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TM4C129XNCZAD: TM4C129XNCZAD

user5780702
Prodigy 120 points
Part Number: TM4C129XNCZAD


Are the Ethernet addresses of TM4C129XNCZAD microcontrollers the same? How to get the Ethernet address of a TM4C129XNCZAD?

  • 0
    TI__Guru**** 191906 points

    Hi,

      Are you talking about the IP address or the MAC address? I suppose you are asking about the MAC address, right? The IP address is normally acquired via the DHCP server or can be assigned statically. The MAC address is unique to each board. On the LaunchPad the MAC address can be found on the sticker in the back of the board.The LaunchPad will come pre-programmed with the MAC address for which is allocated from the pool of MAC Addresses allocated to TI. Fresh units shipped to customers will not have the MAC address in the USER_REG0/1. The MAC address must come from the pool of allocated MAC address to your organization/company.

  • 0 in reply to Charles Tsai
    Prodigy 120 points

    Thanks Charles.

    I am talking about the MAC address of a TM4C129X chip.

    When you were saying “ The MAC address must come from the pool of allocated MAC address to your organization/company”, you are misleading me. When we are using TI chips, we are expecting their MAC addresses assigned by TI in a similar way as network cards. Otherwise, please give me more details of how to get those MAC addresses of TI chips  which are assembled in target boards. The target boards are going to be shipped to our customers.

  • 0 in reply to user5780702
    TI__Guru**** 191906 points

    Hi,

      Yes, the MAC address must come from the pool of allocated MAC address to your company. The MAC address is broken into two parts; the OUI (1st 24 bits) and the device ID (last 24 bits). The IEEE controls and allots the OUI portion; so if you got into the business of making your own NICs you would have to register with the IEEE and get your own unique OUI. The device ID portion is administered freely by your company. If you are shipping a product to your customer then the MAC address of your product must have a unique OUI address associated with your company. TYou cannot ship your company end products with TI's OUI. This is why the fresh MCU units shipped by TI will not have the MAC address. The LaunchPad is a TI product for evaluation and it comes with a pre-programmed MAC address.

    Please refer to the below link for information or you can do some Google search. 

    https://standards.ieee.org/products-services/regauth/oui/index.html

    https://en.wikipedia.org/wiki/Organizationally_unique_identifier