Good morning everyone,
I'm trying to develop a small board using a 2-ports HUB CY7C65634-48AXC.
At the moment there are no downstream devices connected to the HUB ports, i'm just focusing on getting the HUB device itself up and running.
As a clock source I'm using a programmable oscillator set to 12 Mhz; clock source selection inputs of the Hub IC (SEL48/ SEL27) are connected according to the datasheet specs (both input pulled up to logic "1").
What I see is the following: when I try to plug the board into a windows PC, the device is not enumerated and recognized:
"The last USB device you connected to this computer malfunctioned, and Windows does not recognize it."
If I look at the board with a scope:
Do you have any hint on what I can check in order to isolate the issue? I've already double checked the schematic and everything seems fine and according to the Datasheet requirements.
Thanks in advance,
Solved! Go to Solution.