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Are there other communication method other than socket programming within Ethernet communication?

Shan Cao
Intellectual 790 points

Hi, I am trying to find a way to implement ethernet communication, I am familiar with socket programming, but for regular socket programming in TM4C129EXL, this require RTOS, which right now I am not very familiar with, so what if I only want to transfer char data through Ethernet, is there other way except socket programming?

Thanks

Shan

  • 0
    TI__Guru 59540 points
    Hello Shan,

    You may want to have a look at the enet_uip and enet_lwip examples in TivaWare. Neither of these utilize an RTOS. Let me know if these will solve your problems.
  • 0 in reply to Chuck Davenport
    Intellectual 790 points
    Hi，Chuck, I have check the enet_uip and enet_lwip, these two bother obtain an ip and set up a website, but I am trying to use the Ethernet to send out data, such like a Mp3 music file, how could I achieve that.

    Thanks

    Shan
  • 0 in reply to Shan Cao
    TI__Mastermind 22580 points

    Hello Shan,

    How big are the files and is there any timing requirement?

    For most applications you should be able to use TCP/IP stack to transfer reasonably big files relatively quickly. The advantage of using TCP/IP stack is it is already proven to work and provides the flexibility to make it work across different networks (something that might become a requirement in the future).

    TM4C port for lwIP does not support BSD socket style APIs. However, the native lwIP APIs can be used instead to accomplish the same task.

    The examples "enet_uip" and "enet_lwip" use HTTP protocol. If you don't want to use the overhead of the HTTP protocol, then raw TCP packets can be used. The following link has multiple examples that demonstrate the use of lwIP, including "tcpecho_raw" that might be useful to understand the handling of TCP sockets using lwIP raw APIs. lwip.wikia.com/.../Sample_lwIP_applications

    Alternatively TI-RTOS can also be used, which provides socket style APIs. The link to "TI-RTOS for MCUs" is: www.ti.com/.../ti-rtos-mcu

    Thanks,
    Sai