TPS2544: TPS2544 wake up fail issue

Randy Chen

Part Number: TPS2544

Hi,

Customer reported the issue about TPS2544 wake up fail.

System cannot wake up from S3 by the USB port connecting hub + USB mouse condition.

Found the USB1.1 Hub is OK but USB2.0/USB3.0 Hub are fail to wake up. Even tested to stay in S0 for more than 60 seconds but still fail to wake up from S3.

Customer setting:

S0: CDP(1,1,1,1)

S3: DCP_Auto (0,1,1,0)

Can you please comment?

Best regards,

Randy Chen

over 6 years ago

0 Rakesh over 6 years ago

TI__Guru** 103506 points

Hi Randy Chen,

Can you please share the schematic and block diagram to understand S0, S3 settings.

Best Regards,
Rakesh

0 Rakesh over 6 years ago in reply to Rakesh

TI__Guru** 103506 points

Hi Randy,

I have informed to appropriate team to help on this.

Best Regards,
Rakesh

0 Adam Mc Gaffin over 6 years ago in reply to Rakesh

TI__Mastermind 29525 points

Hi Randy,

Would you be able to send scope captures of the issue occurring? I'm Interested to see the following lines, and how the react based on the above conditions
- VBUS (pin 12)
- DP_IN (pin 10)
- DM_IN (Pin 11)
- CTL1 going from high to low
- I_OUT

Once you send the screen shots, I can take a look at what I think is occurring and even try to replicate the issue if need be

0 Adam Mc Gaffin over 6 years ago in reply to Adam Mc Gaffin

TI__Mastermind 29525 points

Hello

I am going to go ahead and close this thread since I have not heard from you in a while. If you would like to continue the discussion feel free to reply to this or start a new question thread.

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

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TPS2544: TPS2544 wake up fail issue