TPS65983B: Singelport Thunderbolt device selvepowered detection

Patrick Schade

Part Number: TPS65983B

The System:

TPS65983b
Aplane Riege SP (JHL6340)
W25Q80
Application Customization 3_17
FW_6.43

The device is a Buspowered Device with additional features which need more power than the 12W. We have an extern power connector which provide us the necessary power. The power connector has an extra pin for the detection for recognized the connection. This pin enables the additional feature.

At the moment the device is a buspowered device which consumes no power if the extern power is plugged.

The detection signal is also route to the GPIO Pin of the TPS65983b. Is there an opportunity to report the Host, that device is now selfepowered?

over 7 years ago

0 Eric Beljaars over 7 years ago

TI__Mastermind 36756 points

Hi Patrick,

The GPIOs of the TPS65983B are not configurable. The TPS65983B should follow the Intel TBT reference design exactly as it is to work properly. Please ensure you are selecting the correct bus powered device project file when you load the configuration tool.

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

Thank you,

Eric

0 Patrick Schade over 7 years ago in reply to Eric Beljaars

Prodigy 70 points

Hi Eric,

thanks for the fast feedback.

Ok if the GPIO´s can´t be used, is there any opportunity to configurate a buspowered device so that can be switch to an selfepowered device? So that the host (for example Linux Ubuntu Mate 18) recognize change and display the change.

Thank you,

Patrick

0 Eric Beljaars over 7 years ago in reply to Patrick Schade

TI__Mastermind 36756 points

Hi Patrick,

The Intel Bus Powered Device design is not meant to be self powered. It is design to only operate as a bus powered device.

Thank you,
Eric

Interface

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TPS65983B: Singelport Thunderbolt device selvepowered detection