USB System error interrupt

[ulrich_sorensen]

Hi,

I am encountering an SEI interrupt in he USBSTS. Does anyone know what is (normally) the cause of this error interrupt? I have searched through the reference manual but there is hardly any explanation to the causes of this interrupt.

I am using the iMX1064 to stream HD video from a UVC camera with isoc. transfers. The application can run for several minutes without problems but suddenly I encounter the SEI interrupt and the streaming stop.

Any help appreciated.

/Ulrich

[victorjimenez]

Hi Ulrich, 

Unfortunately, we don't have more information regarding this error, just what's mentioned on the RM: This bit is will be set to '1b' when an Error response is seen to a read on the system interface.

Have you tried debugging this issue? What is your software doing when this error happens? Are you using our evaluation board along with the examples that we provide within the SDK? If so, please tell me how can I reproduce this on my end to see what might be the root cause of this behavior.

Regards, 

Victor