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Original question:

EK-TM4C1294XL: How to test UDP protocol

EK-TM4C1294XL: EK-TM4C1294XL:

a subbu
Prodigy 120 points
Part Number: EK-TM4C1294XL
Other Parts Discussed in Thread: TM4C1294NCPDT, UNIFLASH

Tool/software:

 1.tried to run enet_lwip example code,Built successfully but it was showing" Trouble Reading Memory Block at 0x400653fc on Page 0 of Length 0x4: Debug Port error occurred." how to resolve this. Am unable to get ip address because of this. (tried this by using EK-TM4C1294XL)

2.we have our own custom board TM4C1294NCPDT if i run enet_lwip example code how to check MAC ADDRESS

  • 0
    TI__Guru**** 184496 points

    Hi,

      Sorry, I'm currently on vacation for the entire week. I will look into your problem when I get back. Please expect delays in my response. 

  • 0
    TI__Guru**** 184496 points

    Hi,

    a subbu said:
     1.tried to run enet_lwip example code,Built successfully but it was showing" Trouble Reading Memory Block at 0x400653fc on Page 0 of Length 0x4: Debug Port error occurred." how to resolve this. Am unable to get ip address because of this. (tried this by using EK-TM4C1294XL)

    Do you have another board to try? 

    Can you first try the Unlock Operation to see if it resolves the issue? See below. 

    Once the Unlock is performed, make sure you reprogram the MAC address.

    a subbu said:
    2.we have our own custom board TM4C1294NCPDT if i run enet_lwip example code how to check MAC ADDRESS

    If you have your own board then the TM4C1294NCPDT part is not pre-programmed with a MAC address, unlike the LaunchPad. You need to program the MAC address yourself before you can run any Ethernet examples. Please note that you must acquire a MAC address that pertains to your company. The first three nibbles of the MAC address on the LaunchPad is allocated to TI only. If you have a debug probe other than ICDI then you can use Uniflash to program the MAC address. See below. 

  • 0 in reply to Charles Tsai
    Prodigy 120 points

    Am not able to get What MAC id has to be program and how to decide MAC id? can you give clear explanation with example.

  • 0 in reply to a subbu
    TI__Guru**** 184496 points
    a subbu said:
    Am not able to get What MAC id has to be program and how to decide MAC id? can you give clear explanation with example.

    Please refer to MAC Address in Wikipedia for an introduction what it is. Your company must acquire from a pool of MAC addresses for your company. For your current development, you can program a TI MAC address to your custom board for testing but eventually you should program with your own addresses. Look at any one of the LaunchPads you have on the back side, there is a preprogrammed MAC address. You can use that address temporarily on your custom board. For example, you might find an address like 00:1A:B6:XX:XX:XX. The 00:1A:B6 is the OUI for Texas Instruments. If you go to https://macaddress.io/ or any online MAC address lookup websites, you will find the below details.