I have two out of tree blocks I want to add to GRC, everything compiles and
installs correctly except for the GRC component (not shown in GRC). So this
should be an XML issue and I think it is related to my attempts at making a
drop down option choice concerning the detection of white space/closed
frequencies and verbose output. My XML is attached below and you can see
that under Params Desired Detection and Verbose have options.
When I look at other stock GNU Radio block's XML like the low pass filter,
I see that some params have opt tags. Do I need these also, if so how would
I use them in my case?
Thanks,
Jon
<?xml version="1.0"?>
<block>
<name>Energy Detector</name>
<key>specsense_energy_detector_ff</key>
<category>specsense</category>
<import>import specsense</import>
<make>specsense.energy_detector_ff($vlen, $eta, $white_space, $samp_rate, $cntr_freq, $verbose)</make>
<!-- Make one 'param' node for every Parameter you want settable from the GUI.
Sub-nodes:
* name
* key (makes the value accessible as $keyname, e.g. in the make node)
* type -->
<callback>set_eta($eta)</callback>
<param>
<name>FFT Size</name>
<key>vlen</key>
<value>1</value>
<type>int</type>
</param>
<param>
<name>Threshold</name>
<key>eta</key>
<value>0</value>
<type>float</type>
</param>
<param>
<name>Sample Rate</name>
<key>samp_rate</key>
<value>1</value>
<type>float</type>
</param>
<param>
<name>Center Frequency</name>
<key>cntr_freq</key>
<value>0</value>
<type>float</type>
</param>
<param>
<name>Desired Detection</name>
<key>white_space</key>
<type>bool</type>
<option>
<name>Open Band</name>
<value>True</value>
</option>
<option>
<name>Closed Band</name>
<value>False</value>
</option>
</param>
<param>
<name>Verbose</name>
<key>verbose</key>
<type>bool</type>
<option>
<name>Yes</name>
<value>True</value>
</option>
<option>
<name>No</name>
<value>False</value>
</option>
</param>
<!-- Make one 'sink' node per input. Sub-nodes:
* name (an identifier for the GUI)
* type
* vlen
* optional (set to 1 for optional inputs) -->
<sink>
<name>in</name>
<type>float</type>
<vlen>$vlen</vlen>
</sink>
<!-- Make one 'source' node per output. Sub-nodes:
* name (an identifier for the GUI)
* type
* vlen
* optional (set to 1 for optional inputs) -->
<source>
<name>out</name>
<type>float</type>
</source>
</block>
<?xml version="1.0"?>
<block>
<name>Energy Detector Sink</name>
<key>specsense_energy_detector_sink_f</key>
<category>specsense</category>
<import>import specsense</import>
<make>specsense.energy_detector_sink_f($vlen, $eta, $white_space, $samp_rate, $cntr_freq, $verbose)</make>
<!-- Make one 'param' node for every Parameter you want settable from the GUI.
Sub-nodes:
* name
* key (makes the value accessible as $keyname, e.g. in the make node)
* type -->
<callback>set_eta($eta)</callback>
<param>
<name>FFT Size</name>
<key>vlen</key>
<value>1</value>
<type>int</type>
</param>
<param>
<name>Threshold</name>
<key>eta</key>
<value>0</value>
<type>float</type>
</param>
<param>
<name>Sample Rate</name>
<key>samp_rate</key>
<value>1</value>
<type>float</type>
</param>
<param>
<name>Center Frequency</name>
<key>cntr_freq</key>
<value>0</value>
<type>float</type>
</param>
<param>
<name>Desired Detection</name>
<key>white_space</key>
<type>bool</type>
<option>
<name>Open Band</name>
<value>True</value>
</option>
<option>
<name>Closed Band</name>
<value>False</value>
</option>
</param>
<param>
<name>Verbose</name>
<key>verbose</key>
<type>bool</type>
<option>
<name>Yes</name>
<value>True</value>
</option>
<option>
<name>No</name>
<value>False</value>
</option>
</param>
<!-- Make one 'sink' node per input. Sub-nodes:
* name (an identifier for the GUI)
* type
* vlen
* optional (set to 1 for optional inputs) -->
<sink>
<name>in</name>
<type>float</type>
<vlen>$vlen</vlen>
</sink>
<!-- Make one 'source' node per output. Sub-nodes:
* name (an identifier for the GUI)
* type
* vlen
* optional (set to 1 for optional inputs) -->
<source>
<name>out</name>
<type><!-- e.g. int, float, complex, byte, short, xxx_vector, ...--></type>
</source>
</block>
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