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Original question:

TDA4VM: CPSW9G port 4 can not transmit and receive data

TDA4VM: Network data transfer rate is low

shen jeff
Prodigy 90 points

Part Number: TDA4VM

Hi，

I use  Processor SDK RTOS 8.0.0（QNX+RTOS）.

I Connected a PHY(LAN8770 RMII mode) to CPSW9G port 4.

Iperf test results are as follows:

UDP ：

     External PC  -------->       TDA4           data rate is 93mbps

     TDA4           -------->    External PC     data rate is  11mbps just

TCP:

    The result is similar to that of UDP.

What are the possible causes?

BRs

jeff

 

  • 0
    TI__Mastermind 42910 points

    Hi Jeff,

    What exact command are you using for iperf3?

    Who is server and who is client?

    Please provide wireshark traces for the exchange?

    Also can you please confirm that you are not using any filters.

    Moreover, to debug this, you can see the ethernet statistics by running gel files in CCS. See this link for more details on the same. The path for the gel files in sdk is - "[RTOS-SDK-INSTALL-DIR]//pdk_jacinto_08_00_00_37/packages/ti/drv/enet/tools/debug_gels/cpsw_startup.gel"

    Regards,

    Tanmay