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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Signal Source
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Signal Source</name>
   9         <key>gr_sig_source_x</key>
  10         <import>from gnuradio import gr</import>
  11         <make>gr.sig_source_$(type.fcn)($samp_rate, $waveform, $freq, $amp, $offset)</make>
  12         <callback>set_sampling_freq($samp_rate)</callback>
  13         <callback>set_frequency($freq)</callback>
  14         <callback>set_amplitude($amp)</callback>
  15         <callback>set_offset($offset)</callback>
  16         <param>
  17                 <name>Output Type</name>
  18                 <key>type</key>
  19                 <type>enum</type>
  20                 <option>
  21                         <name>Complex</name>
  22                         <key>complex</key>
  23                         <opt>fcn:c</opt>
  24                 </option>
  25                 <option>
  26                         <name>Float</name>
  27                         <key>float</key>
  28                         <opt>fcn:f</opt>
  29                 </option>
  30                 <option>
  31                         <name>Int</name>
  32                         <key>int</key>
  33                         <opt>fcn:i</opt>
  34                 </option>
  35                 <option>
  36                         <name>Short</name>
  37                         <key>short</key>
  38                         <opt>fcn:s</opt>
  39                 </option>
  40         </param>
  41         <param>
  42                 <name>Sample Rate</name>
  43                 <key>samp_rate</key>
  44                 <value>samp_rate</value>
  45                 <type>real</type>
  46         </param>
  47         <param>
  48                 <name>Waveform</name>
  49                 <key>waveform</key>
  50                 <value>gr.GR_COS_WAVE</value>
  51                 <type>enum</type>
  52                 <option>
  53                         <name>Constant</name>
  54                         <key>gr.GR_CONST_WAVE</key>
  55                 </option>
  56                 <option>
  57                         <name>Sine</name>
  58                         <key>gr.GR_SIN_WAVE</key>
  59                 </option>
  60                 <option>
  61                         <name>Cosine</name>
  62                         <key>gr.GR_COS_WAVE</key>
  63                 </option>
  64                 <option>
  65                         <name>Square</name>
  66                         <key>gr.GR_SQR_WAVE</key>
  67                 </option>
  68                 <option>
  69                         <name>Triangle</name>
  70                         <key>gr.GR_TRI_WAVE</key>
  71                 </option>
  72                 <option>
  73                         <name>Saw Tooth</name>
  74                         <key>gr.GR_SAW_WAVE</key>
  75                 </option>
  76         </param>
  77         <param>
  78                 <name>Frequency</name>
  79                 <key>freq</key>
  80                 <value>1000</value>
  81                 <type>real</type>
  82         </param>
  83         <param>
  84                 <name>Amplitude</name>
  85                 <key>amp</key>
  86                 <value>1</value>
  87                 <type>real</type>
  88         </param>
  89         <param>
  90                 <name>Offset</name>
  91                 <key>offset</key>
  92                 <value>0</value>
  93                 <type>complex</type>
  94         </param>
  95         <source>
  96                 <name>out</name>
  97                 <type>$type</type>
  98         </source>
  99 </block>