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From: | samuel verdon |
Subject: | [Discuss-gnuradio] External command USRP seg fault |
Date: | Wed, 5 Dec 2018 10:14:35 +0100 |
Hello, I’m trying to command my usrp B200mini via its command port. I used the documentation from here: https://www.gnuradio.org/doc/doxygen/page_uhd.html here is my command: pmt::pmt_t command = pmt::make_dict(); command = pmt::dict_add(command, pmt::mp("gain"), pmt::mp(gain)); // Specify gain command = pmt::dict_add(command, pmt::mp("antenna"), pmt::mp("TX/RX")); // Switch antenna command = pmt::dict_add(command, pmt::mp("chan"), pmt::mp(0)); // Specify channel message_port_pub(pmt::mp("cmd") , command); I connect my block to a debug message block, and I received this ************MESSAGE DEBUG PRINT*************** ((chan. 0) (antenna, TX/RX) (gain, 63)) But when I connect to the “UHD: USRP sink” I get a segmentation fault… ☹ I have tried different command always the same problem. Can someone show me an example working with tis command? I am quite deseparate.. Ubuntu 16.04 Gnuradio 3.7.12 UHD driver UHD_3.11 Thank you for your help |
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