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AM5748: How to set up software for TUSB322I？

user4205571
Expert 1390 points
Other Parts Discussed in Thread: TUSB322I, HD3SS3212, AM5748

Hi：

Customized card: AM5748

SDK: processor-sdk-linux-am57x_04_03_00_05

How do I find the software setup section for TUSB322I?

Is there a user manual for type-c?

The following figure is about the typeC and typeA signal selection.by hd3ss3212:

The TUSB322I device implements Type-C Configuration Channel (CC) logic on the USB Type-C port.
Use the CC pin to determine port connection status and cable orientation, role detection, and Type-C current mode control.




  • 0
    TI__Guru**** 177301 points

    Nan

    There is no software needed for TUSB322I, it is a state machine based design that depends on the CC1/2 status, drive its DIR pin.

    Please refer to TUSB322I datasheet and Type C specification for USB Type C operation.


    Thanks
    David

  • 0 in reply to David (ASIC) Liu
    Expert 1390 points

    Hi:


    Refer to the HD3SS3212 manual to find that only 0.1 capacitors need to be added to the TX terminal between the chip and the connector.


    I am using two HD3SS3212 chips now. Then, between the two chips, it is necessary to add 0.1 capacitors to both the TX and RX terminals?


    Should TX / RX between HD3SS3212 and main chip AM5748 increase 0.1 capacitor?

  • 0 in reply to David (ASIC) Liu
    Expert 1390 points

    Hi:

    Whether the B0P of the HD3SS3212 chip can be connected to the TX1P or TX2P on the typeC interface. Or B0P can only be connected to TX1P, and C0P is connected to TX2P. Unable to connect TX2P to B0P ？？？

  • 0 in reply to user4205571
    TI__Guru**** 177301 points
    Nan

    HD3SS3212 is a FET switch. So the connection for TX will be

    AM5748 --- DC coupled --- HD3SS3212 --- DC coupled --- HD3SS3212 --- AC coupled --- Connector

    For RX, it assumes whatever is connected to RX is AC coupled

    AM5748 --- DC coupled --- HD3SS3212 --- DC coupled --- HD3SS3212 --- DC coupled --- Connector --- Connector --- AC coupled

    You can connect TX1 or TX2 to B0P.

    Thanks
    David