Dear Ettus Team,
I have a question about the channel mapping with rfnoc api.
With multi_usrp class I can set several subdev like:
set_rx_subdev_spec("A:0 B:0", 0);
set_rx_subdev_spec("A:0", 1);
then I have channel 0 (A:0 of motherboard 0), channel 1 (B:0 of mb 0) and
channel 2 (A:0 of mb1). Then I can use usrp->set_rate(rate, channel) to set
different channel rate. And I can set for the streamer:
stream_args.channels = {0, 1, 2}
However with rfnoc api, if I want to use set_rate(rate, channel), I have to
create an object:
uhd::rfnoc::radio_control::sptr rx_radio_ctrl =
graph->get_block<uhd::rfnoc::radio_control>("0/Radio#0:0");
which is marked by this block id "0/Radio#0:0". I wonder if I have several
motherboards and daughterboards with different block to use, if their
corresponding Radio blocks are different like: "0/Radio#0:0", "0/Radio#1:0",
"0/Radio#2:0", then shall I do the same as above with multi_usrp to set channel
and then set freq, rate, etc with only one radio_ctrl object. Or I have to
create for each daughterboard frontend, for example A:0 of motherboard 2 a
radio_ctrl object with only one channel? How do I set the tx streamer's channel
then?
Sincerely
Kasim
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