CCS/TM4C129XNCZAD: TM4C129XNCZAD

user5933633

Part Number: TM4C129XNCZAD

Tool/software: Code Composer Studio

I can't get the mac address of the chip,I use ROM_FlashUserGet(&ui32User0, &ui32User1) get 0xFFFFFFFF,why?

I also can't connect the chip by ethernet, I change the "enet_lwip" example,I add the tcp/ip code and initial a tcp server.It can run normally on the development board and pc can connect the development board ,but in my own board ,pc can't connect, I try "ping" but failed.

over 6 years ago

0 Doug Baker over 6 years ago

Genius 3420 points

If you have a new chip from TI, they do not come with MAC addresses. If you have a eval kit, TI will program the chip with a MAC address.

0 Ralph Jacobi over 6 years ago

TI__Guru*** 135355 points

Hello,

As Doug indicated, you need to program in your own MAC Address at some point. This can be easily done with LMFlash Programmer for example. Did you try and do this and still have the result?

0 user5933633 over 6 years ago in reply to Ralph Jacobi

Prodigy 30 points

I must get the mac address by myself? Didn't the network card come out with a mac address?

0 user5933633 over 6 years ago in reply to Doug Baker

Prodigy 30 points

How can I get the mac address?

0 Ralph Jacobi over 6 years ago in reply to user5933633

TI__Guru*** 135355 points

Hello,

If you are making your own board, you'd need to acquire unique MAC addresses to use. This is what TI does when we make our LaunchPad's.

See this E2E post that discusses various aspects of how MAC addresses can be programmed into TM4C MCU's at a production level: e2e.ti.com/.../2325025

Arm-based microcontrollers

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CCS/TM4C129XNCZAD: TM4C129XNCZAD