10-14-2011 12:51 PM
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
10-17-2011 06:38 AM
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...
10-20-2011 08:24 PM
--- 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.