Hello, I have the following setup: a file source, a deinterleave block and a USRP sink (see the attached .grc and related .png). This setup is a test to distribute two different signals on two channels of the USRP x300 (the file source loads a binary file with alternated channels containing 64 bit long IQ samples - 32 real followed by 32 imaginary - channel 1/channel 2/channel 1/channel 2/etc...).
The hardware is a USRP x300 with two wideband SBX (SBX-120) boards. Now, the above setup used to function without a hitch. But recently, it completely freezes gnuradio. Basically, I start the flowgraph and quickly get a large number of 'L' and no signal is transmitted. The only thing I can do is then to kill gnuradio-companion and related python processes. The interesting thing is that if I replace the deinterleave block by a "stream to streams" block, everything works fine. I am bit puzzled as to what I am missing. The operating system is Ubuntu 14.04 LTS (updated state), UHD is the head of the maint branch, and gnuradio as well (UHD_003.007.002-2-gdb35bf46 and Gnuradio: 9dcb5067c55a0630c9edca6b62a32b1f8e633930). Firmware is also the most recent. I have attached the .grc, and the binary file I am using can be obtained here: http://www.net.t-labs.tu-berlin.de/~ruben/files/sine_test_10kHz_20kHz_cpx_float_2chan_interleaved_1MSs.bin. Assuming there is not something wrong in my .grc setup, how do I debug this issue? Thanks for any suggestion or help, Ruben
deinterleave_test.grc
Description: deinterleave_test.grc
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