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Altera_Forum's avatar
Altera_Forum
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15 years ago

DM9000A Hanging !!

Hi, has anybody encountered a similar problem ?

When I try to configure eth0, after having given eth0 a sane MAC address, the system hangs:

ifconfig eth0 up

same story with

ifconfig eth0 192.168.0.190

Thanks

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hi,

    --- Quote Start ---

    When I try to configure eth0, after having given eth0 a sane MAC address, the system hangs:

    ifconfig eth0 up

    same story with

    ifconfig eth0 192.168.0.190

    --- Quote End ---

    At first, please check the access timing of DM9000A. When I set these values according to the Wiki's recommendation, 

    
  Slave Adressing : Registers
    Units : ns
    Setup : 0
    Read Wait : 40
    Write Wait : 40
    Hold : 0
    the eth0 would not respond, but the system did not freeze. Now I set these values like 

    
  Slave Adressing : Registers
    Units : ns
    Setup : 10
    Read Wait : 10
    Write Wait : 10
    Hold : 10
    with 100MHz system clock.

    Kazu