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c6678 internal switch

huajin yuan
Prodigy 60 points

Hi   all,

We are developing on a custom board consisting of two C6678 DSPs. Here is a crude diagram of one such pair:

<SGMII1 – DSP0 – SGMII0> --- <SGMII0 – DSP1 – SGMII1>---<PHY>---<PC>

Now, I want to use the DSP1's internal 3 ports switch to for communication between DSP and PC.


①Communication between the DSP0 and the DSP1 has been achieved.

②Can communicate DSP1 and PC via an internal switch configuration DSP1?and I want to know how to configure?

Thanks.

  • 0
    TI__Mastermind 20790 points

    Yuan,

    Please provide the details of phy chip, TI EVMC6678 board having marvel phy chip(88E1111). You can find this configuration in the NDK based examples.   

  • 0 in reply to Pubesh
    Prodigy 60 points

    hi，

    my custom board is also use the 88E1111 .

    I  has configered the DSP0's SGMII 0 and DSP1's SGMII 0 to forced link refering to the Gbe manual. I can use DSP0 to send a eth packet from DSP0 to DSP1,and the DSP 1 can recive tht packet.Now I want to use DSP0 send a  broadcast packet to PC.How can I configer the SGMII and Switch?

    Thanks.

  • 0 in reply to huajin yuan
    TI__Mastermind 20790 points

    Yuan,

    Refer the "Files for enabling EMAC0 on EVM's AMC connector", this files will support for enabling EMAC0. You have to modify or make the communication on the RJ-45 of DSP0  and external world like PC.
    http://processors.wiki.ti.com/index.php/Keystone_Device_Architecture#Keystone_EVM_Info
    In addition that this wiki gives an information for phy usage,
    http://processors.wiki.ti.com/index.php/Before_asking_for_NDK_support
    http://processors.wiki.ti.com/index.php/Guidelines_when_porting_NDK_to_different_PHYs