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sebestajan
Visitor II
October 13, 2009
Question

Ethernet performance

  • October 13, 2009
  • 13 replies
  • 2278 views
Posted on October 13, 2009 at 18:30

Ethernet performance

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    A
    alandras
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:32

    Hi all,

    Janse,

    packet's can be dropped by the router/switch/hub if you have any betwen the board and your computer. Or maybe even by the computer? What is your configuration?

    regards,

    Andras

    A
    abishko
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:32

    Hi, all!

    We've got a quite problem with STR912FAW ethernet perfomance.

    Current my step is example code with web server and maximum speed is about 7000 bytes per second.

    This was tested in Olimex STR-E912 evaluation board.

    Minimal required perfomance for our device is about 2MBytes per second one-side pocket sending.

    As I understand from this branch this is quite possible but will require a lot of optimizations.

    What should I begin with to solve this problem?

    Could anybody please help me with ready blocks and/or detailed guidance, because my experience in STR9 optimization is not enough yet?

    T
    tomas23
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:32

    Anti-Nagle in uip_split.c as first option? Optimized memcopy in one of ST appnotes on STR9 pages? The TCP/IP should be able to deliver around 20 Mbit/s with CRC calculation, if I remember well, from internal RAM and using optimized drivers.

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