The source code also warns me time out blocks and after it, the program
crashes...
when I disabled connect for rx_streamer block, the software has not any
error but I can not see outputs...
still, I am working on the problem to solve it.
*[WARNING] [RFNOC::GRAPH] One or more blocks timed out during flush!*
[ERROR] [RFNOC::GRAPH] Caught exception while initializing graph:
RuntimeError: Cannot create! Property already exists at:
/blocks/0/DUC#0/noc_id
terminate called after throwing an instance of 'uhd::runtime_error'
what(): RuntimeError: Failure to create rfnoc_graph.
On Mon, Jan 24, 2022 at 11:05 AM sp h <stackprogra...@gmail.com> wrote:
> when I want to convert a GRC python code to CPP code I am faced with NOC
> graph error?
> any idea for solving the problem...? I too attached python code...
>
> [ERROR] [RFNOC::GRAPH] Caught exception while initializing graph:
> RuntimeError: Cannot create! Property already exists at:
> /blocks/0/DUC#0/noc_id
>
> terminate called after throwing an instance of 'uhd::runtime_error'
>
> what(): RuntimeError: Failure to create rfnoc_graph.
>
>
>
> const::uhd::device_addr_t device("addr=192.168.10.2");
>
> gr::ettus::rfnoc_graph::sptr
> rfnoc_graph_ctrl=gr::ettus::rfnoc_graph::make(device);
>
> uhd::stream_args_t stream_arg=uhd::stream_args_t("fc32","sc16");
>
> gr::ettus::rfnoc_rx_streamer::sptr
> rx_streamer=gr::ettus::rfnoc_rx_streamer::make(rfnoc_graph_ctrl,1,stream_arg,1,true);
>
> gr::ettus::rfnoc_rx_radio::sptr
> rx_radio=gr::ettus::rfnoc_rx_radio::make(rfnoc_graph_ctrl,device,-1,-1);
>
> rx_radio->set_rate(2000);
>
> rx_radio->set_antenna("AB", 0);
>
> rx_radio->set_frequency(25e6, 0);
>
> rx_radio->set_gain(10, 0);
>
> rx_radio->set_bandwidth(0, 0);
>
> rx_radio->set_dc_offset(false, 0);
>
> rx_radio->set_iq_balance(false, 0);
>
>
> gr::ettus::rfnoc_ddc::sptr
> ddc=gr::ettus::rfnoc_ddc::make(rfnoc_graph_ctrl,device,-1,-1);
>
>
> ddc->set_freq(0, 0);
>
> ddc->set_output_rate(0, 0);
>
>
> //Connections
>
> rfnoc_graph_ctrl->connect(ddc->get_unique_id(),
> 0,rx_streamer->get_unique_id(), 0, false);
>
> rfnoc_graph_ctrl->connect(rx_radio->get_unique_id(),
> 0,ddc->get_unique_id(), 0, false);
>
>
> tb->connect(rx_streamer, 0,tsnk_c , 0);
>
> tb->connect(rx_streamer, 0,fsnk_c , 0);
>
> tb->start();
>
>
>
