Using TPS65982/86 as Device/Consumer with a normal USB 2.0/3.0 Host

Hai Doan76

Other Parts Discussed in Thread: TPS65982

Hi all,

I've tried the TPS65982/86 successfully with a real USB-C host. But it still does not work correctly if using a normal USB host.

The problem is that the USB host does not support CC configuration. So when I check the log file (by using read_register Python script), it says DataConnection is disconnected (Data Status 0x5f), thus I think the USB Mux is not enable.

Guess I have to control the register of TPS65982/86 directly. Is it okay to manually control the "0x28 System Configuration" register, bit 34-33 USBPath to enable "USB RP path"?

Or is there other way to activate the USB Mux in this case?

Attached is the log file (read_register) and the Config file I'm using. Pls help to check and advise. Thank you all.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/Test1.7z

over 9 years ago

0 Hai Doan76 over 9 years ago

Prodigy 180 points

Look like the TPS65982 needs to detect the CC configuration in order to determinate whether USB-Host (2.0/3.0 in my case) present.

Replace my cheap USB C-to-A cable with a better one and it works like a charm. Guess there are some pre-configure resistors implemented inside the new cable.

0 Atiq Rahman over 9 years ago in reply to Hai Doan76

TI__Expert 5110 points

Hi Hai,

Looks like you are able to solve the problem you initially faced with USB Type-C to Type-A cable. We are closing this tread accordingly.

Regards,
Atiq

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Using TPS65982/86 as Device/Consumer with a normal USB 2.0/3.0 Host