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[Discuss-gnuradio] USRP errors


From: Meenal
Subject: [Discuss-gnuradio] USRP errors
Date: Tue, 14 Jun 2005 18:25:42 -0500

I have a bidirectional set up using  two USRP's on two machines. Data exchange is achieved with tx and rx scripts.

                        usrp1               usrp2
                        -----               -----
             tx.py      |Src|   <-----------> |Tar| tx.py
             rx.py      -----               ----- rx.py
                        

On both sides on running the tx script I get the following errors. However the script never hangs or dies. All data goes through as expected. Eventually I am able to set up a bidirectional link successfully.
Any ideas about how to resolve these errors ?
Thanks
Meenal
=======================================================================
address@hidden ./tx.py 1024 1
>>> gr_fir_fff: using SSE
TX d'board A: Basic Tx
TX d'board B: <none>
4
uUuUItems read 1032 items
fusb: (status -108) Cannot send after transport e ndpoint shutdown
uU_reap: usb->status = -108, actual_length = 0
_reap: usb->status = -108, actual_length =     0
.............
[Several such messages occur]
.............
_reap: usb->status = -108, actual_length =     0
fusb: (status -108) Cannot send after transport endpoint shutdown
fusb: (status -108) Cannot send after transport endpoint shutdown
.............
[Several such messages occur]
.............
fusb: (status -108) Cannot send after transport endpoint shutdown
uUuUuUuUuUuUuUuUuUuU_reap: usb->status = -108, ac tual_length =  7680
_reap: usb->status = -108, actual_length =     0
_reap: usb->status = -108, actual_length =  3584
_reap: usb->status = -108, actual_length =     0
fusb: (status -108) Cannot send after transport endpoint shutdown
fusb: (status -108) Cannot send after transport endpoint shutdown
fusb: (status -108) Cannot send after transport endpoint shutdown
fusb: (status -108) Cannot send after transport endpoint shutdown
Items read 1024 items
Items read 1024 items  [Note: These are my cout statements in the underlying .cc gr_source files]
Items read 1024 items   [ These indicate that data is passing through the pipeline]
Items read 1024 items
.............
[Script resumes pumping data]


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