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DP83826E

Meir Yerushalmi
Prodigy 65 points
Part Number: DP83826E

Hi TI,

We have Ethernet design based on

  • FPGA  ZYNQ 7000 XC7Z030 (MAC)  --  RGMII
  • DP83826E (PHY)  - RMII \ MII

Does the MAC (XC7Z030) which is RGMII compatible with our PHY DP83826E  which is RMII\MII ?

Zynq-7000-TRM -  P16.6

XC7Z030 :

 

DP83826E :

We succeed to send PING  but the communication is not stable

What we can do about it

  • from PHY side
  • from MAC side

Can we replace DP83826E with DP83822  that have RGMII interface  ??

DP83822 -- DATA SHEET

DP83822 -- EVM

Your help we will be appreciated

Thanks in advance,

Meir

  • 0
    TI__Mastermind 19190 points

    Hello Meir,

    RGMII standard is by definition not compatible with MII or RMII interfaces and the communication will not be reliable.

    I suggest moving to DP83822 for RGMII support.

    --
    Regards,
    Gokul.

  • 0 in reply to Gokul Koraganji
    Prodigy 65 points

    Hi Gokul,

    Thank for your answer

    Can you share  design file for DP83822  EVM - Altium Project  ?

    Literature Number: SNLU179

    Another question: 

    How we succeed to transfer data in UDP\TCP packet  if the interface is not compatible ? or Ping  the device ?

    Does RGMII can work with RMII ?

    Regards,

    Meir

     

  • 0 in reply to Meir Yerushalmi
    TI__Mastermind 19190 points

    Hi Meir,

    Meir Yerushalmi said:

    How we succeed to transfer data in UDP\TCP packet  if the interface is not compatible ? or Ping  the device ?

    Does RGMII can work with RMII ?

    RGMII can't work with RMII. So, you can't transfer any packets.

    I'll check with our team on the Altium files and get back to you.

    --
    Regards,
    Gokul.