Good day. I'm wondering if you can help me. I have a B210 board connected to a jetson tk1 and I am trying to send over one port and receive over two. The hardware setup is the RX/TX board connected to an RF filter connected to a splitter and the connected to the two RX2 ports. When I run one TX and one RX I have no issues however when I run 2 RX my python application crashes. I try run a simple 2 Rx configuration in GNU Radio with the 2 USRP sources connected to 2 Frequency GUI. However even running at a sampling rate of 64Kbps I am getting an overflow error. I thought that maybe the jetson tk1 couldn't handle the bandwidth but running it on my PC I get the same results. The output is as follows:
Executing: "/home/chad/Tx1_Rx2.py" linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.008.001-42-g8c87a524 -- Operating over USB 3. -- Initialize CODEC control... -- Initialize Radio control... -- Performing register loopback test... pass -- Performing register loopback test... pass -- Performing CODEC loopback test... pass -- Performing CODEC loopback test... pass -- Asking for clock rate 32.000000 MHz... -- Actually got clock rate 32.000000 MHz. -- Performing timer loopback test... pass -- Performing timer loopback test... pass -- Setting master clock rate selection to 'automatic'. -- Asking for clock rate 32.768000 MHz... -- Actually got clock rate 32.768000 MHz. -- Performing timer loopback test... pass -- Performing timer loopback test... pass -- Successfully tuned to 100.000000 MHz -- -- Asking for clock rate 32.768000 MHz... OK -- Successfully tuned to 100.000000 MHz -- -- Asking for clock rate 32.768000 MHz... OK -- Successfully tuned to 100.000000 MHz -- Using Volk machine: avx_64_mmx -- Asking for clock rate 32.768000 MHz... OK -- Asking for clock rate 32.768000 MHz... OK -- Asking for clock rate 32.768000 MHz... OK -- Asking for clock rate 32.768000 MHz... OK -- Asking for clock rate 32.768000 MHz... OK -- Asking for clock rate 32.768000 MHz... OK DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDS Surely I shouldn't get overflow errors at such a low sampling rate? When I run the benchmark_rate it returns no errors. Any help would be appreciated. Chad
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