Ethernet on Altera FPGA: Help required

Hi ...
I'm very new to working with altera and quartus.I'm working with NiOS II
development board(Cyclone III EP3C25). I have to create a design which has
a NiOS  processor, SRAM, Ethernet MAC and Ethernet Management Interface and
other components.But the MAC and MI are custom components and not altera's
IPs.

I need to know how to instantiate these components in SOPC builder and I'm
not aware of the settings to be done. The  thing I did is I copied my
custom component folders into C:\altera\81\ip\altera and included the
class.ptf files of components in alteracomponents.ipx file. Is this method
correct to create a component? 

Thanks and regards
Renu

renupriya wrote:

> I need to know how to instantiate these components in SOPC builder and I'm
> not aware of the settings to be done. The  thing I did is I copied my
> custom component folders into C:\altera\81\ip\altera and included the
> class.ptf files of components in alteracomponents.ipx file. Is this method
> correct to create a component? 

No. Start with your HDL files in your own directory. Then use the
component editor in SOPC to create a new component.

To make the process easier, you should use the naming conventions
described in the SOPC documentation for the top-level entity ports. What I
do, if I'm using a 3rd-party module, is create a top-level wrapper around
the core with the correct naming convention.

There may be a complication with the TCP/IP stack if you're using your own
MAC. IIRC, at least some time ago, the system library dialogue wouldn't
allow you to add the TCP/IP stack without a recognised MAC in the project.
I'm sure it can be done, may just be some fiddling to do.

Regards,

-- 
Mark McDougall, Engineer
Virtual Logic Pty Ltd, <http://www.vl.com.au>
21-25 King St, Rockdale, 2216
Ph: +612-9599-3255 Fax: +612-9599-3266