I am targeting the i.MX25. I am trying High-speed USB communication using the OTG port.
Sometimes underrun error occurs during Bulk-OUT transfer. Looking at the USB bus log, retransfer occurs every time after this error occurs.
· Is this retransfer one of the specifications specified in the EHCI standards or the original specification of this chip?
· What should be done on the software side if an underrun error occurs?