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TMDSHSECDOCK: Connection between TMS320F28388D and control card

Intellectual 260 points

Replies: 5

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Part Number: TMDSHSECDOCK

Hi, 

I am little confused with connection between TMS320F28388D and control card. I am trying to use MII interface to connect a external PHY.

Here is the GPIOs I chose to connect to PHY

Then I checked TMS320F2838x datasheet to identify where the pins locates. 

But when I was trying to connect these pins on the deck. I found there are two pins ENET_MII_RX_DATA_2 and ENET_MII_RX_DATA_3 that are not connecting to GPIO. See the yellow highlight.

Would you mind explaining why is that? Thanks. 

Regards,

Cheng

  • In reply to Cheng Chen4:

    Cheng,

    A few things are going on here. 

    1. You are looking at the wrong 180cCARD_pinout.pdf. Please get the "TMDSCNCD2838x_RevB_180cCARD_pinout.pdf" file from C2000ware C:\ti\c2000\C2000Ware_3_02_00_00\boards\controlCARDs\TMDSCNCD28388D\Rev.B
    2. The controlCARD does not use the 176 pin package. It uses the 337 pin package.
    3. I didn't check if all of those pins are available through the HSEC connector, but the two GPIOs you called out (GPIOs 65 and 66) are available.
    4. Please note that if you are simply trying to test the ethernet module we have included an Ethernet PHY and RJ45 connector on the controlCARD already, no additional hardware is needed.

    Regards,
    Cody 

  • In reply to Cody Watkins:

    Hi Cody, 

    Thanks for the help! It makes a lot of sense now. 

    I am trying to test DP83640 PHY for ieee 1588 protocol. I notice there are ethernet example codes such as ethernet_c28x_config and ethernet_ex4_ptp_basic_slave, and ethernet_ex4_ptp_basic_master in the resource explorer. Does the built-in Ethernet PHY support those?

    Regards,

    Cheng 

  • In reply to Cheng Chen4:

    Cheng,

    the examples included in C2000Ware (which are viewable in the resource explorer) for F28388D are made to run on the TMDSCNCD28388D controlCARD. They should run without modification.

    Regards,
    Cody

  • In reply to Cody Watkins:

    Sounds good. Thanks for the help!

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