Communication btw two NIOS systems via Ethernet

I think a better example, for what you'd like to do, is SSS (Simple Socket Server). It sets up a basic telnet-like server.

Your options are numberous, with respect to how your communication protocol should work. For a simple master slave setup, your slave would be running the "telnet-like" server, and your master would connect to it when it needs to send a command. The slave would then respond to whatever command the master just sent. The format and content of the messages you pass is up to you.

You need to specify how you'd like the communication to function, between the two processors, and read some literature on sockets-based programming, before you can really move forward with this.

Cheers,

- slacker