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