LCD over Ethernet

[Altera_Forum]

Hi,  

 I'm using the simple socket example on the DE2-115 board. It seems to work well. The program is written to take commands to turn on/off the leds and to display on the seven segment display. My final goal is to send data to the SDRAM of the DE2-115 board over ethernet from the PC. Next, I would like to modify the files to be able to send some data to the LCD (this way I can easily know if I have managed to send data or not). For this I created a new task to display on the LCD screen. And I gave it a low priority (means a higher number). I basically created functions and tasks just like the ones for LEDs. When I run the project as NIOS hardware, it compiles and loads onto the board but goes into a loop when the link has to be established. This is what it looks like:  InterNiche Portable TCP/IP, v3.1    Copyright 1996-2008 by InterNiche Technologies. All rights reserved.  prep_tse_mac 0 Calling DE2-115 Mac Address Finder Your DE2-115 Ethernet MAC address is 00:07:ed:ff:6b:c7 Your Ethernet MAC address is 00:07:ed:ff:6b:c7 prepped 1 interface, initializing... [tse_mac_init] INFO : TSE MAC 0 found at address 0x08222000 INFO : PHY Marvell 88E1111 found at PHY address 0x10 of MAC Group[0] INFO : PHY[0.0] - Automatically mapped to tse_mac_device[0] INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED MARVELL : Mode changed to RGMII/Modified MII to Copper mode MARVELL : Enable RGMII Timing Control MARVELL : PHY reset INFO : PHY[0.0] - Checking link... INFO : PHY[0.0] - Link not yet established, restart auto-negotiation... INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED INFO : PHY[0.0] - Link established INFO : PHY[0.0] - Speed = 100, Duplex = Full OK, x=1, CMD_CONFIG=0x00000000   MAC post-initialization: CMD_CONFIG=0x04000203 [tse_sgdma_read_init] RX descriptor chain desc (1 depth) created mctest init called IP address of et1 : 0.0.0.0 Created "Inet main" task (Prio: 2) Created "clock tick" task (Prio: 3) Acquired IP address via DHCP client for interface: et1 InterNiche Portable TCP/IP, v3.1    Copyright 1996-2008 by InterNiche Technologies. All rights reserved.  prep_tse_mac 0 Calling DE2-115 Mac Address Finder Your DE2-115 Ethernet MAC address is 00:07:ed:ff:6b:c7 Your Ethernet MAC address is 00:07:ed:ff:6b:c7 prepped 1 interface, initializing... [tse_mac_init] INFO : TSE MAC 0 found at address 0x08222000 INFO : PHY Marvell 88E1111 found at PHY address 0x10 of MAC Group[0] INFO : PHY[0.0] - Automatically mapped to tse_mac_device[0] INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED MARVELL : Mode changed to RGMII/Modified MII to Copper mode MARVELL : Enable RGMII Timing Control MARVELL : PHY reset INFO : PHY[0.0] - Checking link... INFO : PHY[0.0] - Link not yet established, restart auto-negotiation... INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED InterNiche Portable TCP/IP, v3.1    Copyright 1996-2008 by InterNiche Technologies. All rights reserved.  prep_tse_mac 0 Calling DE2-115 Mac Address Finder Your DE2-115 Ethernet MAC address is 00:07:ed:ff:6b:c7 Your Ethernet MAC address is 00:07:ed:ff:6b:c7 prepped 1 interface, initializing... [tse_mac_init] INFO : TSE MAC 0 found at address 0x08222000 INFO : PHY Marvell 88E1111 found at PHY address 0x10 of MAC Group[0] INFO : PHY[0.0] - Automatically mapped to tse_mac_device[0] INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED MARVELL : Mode changed to RGMII/Modified MII to Copper mode MARVELL : Enable RGMII Timing Control MARVELL : PHY reset INFO : PHY[0.0] - Checking link... INFO : PHY[0.0] - Link not yet established, restart auto-negotiation... INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED InterNiche Portable TCP/IP, v3.1    Copyright 1996-2008 by InterNiche Technologies. All rights reserved.  prep_tse_mac 0 Calling DE2-115 Mac Address Finder Your DE2-115 Ethernet MAC address is 00:07:ed:ff:6b:c7 Your Ethernet MAC address is 00:07:ed:ff:6b:c7 prepped 1 interface, initializing... [tse_mac_init] INFO : TSE MAC 0 found at address 0x08222000 INFO : PHY Marvell 88E1111 found at PHY address 0x10 of MAC Group[0] INFO : PHY[0.0] - Automatically mapped to tse_mac_device[0] INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED MARVELL : Mode changed to RGMII/Modified MII to Copper mode MARVELL : Enable RGMII Timing Control MARVELL : PHY reset INFO : PHY[0.0] - Checking link... INFO : PHY[0.0] - Link not yet established, restart auto-negotiation... INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED InterNiche Portable TCP/IP, v3.1    Copyright 1996-2008 by InterNiche Technologies. All rights reserved.  prep_tse_mac 0 Calling DE2-115 Mac Address Finder Your DE2-115 Ethernet MAC address is 00:07:ed:ff:6b:c7 Your Ethernet MAC address is 00:07:ed:ff:6b:c7 prepped 1 interface, initializing... [tse_mac_init] INFO : TSE MAC 0 found at address 0x08222000 INFO : PHY Marvell 88E1111 found at PHY address 0x10 of MAC Group[0] INFO : PHY[0.0] - Automatically mapped to tse_mac_device[0] INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED MARVELL : Mode changed to RGMII/Modified MII to Copper mode MARVELL : Enable RGMII Timing Control MARVELL : PHY reset INFO : PHY[0.0] - Checking link... INFO : PHY[0.0] - Link not yet established, restart auto-negotiation... INFO : PHY[0.0] - Restart Auto-Negotiation, checking PHY link... INFO : PHY[0.0] - Auto-Negotiation PASSED InterNiche Portable TCP/IP, v3.1   And this keeps going on. I know my question is a little vague since I haven"t posted what code I changed but would anyone know what could possibly be wrong by looking at the NIOS II console output above. Thanks!