Looking for LFSR code

I really Need it
just a VHDL code for LFSR ( 8 bits ) to be implemented on Spartan 3
XC3S200

 

[Andrew FPGA]

On Mar 1, 11:53 am, h.ali.ma...@gmail.com wrote:

I really Need it
just a VHDL code for LFSR ( 8 bits ) to be implemented on Spartan 3
XC3S200

Sure I can post the code for you. But first a few questions. What
polynomial do you want to use for the LFSR?

Regards
Andrew

 

[Thomas Stanka]

On 28 Feb., 23:53, h.ali.ma...@gmail.com wrote:

just a VHDL code for LFSR ( 8 bits )

LFSR <= LFSR (6 downto 0) & (LFSR(7) xor LFSR(6));

You should ensure the polynome fits your needs.

bye Thomas

 

[Martin Jones]

You can download a fun little app to mess about with LFSRs at this link:

http://www.jnicolle.com/?page=LFSR

Martin

h.ali.maher@gmail.com wrote:

I really Need it
just a VHDL code for LFSR ( 8 bits ) to be implemented on Spartan 3
XC3S200

 

[Mike Treseler]

h.ali.maher@gmail.com wrote:

I really Need it
just a VHDL code for LFSR ( 8 bits ) to be implemented on Spartan 3
XC3S200

See the function randomize
and the constant mask_c
in the testbench here:
http://home.comcast.net/~mike_treseler/


-- Mike Treseler