Solved

opencores.com Ethernet core on Altera  - how to connect to male PCI interface?

Posted on 2008-10-18
1
835 Views
Last Modified: 2013-11-13
Hello,

I have some ideas for skipping TCP in a high level application, but first things first - right now I just want to take the "Ethernet MAC 10/100 Mbps" core (http://www.opencores.com/projects.cgi/web/ethmac) and connect it to a regular PC.

I have the following Altera FPGA:
http://www.altera.com/products/devkits/altera/kit-cyc3-starter.html

It's my understanding that a PHY chip is needed that ultimately interfaces with a female RJ-45 connector.

I'm guessing that the "wishbone" interface from the Ethernet core will ultimately be wired to a male PCI interface? Conceptually how does this work? I tried to read the wikipedia entry on wishbone and it sounds like greek to me (my background is VHDL and then higher level languages). I also read somewhere that the Altera's Avalon bus can be used?

At first I thought this was going to be easy.. I though I could just wire 32 of the FPGA's output pins to the 32 PCI pins.. wishful thinking :)
0
Comment
Question by:Juzzam2
1 Comment
 
LVL 6

Accepted Solution

by:
Mc7400 earned 500 total points
ID: 22783887
Hello,

To simplify the life of communications between the components industry has created a bus called WISHBONE bus, just think of it as PCI bus while it is used only between chips CPUs, and SoC. the following link has a brief description.

http://en.wikipedia.org/wiki/Wishbone_(computer_bus)

Now the Ethernet opencore has two interfaces, one interface to connect to PHY and the other to WISHBONE bus to connect it to the RISC and to external memory, as the documentation claims.

Finlay, if your intention to connect the Ethernet to PCI, then opencore has another project to bridge between WISHBONE and PCI; So you can connect the two cores inside the FPGA and go! But not sure if it will work, anyhow in common sense it should work and reach your goals with regards.

HTH
0

Featured Post

Scale it in WD Gold

With up to ten times the workload capacity of desktop drives, WD Gold hard drives employ advanced technology to deliver among the best in reliability, capacity, power efficiency and performance.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Hello All, I have been training on Multicast for a while now and whenever I start the topic , I find out that my friends /  Colleagues mention that they do not know how to test Multicast Joins. As most of the multicast would be video traffic and …
There is an easy way, in .NET, to centralize the treatment of all unexpected errors. First of all, instead of launching the application directly in a Form, you need first to write a Sub called Main, in a module. Then, set the Startup Object to th…
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now