A problem with crc-32 check

[grimreaper]

I`m doing a project in VHDL concerning ethernet, and I have a problem with
CRC-32 (polynomial x"04C11DB7").
CRC is initialized into x"ffffffff", after sending all the bytes of the
frame 4 bytes with zeros are sent to CRC generetor to calculate CRC. Is that
the value of CRC I have to send to the next layer (phy -> ethernet) after
sending the frame?
I tried everything, but CRC is never x"00000000"...

Here`s the crc-32 generator I`m using:
http://www.itee.uq.edu.au/~peters/xsvboard/stack/stack.htm

 

[Mike Treseler]

grimreaper wrote:

I tried everything, but CRC is never x"00000000"...

It isn't supposed to be zero.
You are confusing the transmitted FCS
and the remainder "checksum" calculated
by the receiver.

http://groups.google.com/groups/search?q=ethernet+magic+remainder+c704_dd7b

-- Mike Treseler

 

[grimreaper]

"Mike Treseler" <mike_treseler@comcast.net> wrote in message
news:4c971jF14db8hU1@individual.net...

grimreaper wrote:

I tried everything, but CRC is never x"00000000"...

It isn't supposed to be zero.

It is. I got it...