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Message
From: jfilling at gmail.com<jfilling@g...>
Date: Tue May 17 00:07:11 CEST 2005
Subject: [usb] USB list dead?
I discovered this issue during testing a while back. The USBF_RX_ACK_TO_VAL_FS and USBF_TX_DATA_TO_VAL_FS values in the USB 2.0 function core are too small. Once I increased these timeouts, the core started responding in a more reasonable fashion.
----- Original Message ----- From: Igor Mohor<igor.mohor@g...> To: Date: Mon Dec 20 18:43:12 CET 2004 Subject: [usb] USB list dead?
> Hi, everybody. > > I sent a question some time ago to this list (see below). Now I'm > resending it and wondering if this list is dead or people just too > busy to answer. > If this doesn't work, I'll send another letter in a "Hello, > I'm a > student, send results" fasion. > Regards, > Igor > From: Igor Mohor<igor.mohor@g...> > Date: Wed Dec 1 14:18:48 CET 2004 > Subject: [usb] timeout values > > > > Hi. > Are values used for "RX timeout" OK? The Opencores USB > core uses 400 > ns for HS and and 622 ns for FS. I believe the value should be 816 > bit > times for > HS (1.7 us) and 16-18 bit times for FS (1.33 us - 1.5 us). > Am I wrong or right? > Best regards, > Igor > >
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