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Altera_Forum
Honored Contributor I
845 Views

TSE hardware design

hello, 

 

I am trying to make a Ethernet connection to the pc with a DE2-115. the design should be in hardware I don't want to use the NIOS soft core. 

 

does anyone have any experience about setting up an Ethernet connection using a VHDL design. 

 

ore can someone provide me with a working sample code/project? 

 

kind regards. 

JR
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5 Replies
Altera_Forum
Honored Contributor I
43 Views

I think there are some examples of UDP offload. But they will still use a nios cpu for network admin (etc).

Altera_Forum
Honored Contributor I
43 Views

You'll hardly set up the PHY without Nios... The rest stuff can be done only in hardware.

Altera_Forum
Honored Contributor I
43 Views

Hi, 

 

please have a look on my thread called "TSE by using System Console on DE2-115" ... it could answer your question.
Altera_Forum
Honored Contributor I
43 Views

first of all thanx for the fast response... but is it really that hard to make a Ethernet connection without NIOS :s 

 

@rickfan: I will look at your post hopeful it works for me. 

 

but i'm still open for new suggestions...
Altera_Forum
Honored Contributor I
43 Views

 

--- Quote Start ---  

 

 

...is it really that hard to make a Ethernet connection without NIOS :s 

 

 

--- Quote End ---  

 

 

 

If you are using a PHY chip such as National's DP83848, you can set up the basic operational modes using pin configurations. The data sheet for the PHY will explain this. When configured for Auto-negotiate mode the PHY will establish an ethernet connection automatically and enable you to transfer raw data in nibble-wide format - all without software intervention. If you want anything more sophisticated than this, such as a TCP/IP stack, your best solution would be using a Nios II rather than VHDL. 

 

It can be a steep learning curve to implement a Nios II, but when you consider setting up TX/RX buffers, packet processing, and all else required for an IP stack, a VHDL solution would be quite a challenge, too.
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