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DP83TD510E-EVM: Trying to simply connect 2 back to back as media converters using USB power

Ian MacPherson
Prodigy 40 points
Part Number: DP83TD510E-EVM

So far after searching the forums I found that I had to replace R24 to 0R (only way to get the COM ports to show in windows).  That made it appear to work better as LEDs are now properly bright.  I seem to get link after about 10 seconds on the T1L side (maybe longer) (is that normal time?).  I am only using about 15 feet of shielded cat 5e using 1 pair and the shield cable.  So far I have only seen 4 packets actually pass through undamaged.  I have not run any scripts as I was under the impression by the documentation for what I am doing, that it isn't required.

Where do I start to get this working?  I went through all of the forum, but most are closed with no answer.

Thanks!

  • 0
    TI__Genius 16030 points

    Hello Ian,

    Sorry for the bother. I will ask our EVM designer to get back to you on this asap.

    --

    Regards,

    Vikram

  • 0 in reply to Vikram Sharma
    Prodigy 40 points

    Vikram,

    Thanks for the help!  Looking forward to getting these up and running so we can start distance/throughput tests.

    Ian

  • 0 in reply to Ian MacPherson
    TI__Genius 16030 points

    Hello Ian,

    Taking a while to get the right person to have a look at it. I am working on it. It may take a day or two more.

    -

    Regards,

    Vikram

  • 0 in reply to Vikram Sharma
    TI__Genius 16030 points

    Hello Ian,

    Can you please help us with value of PHY register <0x0003>?

    --

    Regards,

    Vikram

  • 0 in reply to Vikram Sharma
    Prodigy 40 points

    Vikram,

    Register 0003 is: 0180

    To note, Had to power the one board I am serially connected to via USB, as it didn't seem to like USB and Bench supply at the same time.. Kept losing link on the RJ45 side (and other issues im sure).  I attached a pic to show the LEDs and jumper posistions.

    Here's some added info..

    Register 0010 is: 0001

    Register 0015 is: 09C7

    Also, the ADI dev kits I got has an issue too, but fixed it and they work great.

    Thanks

    Ian

  • 0 in reply to Ian MacPherson
    TI__Genius 16030 points

    Hello Ian,

    Looks like the silicon version on your EVM is not the one under production. Do you have access to the production silicon? If not, you may have to load a software configuration in the device for the required performance. For the required software configuration, do let me know the following about the desired mode of operation :

    1. Driver mode of operation : 2.4V or 1V?

    2. Auto-neg on?

    --

    Regards,

    Vikram

  • 0 in reply to Vikram Sharma
    Prodigy 40 points

    Vikram,

    I was given a AutoNeg initialization script, and after trying it, it now works.  I think I attached it to this message for other users.

    Interesting about the silicon. Our rep actually had us wait for the dev kits which have the newer silicon, so that is what I thought we got.

    Thanks!

    Ian

    Fullscreen 8055.AutoNegotiation_Initialization.txt Download 
    begin
001f 8000 //hard reset
0608 003b //disable_0_transition
0862 39f8 //AGC Gain during Autoneg
081a 67c0 //deq offset for 1V swing
081c fb62 //deq offset for 2.4V swing
0830 05a3 //Enable energy lost fallback
0855 1b55 //MSE Threshold change
0831 0403 //energy detect threshold
0856 1800 //good1 MSE threshold change
0857 8fa0 //Enable fallback to phase 1 on watchdog trigger
0871 000c //TED input changed to slicer_in without FFE
0883 022e //Enable Rx Filter, Change PGA threshold for Short Cable detection
0402 1800 //Adjusr LD swing
0878 2248 //Change PI up/down polarity
010c 0008 //tx filter coefficient
0112 1212 //tx filter scaling factor
0809 5c80 //AGC retrain
0803 1529 //Master Ph1 Back-off
0804 1a33 //Master Ph1 Back-off
0805 1f3d //Master Ph1 Back-off
0850 045b //hybrid gain & delay
0874 6967 //kp step 0 for master
0852 7800 //FAGC init gain
0806 1e1e //Master/Slave Ph2 Back-off
0807 2525 //Master/Slave Ph2 Back-off
0808 2c2c //Master/Slave Ph2 Back-off
0850 0590 //Hybrid Gain/Delay Code
0827 4000 //Echo Fixed Delay
0849 0fe4 //Hybrid Cal enable
084b 04b5 //Echo Score Sel
001f 4000 //soft reset
end