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SSD001's avatar
SSD001
Icon for New Contributor rankNew Contributor
5 years ago

MAX 10 Ethernet Error

Hi Friends

I am using a MAX 10 CPLD (10M16SAUI169I7G) which is connected to LS1012A processor using 10/100 Media independent Interface.The max10 is used for acquiring the data from the ADC based on the instruction from the CPU.The MAX10 does not receive the UDP packets from the processor at random time.The Triple speed Ethernet IP receiver is configured in promiscuous mode.
ETHERNET IP CORE USED : Triple Speed Ethernet 18.1
CPLD Used : 10M16SAU169I7G
Processor Used In Board : LS1012A
Mode of Communication between in Processor and CPLD : Media Independent Interface 10/100
Software Tool used : Quartus Lite Version 18.1
IP Core : Triple Speed Ethernet
CPU USED : NXP layerscape 1012A Low Power Communication Processor
CPU Part number : LS1012A
At the Time of the Ethernet hang i am receiving data at the PHY chip level but when i set the Trigger at ff_rx_sop (rising_edge) the Signal Tap analyzer the file says it in acquiring state as shown in the image below.
With Regards
S.D.Shandeep

2 Replies

  • Deshi_Intel's avatar
    Deshi_Intel
    Icon for Regular Contributor rankRegular Contributor
    5 years ago

    Hi,


    From your signal_tap debug, that means it doesn't detect any assertion of ff_rx_sop signal. Nothing is coming out from TSE MAC Rx to FPGA core logic

    • It's either something is already corrupted from PHY Rx to FPGA Rx side
    • or some issue with your signal_tap sampling clock (fpga_mii_tx_clk)


    You can set signal_tap trigger condition to "don't care" stage instead of trigger rising edge


    Also you can probe TSE rx_err[5:0] to try identify what kind of error that you are facing


    Another common debug approach is to enable TSE internal loopback to isolate whether the issue is inside FPGA or outside on your board setup


    Thanks.


    Regards,

    dlim


  • Deshi_Intel's avatar
    Deshi_Intel
    Icon for Regular Contributor rankRegular Contributor
    5 years ago

    Hi,


    We do not receive any response from you to the previous question/reply/answer that I have provided in Feb.


    This thread will be transitioned to community support.


    If you have a new question, feel free to open a new thread to get the support from Intel support agent. Otherwise, the community users will continue to help you on this thread.


    Thank you.


    Regards,

    dlim