Gnuradio over Zynq

GNU Radio
1

Hi,

I would like to run the example from the GNURadio adaptation for 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

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/.
(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
2

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The Zynq build wiki has gotten a little out of date and over the next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
Sent from the GnuRadio mailing list archive at Nabble.com.

3

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. [email protected]
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