Changes between Version 3 and Version 4 of MultihopReferenceDesign


Ignore:
Timestamp:
Apr 2, 2007, 4:02:23 PM (17 years ago)
Author:
chunter
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • MultihopReferenceDesign

    v3 v4  
    11= Multi-hop OFDM Networking Reference Design =
    22
    3 By default, this project creates a custom wireless ethernet hub between computers attached to two WARP boards and uses a third WARP node has a relay. The project treats ethernet packets as payload only; the WARP board performs no IP processing whatsoever. The following are two example applications.
     3By default, this project creates a custom wireless ethernet hub between computers attached to two WARP boards and uses a third WARP node has a relay. The project treats ethernet packets as payload only; the WARP board performs no IP processing whatsoever. The following is an example configuration.
     4
     5[[Image(multihop.jpg, align=center, 800)]]
    46
    57
    68== Example System Configuration 1 ==
    79
    8 The user will need to supply two computers and two WARP nodes (1 node = 1 FPGA[v1.2] + 1 Radio[v1.4]). The computers need to be configured to have hardcoded IP addresses within each other's addressable range. In other words, they must be in each other's subnet to be able to talk to one another. For example, one computer can be 10.0.0.8 and the other can be 10.0.0.9 and each can have a subnet mask of 255.255.255.0.
     10The user will need to supply two computers and three WARP nodes (1 node = 1 FPGA[v1.2] + 1 Radio[v1.4]). The computers need to be configured to have hardcoded IP addresses within each other's addressable range. In other words, they must be in each other's subnet to be able to talk to one another. For example, one computer can be 10.0.0.8 and the other can be 10.0.0.9 and each can have a subnet mask of 255.255.255.0.
    911
    10 One FPGA board '''must''' by configured as Node 0, and other as Node 1, using the on-board dip switches. The switch closest to the power supplies represents the node value. When the program is downloaded, the seven-segment LCDs should show the node values.
     12One FPGA board '''must''' by configured as Node 0, and other as Node 1, using the on-board dip switches. The switch closest to the power supplies represents the node value. When the program is downloaded, the seven-segment LCDs should show the node values. These nodes must be connected to the computer terminals via Ethernet, as shown above. A third, Node 2, must be configured with the bitstream and stand alone. Being the relay, it needs no computer to connect to.
    1113
    12 Using ethernet, connect one PC to one board, and the other PC to the other board. Note, if the PCs are using older network cards that do not support auto MDI/MDI-X, the user may need to provide crossover ethernet cables instead of standard cables. Once the boards are connected and configures, any traffic directed to one computer's IP address from the other computer will be forwarded.
     14Note, if the PCs are using older network cards that do not support auto MDI/MDI-X, the user may need to provide crossover ethernet cables instead of standard cables. Once the boards are connected and configures, any traffic directed to one computer's IP address from the other computer will be forwarded.
    1315
    14 == Example System Configuration 2 ==
    15 
    16 The user will need to supply one computer and two WARP nodes. Enable DHCP on the computer (most likely already enabled, unless the user tried the first configuration).
    17 
    18 One FPGA board '''must''' by configured as Node 0, and other as Node 1, using the on-board dip switches. The switch closest to the power supplies represents the node value. When the program is downloaded, the seven-segment LCDs should show the node values.
    19 
    20 Connect the PC to a board using a standard or crossover ethernet cable. Connect the other board to an internet source (e.g. the wall, a router, etc). The computer will then be able to access network resources via the WARP OFDM link.
    2116
    2217