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how to protect the code on the chip

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jkmaro

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hi all

if making a design for control card using a microcontroller , how can i protect my code from reloading from the chip to PC again?

regards
 

jkmaro said:
hi all

if making a design for control card using a microcontroller , how can i protect my code from reloading from the chip to PC again?

regards

hi
if u want to protect code in ur chip plx write in Option Protect Code but i dont know what program you use !!!! i think all program write chip it have option for Protect Code!!!!

buntheun
 

Post the software you use so we can guide you accordingly.
 

there's something called lock bits sometime called fuse bits i think that are used to lock the code..

give some details of your project and definitely someone can tell you exactly how to do it..

interestingly, on a sidenote, a hell lot of work is going into how to recover programs that have been protected this way, and people have found ways around such protection too!

regards,
wiztronix
 

nomad13 said:
Post the software you use so we can guide you accordingly.

That was a clever one!!!HEHEHEHEHE
If he want it the software to be free he wouldnm't ask how to protect it! LOL

Try to locate this lock bits. I know PIC have one - I don't remember how you invoce it.

D.
 

many thanks

but which program do you suggest to use?

Added after 3 minutes:

by the way , the idea here to protect my eeprom or microcontroller from beeing erased or stollen
so i hope to find more details about that
 

HI THERE,

YOUR THINKING IS GOOD. BUT IT IS IMPOSSIPLE TO PROTECT YOUR DATA BEING ERASED IN PIC.
IF YOU WANT U CAN USE SOME OTHER CHIP.
 

i suggest you guys use new roms, they have an option of shorting hte output which keeps the data intact
 

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