEPROM or flash memory inside
Some MCUs have mechanism to prevent the ROM code
being read out when protected.
 
I think that also for flash type, read the protected firmware is very difficult, I have read some site about micro hack, but is pure philosopy, I think that if you try to delete eeprom with fuse code you delete all flash memory. Personally prefer spend my time to write a new code that try to read immodificable hex code
 
Check it please.Maybe useful for you.

**broken link removed**

Analyzer.
 

LaTeX Commands Quick-Menu:

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top