Other Parts Discussed in Thread: TPS2561
Hi.
I am trying to use a TUSB4041I USB Hub to connect to 4 downstream USB devices.
I am able to see the Hub via software but there is no communication seen to the 4 downstream devices when they are attached.
The reset of the device is pulled up but also goes to a PIC, which is in it's high-z undriven state.
I have pull-ups available on the PWRCTL pins but believed pull-ups aren't required on these pins for this application so they are not fitted.
I am using TPS2561 VBUS power controllers as you can see from the circuit below.
Thank you.
Regards,
Rob.
