Re: [Discuss-gnuradio] transmitting and receiving indication in USRP

[Josh Blum]

On 03/19/2013 03:07 AM, Mohammed Ramadan wrote:
> i have half duplex daughterborad and using gnu-radio flowgraph to
> transmit and receive in alternate time. i founded that while running
> the code both A, C Leds in USRPn210 are on. IS that indicate that i
> send and transmit? if ok how this while i am using half duplex

Led definition, I hope that helps

http://files.ettus.com/uhd_docs/manual/html/usrp2.html#front-panel-leds

> daugher board. Note: i sue python codes for transmitting and
> receiving over the USRP but only one runs at time and other gives me
> error that the address not defined. But both works alternatively. can
> an one send me the illustration for this Problem and how to overcome
> and solve it

You can only have the device open in one process. So your transmit and
receive chains should be in the same process.

-josh

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