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krishna K H
krishna K H
Associate II
June 22, 2017
Question

Ethernet STM32F429 with w5500

  • June 22, 2017
  • 2 replies
  • 2228 views
Posted on June 22, 2017 at 16:46

Hi  guy's,

I'm a new person to Ethernet, i try to configured as a client (on STM32F429 controller) ,Initialization is done ,i ping from Command promta on LAP top, and  got a response from  controller. Basic communication is done...

I don't want how to send a data  from  client to server using server URL(I don't have IP address, i have a URL),

i send a data from client to cloud server.

please help me, i struck with last 15 day's...I waiting your reply....

Thanks in advance.

    This topic has been closed for replies.

    2 replies

    waclawek.jan
    waclawek.jan
    Super User
    June 22, 2017
    Posted on June 22, 2017 at 17:04

    This is not related to STM32 at all, and only marginally related to W5500. You need to gain a deeper understanding of Internet and its protocols suite first.

    URL is resolved into IP address using DNS.

    Wiznet has some sort of a

    http://wizwiki.net/wiki/doku.php?id=products:w5500:driver&s[]=dns

    , but I am not going to investigate this for you.

    JW

    Zt Liu
    Zt Liu
    Senior III
    June 23, 2017
    Posted on June 23, 2017 at 04:29

    hi, 

    Do you mean your w5500 is working as a HTTP Client?

    You need to test your DNS first!

    First you need to choose a DNS server for requesting, for example 8.8.8.8 is Google's DNS server.

    Check the ioLibrary, there are dns.c and dnc.h files

    Just call the routine:

    /*

    * @brief DNS process

    * @details Send DNS query and receive DNS response

    * @param dns_ip : DNS server ip

    * @param name : Domain name to be queryed

    * @param ip_from_dns : IP address from DNS server

    * @return -1 : failed. @ref MAX_DOMIN_NAME is too small \n

    * 0 : failed (Timeout or Parse error)\n

    * 1 : success

    * @note This funtion blocks until success or fail. max time = @ref MAX_DNS_RETRY * @ref DNS_WAIT_TIME

    */

    int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns);

    Indeed, your question really has little to do with STM32!

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