TIDA-01243: Power Delivery Causing USB issues.

TDDAUSSYD

Part Number: TIDA-01243
Other Parts Discussed in Thread: TPS65987D, TUSB8040

Tool/software:

We're currently working on a design which uses the TIDA-01243 as a base.

Currently we've been working on getting all the individual systems working, right now we're working on the Power Delivery Controller (TPS65987D) and getting its firmware finalised.

During our testing however we've discovered that once the firmware is flashed on the TPS65987D the USB Hub starts to behave in unexpected ways.

For example, plugging some USB devices in will cause the USB Hub (TUSB8040) to reset to its factory default (It presents itself as a USB device for flashing, maybe this is some kind of failsafe mode?) other device will bring up a "Not enough power is being supplied to the device" warning.

I've tried messing with the source and sink settings in the TPS65987D customisation tool, however so far I'm yet to find a combination that works - I know it's not a hardware issue, as the USB ports worked fine before the TPS65987D was programmed.

I've attatched a screenshot below as well as my .pjt file, any advice on what might causing this problem, or a copy of a known good .pjt file I can test with would be much appreciated!

project file

Thanks.

6 months ago

0 Brian Zhou 6 months ago

TI__Guru*** 144655 points

Hi :

you should configure hub upstream port as UFP and Hub downstream port as DFP, is it correct?

Regards

Brian

0 TDDAUSSYD 6 months ago in reply to Brian Zhou

Prodigy 55 points

Hi Brian,

Thanks for the response.

The I can see two windows in the Firmware Customization Tool marked "Device 1" and "Device 2"

Assuming Device 2 is the "Downstream Ports" and Device 1 is the "Upstream Port" I have configured the firmware as you mentioned. Perhaps however there is a different way to specify the downstream and upstream ports which I am missing?

Cheers.

0 Brian Zhou 6 months ago in reply to TDDAUSSYD

TI__Guru*** 144655 points

from your, tool, do you know which port is DFP and which port is UFP?

Best

Brian

0 TDDAUSSYD 6 months ago in reply to Brian Zhou

Prodigy 55 points

Hi Brian, Apologies for the late response.
Completely missed the notification in my inbox!

The firmware customization tool does not appear to show any differentiation between specific ports.

I've attached couple screenshots of the customization tool with the sample firmware I was previously provided.

As you can see there is "Device One" and "Device Two" However the TIDA-01243 has 3 downstream ports. So If each "device" correlates to a port, I would expect there to be a total of 5 Devices (1 Upstream and 5 downstream)

Thanks,

Tim

0 Brian Zhou 6 months ago in reply to TDDAUSSYD

TI__Guru*** 144655 points

Hi Tim:

From PD controller GUI , it should tell you the port is configured as DFP or UFP, Please check with TI PD team how to find it.

Best

Brian

0 TDDAUSSYD 6 months ago in reply to Brian Zhou

Prodigy 55 points

Hi Brian,

Could you please direct me on where I can get in contact with the TI PD team?

In the screenshots I provided previously one of the screens shows the UFP/DRP configuration, however it does not specify which specific port of the USB controller these are associated with, as the TIDA-01243 has multiple downstream ports and I can not see any way to specify them in the software.

Cheers,

~ Tim

0 Brian Zhou 6 months ago in reply to TDDAUSSYD

TI__Guru*** 144655 points

Just submit another ticket and only mention TPS65987D device , it should go to DP team automatically.

Best

Brian

0 TDDAUSSYD 6 months ago in reply to Brian Zhou

Prodigy 55 points

Thanks Brian,

I have opened a new case.

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TIDA-01243: Power Delivery Causing USB issues.