[Commit-gnuradio] r6370 - gnuradio/trunk/gr-utils/src/python

[matt]

Author: matt
Date: 2007-09-08 15:17:20 -0600 (Sat, 08 Sep 2007)
New Revision: 6370

Modified:
   gnuradio/trunk/gr-utils/src/python/usrp_siggen.py
Log:
added option to set the gain 


Modified: gnuradio/trunk/gr-utils/src/python/usrp_siggen.py
===================================================================
--- gnuradio/trunk/gr-utils/src/python/usrp_siggen.py   2007-09-08 21:16:25 UTC 
(rev 6369)
+++ gnuradio/trunk/gr-utils/src/python/usrp_siggen.py   2007-09-08 21:17:20 UTC 
(rev 6370)
@@ -133,6 +133,8 @@
                        help="set waveform frequency to FREQ 
[default=%default]")
     parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
                        help="set waveform amplitude to AMPLITUDE 
[default=%default]", metavar="AMPL")
+    parser.add_option ("-g", "--gain", type="eng_float", default=None,
+                       help="set output gain to GAIN [default=%default]")
     parser.add_option ("-o", "--offset", type="eng_float", default=0,
                        help="set waveform offset to OFFSET [default=%default]")
     (options, args) = parser.parse_args ()
@@ -163,7 +165,10 @@
     fg.subdev = usrp.selected_subdev(fg.u, options.tx_subdev_spec)
     print "Using TX d'board %s" % (fg.subdev.side_and_name(),)
     
-    fg.subdev.set_gain(fg.subdev.gain_range()[1])    # set max Tx gain
+    if options.gain is None:
+        fg.subdev.set_gain(fg.subdev.gain_range()[1])    # set max Tx gain
+    else:
+        fg.subdev.set_gain(options.gain)    # set max Tx gain
 
     if not fg.set_freq(options.rf_freq):
         sys.stderr.write('Failed to set RF frequency\n')