HI
We are currently using the USB0 of the AM3356 in our design . If we are using the USB1 interface also , can we connect both USB0 and USB1 VBUS together ?
Regards
Eby
Hello,
Thank you for the query.
I am looking into this. I will update you soon
Regards
Rajashri
Hello Eby,
According to the section 16.2.1 VBUS Voltage Sourcing Control in AM335x TRM , the USB controllers uses the USBx_DRVVBUS pin to control the external charge pump/power logic on its respective VBUS line.
So, kindly refer the AM335 EVM for USB0_VBUS and USB1_VBUS connection.
Below I have also captured the screen shot of the section from TRM.
Regards
Rajashri
Hello Eby,
The recommendation is to connect separate VBUS for design flexibility.
Using a common VBUS creates dependency on the operation of the 2 ports.
Regards,
Sreenivasa