×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Reverse engineering of an Altera PLD ?

Reverse engineering of an Altera PLD ?

Reverse engineering of an Altera PLD ?

(OP)
This was "Could a PLL do the job ?"

We have now found out that the pulses are generated in a Altera 7064 PLD. (44 pin)

We use Altera ourselves and should have the software, but can you reverse engineer such a thing ?
That is, read whatever is in the chip and get the state lines or what ever out so they can be modified ?

We can always hope the security bit is not set

RE: Reverse engineering of an Altera PLD ?

It may be simpler just to design the circuit for the PLD
from scratch. Do you have the schematics for the rest of
the circuit? Does it work sufficiently well ?



 

<nbucska@pcperipherals.com>

RE: Reverse engineering of an Altera PLD ?

Or ask for the source code.....

RE: Reverse engineering of an Altera PLD ?

Have you tried freezing or heating the part, to see if it changes anything to the problem?
If it does then it means that something is borderline.  If you have the Altera development kit, that you can read and program similar devices, perhaps that reading the device and programming another one with the same code may produce a result.  Or maybe burning the same code into a different speed grade can also produce a change.
Does the manufacturer of your camera still exist?

RE: Reverse engineering of an Altera PLD ?

Most programmable logic chips have security bit that once programmed, the program cannot be read out. These can be defeated but only with great effort and physical destruction of the chip.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources