Sudo ldconfig worked. Now I get this:
Traceback (most recent call last):
File "/home/jonfox/gnuradio/spectrum_sensing_test.py", line 214, in <module>
tb.Run(True)
File "/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", line 76, in Run
self.start()
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line 97, in start
self._tb.start(max_noutput_items)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_runtime.py", line 1768, in start
return _gnuradio_core_runtime.gr_top_block_sptr_start(self, max_noutput_items)
RuntimeError: gr_buffer_add_reader: nzero_preload must be >= 0
I have looked up the last line in Google and found an email requesting the flow graph be attached (although it was a differenet user) so see attached.
For the code snippets, let me start with this error.
File "/home/jonfox/gnuradio/spectrum_sensing_test.py", line 213, in <module>
tb = spectrum_sensing_test(freq=options.freq, address=options.address, samp_rate=options.samp_rate, gain=options.gain, fft_vector=options.fft_vector)
File "/home/jonfox/gnuradio/spectrum_sensing_test.py", line 142, in __init__
self.connect((self.blks2_logpwrfft_x_0, 0), (self.specsense_edetect_cl_ff_0, 0))
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line 124, in connect
self._connect(points[i-1], points[i])
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line 130, in _connect
dst_block.to_basic_block(), dst_port)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_runtime.py", line 1836, in primitive_connect
return _gnuradio_core_runtime.gr_top_block_sptr_primitive_connect(self, *args)
ValueError: itemsize mismatch: logpwrfft_c(17):0 using 2048, edetect_cl_ff(13):0 using 4
This is the vector mismatch error despite the fact I have looked up other blocks and followed their code for vector implementation.
The .cc
specsense_edetect_cl_ff_sptr
specsense_make_edetect_cl_ff (size_t vlen)
{
return specsense_edetect_cl_ff_sptr (new specsense_edetect_cl_ff (vlen));
}
static const int MIN_IN = 1; // mininum number of input streams
static const int MAX_IN = 1; // maximum number of input streams
static const int MIN_OUT = 1; // minimum number of output streams
static const int MAX_OUT = 1; // maximum number of output streams
specsense_edetect_cl_ff::specsense_edetect_cl_ff (size_t vlen)
: gr_block ("edetect_cl_ff",
gr_make_io_signature (MIN_IN, MAX_IN, sizeof (float) * vlen),
gr_make_io_signature (MIN_IN, MAX_OUT, sizeof (float) * vlen)),
d_vlen (vlen)
{
}
the .h
class specsense_edetect_cl_ff;
typedef boost::shared_ptr<specsense_edetect_cl_ff> specsense_edetect_cl_ff_sptr;
SPECSENSE_API specsense_edetect_cl_ff_sptr specsense_make_edetect_cl_ff (size_t vlen = 1);
/*!
* \brief <+description+>
*
*/
class SPECSENSE_API specsense_edetect_cl_ff : public gr_block
{
friend SPECSENSE_API specsense_edetect_cl_ff_sptr specsense_make_edetect_cl_ff (size_t vlen);
specsense_edetect_cl_ff (size_t vlen);
size_t d_vlen;
the .xml
<?xml version="1.0"?>
<block>
<name>edetect_cl_ff</name>
<key>specsense_edetect_cl_ff</key>
<category>specsense</category>
<import>import specsense</import>
<make>specsense.edetect_cl_ff()</make>
<!-- Make one 'param' node for every Parameter you want settable from the GUI.
Sub-nodes:
* name
* key (makes the value accessible as $keyname, e.g. in the make node)
* type -->
<param>
<name>Vec Length</name>
<key>vlen</key>
<value>1</value>
<type>int</type>
</param>
<check>$vlen > 0</check>
<sink>
<name>in</name>
<type>float</type>
<vlen>$vlen</vlen>
</sink>
<source>
<name>out</name>
<type>float</type>
<vlen>$vlen</vlen>
</source>
</block>
Anything else I should post?
spectrum_sensing_test.py