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On Oct 2, 2008, at 7:34 AM, kaleem ahmad wrote:

Hi,

I want to transmit some data using usrp.sink_c and immediately after the data is sent I want to start receiver mode, but my problem is if I do like
this:

Send using 'usrp.sink_c'
start receive mode

My USRP immediately goes into receive mode and the data sent is not
successful, so I want to do something like following:

Send using 'usrp.sink_c'
check 'usrp.sink_c' if the data is sent then
                 start receive mode

There is an automatic switching between transmit and receive modes that does what you want -- whenever there is something being transmitted, it disables the receive chain, and switches back once that buffer is empty. Look through the examples for flow graphs with both transmit and receive chains. It's called something like auto_tr.

- -Dan
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