Hi community member,
Please let me confirm the following question.
[Question]
Is there any change about USB controller by Device revision change?
[Background]
When they had used the revision B, there was not any problem for USB (Hsot/Device modes) behavior.
However, even though they used the same USB driver which supports Host mode and Device mode with using Revision C, the DM8148 could not work correctly in case of Host mode.
Note:"not work" means that DM8148 could not mount the USB device And in case of device mode, there is not any problem for USB behavior.
According to them, the pin of "USB0_VBSUIN" was outputted the voltage(Approximately 2.8V) even though this pin type was "input pin". I will get the USB pins waveforms which the both cases Rev C and Rev B from customer. If I get them, I will post them to this post. And If you need their schematic, please let me know. This documents is under the NDA.
If you have any question, please let me know.
Best regards.
Kaka
