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RE: [Discuss-gnuradio] help: cannot send after transport endpoint shutdo

From: Joreen Tan
Subject: RE: [Discuss-gnuradio] help: cannot send after transport endpoint shutdown
Date: Sun, 1 Feb 2009 14:22:13 +0800

Hi, I'm so sorry. This is the original email message.

I am actually trying to do a half duplex (receive) using one board (900MHz) and half duplex (transmit) using another board (1800MHz) in the same usrp. I have another usrp for the same function. 
I actually make use of the benchmark_rx and benchmark_tx files to modify the codes to make the receiver send an acknowledgement back to the transmitter to acknowledge the receive of the packet and proceed with asking the transmitter to send the next packet. 
I used the following code inside the transmitter, to call the receiver to wait for an ack.

os.system("python benchmark_tx.py --freq 900 --bitrate 500k")

The program is able to activate and start to receive. However, i couldn't actually stop the receiver to go back to the transmitter mode after doing so.

Some help on this will be much appreciated! thanks!


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