Invalid Windows CE MAC address

  • Hello


    By starting the NetDCU with the Bootloader, i become on command "I" the following output:


    NetDCU10 boot options valid : YES
    Start Download after reboot : no
    Download kernel to : FLASH
    Kernel load/store compression : OFF
    Size of area for OS image : 16 MB
    Size of FFSDISK : 16 MB
    Format of FFSDISK : FAT
    Size of 2nd partition : 32 MB
    Format of 2nd partition : EXTENDED
    F3S serial number :
    Launch image after reboot : yes
    Output debug messages at serial port : yes
    Bootloader Network setting valid : YES
    -MAC Address : 0:5:51:0:0:A
    -Use DHCP to get IP address: YES
    WindowsCE MAC address valid : yes
    -WindowsCE MAC Address : 0:0:0:0:0:0


    CPU mode : ASYNC


    Why can the WindowsCE MAC Address by null? I found this MAC address in the registry. Is this address not a fixed value?
    I try to change there the MAC address but as expected without success. Is this address changeable?


    Thanks for your help.


    Regards Markus

  • Hello,
    you are right this is a wrong MAC!
    We provide an undocumented bootloader command "XOM" for adjust MAC.
    You will find MAC also under registry key "HKLM\Comm\<networkadapter>\parms" - but this value is readonly.

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

  • Hello ,


    I have a PicoCom2, every time at boot it asks windows CE mac address, I tried XOM command. and the output is below:
    Watchdog disabled


    PICOCOM2 - WindowsCE Bootloader


    :> XOM Enter WindowsCE MAC address (actual ff:ff:ff:ff:ff:ff): 000551023E33<LF>



    :> I
    PICOCOM2 boot options valid : YES
    Start Download after reboot : yes
    Download kernel to : FLASH
    Kernel load/store compression : OFF
    Size of area for OS image : 16 MB
    Size of FFSDISK : 16 MB
    Format of FFSDISK : FAT
    F3S serial number :
    Launch image after reboot : no
    Output debug messages at serial port : yes
    Bootloader Network setting valid : YES
    -MAC Address : 0:5:51:0:C2:0
    -Use DHCP to get IP address: YES
    WindowsCE MAC address valid : yes
    -WindowsCE MAC Address : FF:FF:FF:FF:FF:FF


    :>


    Do you think something is wrong with this board? as you can see Windows CE MAC Address is still FF:FF:FF:FF:FF:FF