USB on OMAP5
Available choice of IP
There are 2 USB IPs available on OMAP5
- USB2.0 Host EHCI
This is a Highspeed USB2.0 IP. On the OMAP5 microevm there are generally 2 HS USB downstream ports.
- USB3.0 Host/Device DWC3
This is a Superspeed USB3.0 IP. On he OMAP5 handset device there is a single Superspeed micro USB3.0 port. Host or peripheral functionality is based and decided by he kind of cable that is connected to this port. When the ID pin is grounded the DWC3 IP switches its mode to act like a host.
Host Mode Details
Please refer to the wiki for OMAP4 since this IP is taken from OMAP4 OMAP4_EHCI
- You need a cable adapter "USB 3.0 Type A Female to Micro Male A Adapter"
It looks like this. USB_30_Type_A_Female_to_Micro_Male_Adapter
As on 10-8-2012, these doesn't exist a "type A micro" doesn't exist in the market so I took one like in the link above and modified it by using a small amount of solder to short the GND and ID pins nicely so that plugging it to the OTG port on the OMAP5 board is not obstructed.
- Superspeed peripherals to try out
I've used the following superspeed devices :Sony and Kingston thumb drives in addition to the low speed mouse and USB2.0 thumb drive