On 09/06/2017 07:52 AM, 李阳 via USRP-users wrote:
Hi,
We use 4 X310s jointly to capture 7 channel RF signal coherently. The
4 X310s are synchronized by common 10MHz ref clock and PPS provided by
a clock distributing source.
It works well if we only receive the 7 channel samples from device to
host, however, when we use the last RF channel to transmit the
processed signal back into RF band, the X310s just don't receive and
transmit simultaneously. Instead, the transmiting and receiving stream
work alternatively, several seconds receiving and then several seconds
transmitting, and again and again... ( I learn this by seeing the LED
in the front panel)
The UHD mannual has an example configuration:
usrp->set_rx_subdev_spec("A:0 B:0", 0);
usrp->set_rx_subdev_spec("A:0", 1);
usrp->set_rx_subdev_spec("B:0 A:0", 2);
In our situation, we just want to use the 2nd channel of the second
device to transmit.
Is it possible to use USRP like this? or did we miss some additional
configuration?
3X!
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What are your sample rates?
Do you have separate threads for RX and TX?
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