LFSR code

Guest
Hey I'm really confused and could do with some help! I need to design
an 8-bit LFSR for use with a BIST system that I am also to design. I
need to use d-type flip-flops with an enable line and I cannot see an
example or a testbench that will help me do this? Hopefully someone
will be able to point me in the right direction!!!
 
<0310889@rgu.ac.uk> wrote in message
news:1175076969.671863.105840@d57g2000hsg.googlegroups.com...
Hey I'm really confused and could do with some help! I need to design
an 8-bit LFSR for use with a BIST system that I am also to design. I
need to use d-type flip-flops with an enable line and I cannot see an
example or a testbench that will help me do this? Hopefully someone
will be able to point me in the right direction!!!

Peruse Google or Xilinx, you'll find plenty of examples
Click to expand...
 
0310889@rgu.ac.uk wrote:
I need to design
an 8-bit LFSR for use with a BIST system that I am also to design. I
need to use d-type flip-flops with an enable line and I cannot see an
example or a testbench that will help me do this? Hopefully someone
will be able to point me in the right direction!!!
Click to expand...
Search for the function identifier
"randomize" in the testbench example here:

http://home.comcast.net/~mike_treseler/

then

random_byte_s <= randomize(random_byte_s);

Works for sim or synthesis.

-- Mike Treseler
 
On 28 mar, 11:07, Mike Treseler <mike_trese...@comcast.net> wrote:
0310...@rgu.ac.uk wrote:
I need to design
an 8-bit LFSR for use with a BIST system that I am also to design. I
need to use d-type flip-flops with an enable line and I cannot see an
example or a testbench that will help me do this? Hopefully someone
will be able to point me in the right direction!!!

Search for the function identifier
"randomize" in the testbench example here:

http://home.comcast.net/~mike_treseler/

then

random_byte_s <= randomize(random_byte_s);

Works for sim or synthesis.

-- Mike Treseler
Click to expand...
Mike, do you know any hw designer that blogs (about it) ?
That's one thing i miss a lot, relating to the sw world...
Cheers
-weber
 
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