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TDA4VEN-Q1: The dual TDA4VEN solution connects externally via a single Ethernet PHY

zijian qiu
Prodigy 10 points
Part Number: TDA4VEN-Q1
Other Parts Discussed in Thread: TDA4VM

Tool/software:

Hi TI experts，

We are adopting a dual TDA4 solution for development. Currently, there is an issue where only one TDA4VEN is connected to Ethernet. Due to debugging requirements, we need both TDA4VEN chips to have Ethernet connectivity. Therefore, we would like to inquire whether the TDA4VEN connected to Ethernet can function as a switch to split into two Ethernet channels, connecting to both TDA4VEN chips respectively, so that the other TDA4VEN can also access Ethernet.？

We understand that the TDA4VM can achieve MAC-to-MAC connection via SGMII or RGMII, where one interface of the CPSW2G connects to the PHY and another interface (MAC-to-MAC) connects to another SoC. For the TDA4VEN to achieve this functionality, is it consistent with the TDA4VM? If not, please provide the corresponding solution description.Thanks a lot.

Best,

Zijian.qiu

  • 0
    Prodigy 10 points

    To add, in the dual TDA4VEN solution, only one SOC is connected to the Ethernet PHY and external devices. During debugging, it is necessary to communicate and debug with both SOCs separately via the host computer. Can this be achieved? This is very important to us.

  • 0 in reply to zijian qiu
    TI__Guru 63920 points

    Hi,

    zijian qiu said:
    To add, in the dual TDA4VEN solution, only one SOC is connected to the Ethernet PHY and external devices. During debugging, it is necessary to communicate and debug with both SOCs separately via the host computer. Can this be achieved? This is very important to us.

    As I understand, you are looking to connect one of the TDA4VEN Ethernet ports to a PHY and connect to a PC for debugging. The other Ethernet Port connects to another TDA4VEN in MAC-to-MAC mode during debugging, allowing you to communicate with both TDA4VENs from the PC.
    The setup looks as follows.


    You can use the Native Linux driver or CPSW3G from TDA4VEN, and enabling switch mode can serve your purpose.

    Best Regards,
    Sudheer