scrambler/descrambler

[brian]

Hi all,

I need a VHDL source code scrambler/descrambler.
Polyn : x ^ 7 + x ^ 6 + 1

I found some information on web (LFSR xilinx, etc...), but I have some
problem with my example.

Thanks a lot for any reply about this subject (web, litteratur,vhdl
code...).
Brian

 

[Ralf Hildebrandt]

brian wrote:

I need a VHDL source code scrambler/descrambler.
Polyn : x ^ 7 + x ^ 6 + 1

I found some information on web (LFSR xilinx, etc...), but I have some
problem with my example.

Post your code _and_ what you think about the problem / your ideas for
solution.

A scrambler is nothing more than some Flipflops (shift register) and
XOR-gates (for the feedback).

Ralf