So TX has a priority over RX, am I right?
On Tue, Jan 10, 2023, 21:54 Daniel Estévez <dan...@destevez.net> wrote: > On 09/01/2023 18:20, Karen young wrote: > > Hi, > > > > I want to use the single port (TX/RX) from USRP B210 to switch between > > transmitting and receiving. I have selected "Ch0: Antenna: TX/RX" for > > both the USRP sink and source blocks as shown in the figure. I expect > > the TX/RX port will show orange light. But the USRP hardware still > > transmits through TX/RX port (Red light on), and receives through RX2 > > port (Green light on). > > > > What needs to be set if only using a single TX/RX port for switching > > between transmitting and receiving? > > Hi Karen, > > It seems that you're trying to transmit continuously, since the Signal > Source is delivering samples to the USRP sink all the time. The TX/RX > port cannot be used for simultaneous transmit and receive. It can only > do one at a time (but can switch during the flowgraph execution). > > To receive whenever you are not transmitting something, you need to use > burst transmissions > (https://wiki.gnuradio.org/index.php/USRP_Sink#Bursty_Transmission). I > think that if you do this, the USRP will switch to transmit when you > send it a burst, and will switch to receive whenever it has nothing to > transmit. > > Best, > Daniel. > >
