• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 33 subscribers
  • Views 819 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TUSB546-DCI: Is there a file for TPS6598x Configuration Tool

Bianca Wrona
Prodigy 40 points
Part Number: TUSB546-DCI
Other Parts Discussed in Thread: HD3SS460, TPS65981

Dear Experts,

I have a Design with TUSB546_DCI and TPS65981. I would like to configure the EEPROM Content. I used the File for TPS65981 and HD3SS460 without success.

My ambition is a DFP, I configured the Power Rule (5V/3A) and the GPIO Pins (GPIO0: CTL1 / GPIO3: CTL0 / GPIO15: Flip). I made an export and flashed the EEPROM.

Now the USB Port works fine, the DP Port doesn't work. I measured these 3 GPIO pins and they are as follows:

CTL1 always High as soon as somthing is plugged. The flip pin is always low. CTL0 is low until a display port connector is plugged.

Nevertheless the flip logic seems to work, because it doesn't matter in which way I connect the USB Device.

My conclusion is, that the EEPROM Content is incorrect. Can you help?

Thanks in advance,

Bianca

  • 0
    TI__Mastermind 36756 points

    Hi Bianca,

    The GPIO events for the TUSB546 are different than for the HD3SS460. For the TUSB546, you should be using "DP Event", "USB3 Event", "Cable Orientation", and "Hot Plug Detect HPD" for the 4 control signals. You can check in the TUSB546 datasheet which pins these should go to. Make sure the corresponding GPIO is configured correctly in the Application Customization Tool.

    If this answers your question, PLEASE select This resolved my issue

    Thank you,

    Eric

  • 0 in reply to Eric Beljaars
    Prodigy 40 points
    Hi Eric,
    I changed the configuration as you suggested. This works better but there is still an issue.
    In my SCM there a following connections: CTL1 (Pin 23, TUSB546) to GPIO3 (Pin 19, TUSB65981), CTL0 (Pin22) to GPIO0 (Pin 41) and Flip (Pin 21) to GPIO15 (Pin 2). There are no external Pull ups or Pull downs used.
    The configuration is: GPIO3 as DP Select Event, GPIO0 as USB3 Event and GPIO15 as Cable Orientation Event. Also without PU or PD configured.
    As I tried this configuration, USB only mode and DP only mode worked correctly.
    I measured the signals and found out, that CTL0 is always Low. This behavior matches with the issue, that the alternate mode with DP and USB is not working. My conclusion is, that the USB only Mode is the default mode so this works automatically.

    Thanks,
    Bianca
  • 0 in reply to Bianca Wrona
    TI__Mastermind 36756 points
    Hi Bianca,

    Where is HPD from the TPS65981 connecting to on the TUSB546? We have not had any issues with the USB3 GPIO event in the past. Can you check to see if the HPD signal is connected properly?

    Thank you,
    Eric
  • 0 in reply to Eric Beljaars
    Prodigy 40 points

    Hi Eric,

    the HPD Pin is connected to GPIO4 and works fine.I measured the signal, it is low until a display port is plugged.

    If I plug an USB Stick, I expect CTL0 to change from Low to High. But the signal remains low. Nevertheless, the USB Stick works fine.

    Thanks,

    Bianca

  • 0 in reply to Bianca Wrona
    Prodigy 40 points
    Hi Eric,
    thanks for the help. I found the problem.

    Greetings,
    Bianca