# Gnuradio over Zynq **URL:** \ **Category:** GNU Radio\ **Created:** [October 28, 2014, 8:59am UTC](https://www.ruby-forum.com/t/gnuradio-over-zynq/232783 "2014-10-28T08:59:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\ **Post date:** [October 28, 2014, 8:59am UTC](https://www.ruby-forum.com/t/gnuradio-over-zynq/232783/1 "2014-10-28T08:59:47Z")
Hi, I would like to run the example from the GNURadio adaptation for Zynq ( [http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq](http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq)), but I am not able to run it, it gives me a coredump. I managed to create the bootable card, at least I think so as the example does not work. What I did: zedboard\> cat zedboard.bin \> /dev/xdevcfg zedboard\> cat /sys/devices/amba.0/f8007000.ps7-dev-cfg/prog\_done 1 zedboard\> ./zynq\_fir\_filter\_example Read the FPGA status… /sys/devices/amba.0/f8007000.ps7-dev-cfg/prog\_done = 1 Setup the driver… Segmentation fault (core dumped) zedboard\> file zynq\_fir\_filter\_example zynq\_fir\_filter\_example: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, BuildID[sha1]=b241efee0c9289c30bd2c24975a628f74c270b4d, not stripped zedboard\> uname -a Linux zedboard-zynq7 3.14.2-xilinx #1 SMP PREEMPT Fri Oct 24 09:13:25 CEST 2014 armv7l GNU/Linux zedboard\> # gdb GNU gdb (GDB) 7.6.2 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later \<[The GNU General Public License v3.0 - GNU Project - Free Software Foundation](http://gnu.org/licenses/gpl.html) > This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type “show copying” and “show warranty” for details. This GDB was configured as “arm-oe-linux-gnueabi”. For bug reporting instructions, please see: [http://www.gnu.org/software/gdb/bugs/](http://www.gnu.org/software/gdb/bugs/). (gdb) core core [New LWP 882] Core was generated by `./zynq\_fir\_filter\_example’. Program terminated with signal 11, Segmentation fault. #0 0xb6eade80 in ?? () (gdb) bt #0 0xb6eade80 in ?? () #1 0x0000966c in ?? () #2 0x0000966c in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) * * * The compilation of the example was OK, no error, the compilation and installation of gr-zynq module, the same. Have some one else tried this zynq implementation recently? – Best regards… ``` Daniel ``` ---
**Author:** ![dcarneiro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/e36b37/32.png) [@dcarneiro](https://www.ruby-forum.com/u/dcarneiro)\ **Post date:** [October 28, 2014, 6:03pm UTC](https://www.ruby-forum.com/t/gnuradio-over-zynq/232783/2 "2014-10-28T18:03:25Z")
I know we have been talking over email, but I wanted to post this for everyone to see. The Zynq build wiki has gotten a little out of date and over the next few weeks I’ll be updating it to fix various issues that have been brought up. As well, there has been a lot great work on the Open Embedded side that makes building images even easier, so expect a rather large update to the wiki. – View this message in context: [http://gnuradio.4.n7.nabble.com/Gnuradio-over-Zynq-tp51051p51061.html](http://gnuradio.4.n7.nabble.com/Gnuradio-over-Zynq-tp51051p51061.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![dcarneiro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/e36b37/32.png) [@dcarneiro](https://www.ruby-forum.com/u/dcarneiro)\ **Post date:** [October 30, 2014, 8:14am UTC](https://www.ruby-forum.com/t/gnuradio-over-zynq/232783/3 "2014-10-30T08:14:16Z")
Hi, just to register the cause of the error, if can be helpful for others in the future! The problem was that the module user\_peripheral was missing. Apparently when you configure the it and when you get the oe manifest with the daisy branch it does not come by default. The ideal is to use the stable branch. > git clone git://github.com/balister/oe-gnuradio-manifest.git -b stable moreover, after,you manage to have a bootable card, before trying the example you need to insert the module. For me: > insmod /lib/modules/3.8.11-xilinx/extra/user\_peripheral.ko Otherwise you will get an null pointer exception when it tries to get the attributes of the device on the line: \*buffer\_length = atol(udev\_device\_get\_sysattr\_value(dev, “xx\_buf\_len”)); Best regards… ``` Daniel ``` On Tue, Oct 28, 2014 at 8:58 AM, Daniel C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > What I did: > > GNU gdb (GDB) 7.6.2 > [New LWP 882] > The compilation of the example was OK, no error, the compilation and > installation of gr-zynq module, the same. > > Have some one else tried this zynq implementation recently? > > – > Best regards… > > ``` > Daniel > > ``` – Best regards… ``` Daniel ```