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USB Protocol Error using eva board MB393B

christoph239955_st
Associate
Posted on February 21, 2006 at 04:16

USB Protocol Error using eva board MB393B

1 REPLY 1
christoph239955_st
Associate
Posted on February 21, 2006 at 04:16

Hello,

I'm using the MB393B and I implemented my own usb driver for

the ARM STR710. Everything is fine except for one protocol error

which the Catalyst USB analyzer shows me:

Although on some data packages I get the actual data but the analyzer reports an protocol error: ''#13 Short Inter Packet Delay''

The description of this error is: ''This error indicates that the required Idle time after a packet was shorter than expected.''

I use the USBCLK for generating the 48Mhz frequency.

Does anyone have some information about this?

Thanks!