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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##USRP Simple Source
   5 ###################################################
   6  -->
   7 <block>
   8         <name>USRP Source</name>
   9         <key>usrp_simple_source_x</key>
  10         <import>from grc_gnuradio import usrp as grc_usrp</import>
  11         <make>grc_usrp.simple_source_$(type.fcn)(which=$which, side=$side, rx_ant=$rx_ant#if $hb_filters() then ', no_hb=True' else ''#)
  12 #if $format()
  13 self.$(id).set_format(width=$format.width, shift=$format.shift)
  14 #end if
  15 self.$(id).set_decim_rate($decimation)
  16 self.$(id).set_frequency($frequency, verbose=True#slurp
  17 #if $lo_offset() != float('inf')
  18 , lo_offset=$lo_offset#slurp
  19 #end if
  20 )
  21 self.$(id).set_gain($gain)</make>
  22         <callback>set_decim_rate($decimation)</callback>
  23         <callback>set_frequency($frequency#slurp
  24 #if $lo_offset() != float('inf')
  25 , lo_offset=$lo_offset#slurp
  26 #end if
  27 )</callback>
  28         <callback>set_gain($gain)</callback>
  29         <param>
  30                 <name>Output Type</name>
  31                 <key>type</key>
  32                 <type>enum</type>
  33                 <option>
  34                         <name>Complex</name>
  35                         <key>complex</key>
  36                         <opt>fcn:c</opt>
  37                 </option>
  38                 <option>
  39                         <name>Short</name>
  40                         <key>short</key>
  41                         <opt>fcn:s</opt>
  42                 </option>
  43         </param>
  44         <param>
  45                 <name>Format</name>
  46                 <key>format</key>
  47                 <value></value>
  48                 <type>enum</type>
  49                 <hide>#if $format() then '' else 'part'#</hide>
  50                 <option>
  51                         <name>16 Bits (Default)</name>
  52                         <key></key>
  53                         <opt>width:16</opt>
  54                         <opt>shift:0</opt>
  55                 </option>
  56                 <option>
  57                         <name>8 Bits, Shift 8</name>
  58                         <key>w8_s8</key>
  59                         <opt>width:8</opt>
  60                         <opt>shift:8</opt>
  61                 </option>
  62         </param>
  63         <param>
  64                 <name>Unit Number</name>
  65                 <key>which</key>
  66                 <value>0</value>
  67                 <type>int</type>
  68         </param>
  69         <param>
  70                 <name>Decimation</name>
  71                 <key>decimation</key>
  72                 <type>int</type>
  73         </param>
  74         <param>
  75                 <name>Frequency (Hz)</name>
  76                 <key>frequency</key>
  77                 <type>real</type>
  78         </param>
  79         <param>
  80                 <name>LO Offset (Hz)</name>
  81                 <key>lo_offset</key>
  82                 <value>float('inf')</value>
  83                 <type>real</type>
  84                 <hide>#if $lo_offset() == float('inf') then 'part' else 'none'#</hide>
  85                 <option>
  86                         <name>Default</name>
  87                         <key>float('inf')</key>
  88                 </option>
  89         </param>
  90         <param>
  91                 <name>Gain (dB)</name>
  92                 <key>gain</key>
  93                 <value>0</value>
  94                 <type>real</type>
  95         </param>
  96         <param>
  97                 <name>Side</name>
  98                 <key>side</key>
  99                 <value>A</value>
 100                 <type>string</type>
 101                 <option>
 102                         <name>A</name>
 103                         <key>A</key>
 104                 </option>
 105                 <option>
 106                         <name>B</name>
 107                         <key>B</key>
 108                 </option>
 109         </param>
 110         <param>
 111                 <name>RX Antenna</name>
 112                 <key>rx_ant</key>
 113                 <value>RXA</value>
 114                 <type>string</type>
 115                 <option>
 116                         <name>RXA</name>
 117                         <key>RXA</key>
 118                 </option>
 119                 <option>
 120                         <name>RXB</name>
 121                         <key>RXB</key>
 122                 </option>
 123                 <option>
 124                         <name>RXAB</name>
 125                         <key>RXAB</key>
 126                 </option>
 127                 <option>
 128                         <name>TX/RX</name>
 129                         <key>TX/RX</key>
 130                 </option>
 131                 <option>
 132                         <name>RX2</name>
 133                         <key>RX2</key>
 134                 </option>
 135         </param>
 136         <param>
 137                 <name>Halfband Filters</name>
 138                 <key>hb_filters</key>
 139                 <value></value>
 140                 <type>enum</type>
 141                 <hide>#if $hb_filters() then 'none' else 'part'#</hide>
 142                 <option>
 143                         <name>Enable</name>
 144                         <key></key>
 145                 </option>
 146                 <option>
 147                         <name>Disable</name>
 148                         <key>1</key>
 149                 </option>
 150         </param>
 151         <source>
 152                 <name>out</name>
 153                 <type>$type</type>
 154         </source>
 155         <doc>
 156 The USRP source outputs 64 Megasamples per second / decimation.
 157
 158 The "Receive Antenna Setting" selects one of the SMA connectors as the data source. \
 159 Flex RF boards use the "TX/RX" and "RX2" settings. \
 160 Basic RX and LFRX use the "RXA", "RXB", and "RXAB" settings. \
 161 All other boards use the "RXA" setting.
 162
 163 With the format set to 8 bits and the halfband filters disabled, the USRP can acheive a decimation rate of 4. \
 164 Disabling the halfband filters requires a special USRP firmware without halfband filters or TX paths. \
 165 For this reason, the USRP cannot transmit with the halfband filters disabled.
 166         </doc>
 167 </block>