From 97280002b62c2a89a32362a826325f5e70b8b860 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Mon, 3 Oct 2011 20:43:53 -0400
Subject: uhd: removing multi-antenna stuff frmo gnuradio-examples
---
.../python/multi-antenna/multi_file.py | 134 ---------------------
1 file changed, 134 deletions(-)
delete mode 100755 gnuradio-examples/python/multi-antenna/multi_file.py
(limited to 'gnuradio-examples/python/multi-antenna/multi_file.py')
diff --git a/gnuradio-examples/python/multi-antenna/multi_file.py b/gnuradio-examples/python/multi-antenna/multi_file.py
deleted file mode 100755
index 87d9085e31..0000000000
--- a/gnuradio-examples/python/multi-antenna/multi_file.py
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/usr/bin/env python
-
-from gnuradio import gr, gru, eng_notation
-from gnuradio import usrp
-from gnuradio.eng_option import eng_option
-from gnuradio import eng_notation
-from gnuradio import optfir
-from optparse import OptionParser
-from usrpm import usrp_dbid
-import time
-import os.path
-import sys
-
-# required FPGA that can do 4 rx channels.
-
-
-class my_graph(gr.top_block):
-
- def __init__(self):
- gr.top_block.__init__(self)
-
- parser = OptionParser (option_class=eng_option)
- #parser.add_option("-S", "--subdev", type="subdev", default=(0, None),
- # help="select USRP Rx side A or B (default=A)")
- parser.add_option("-d", "--decim", type="int", default=128,
- help="set fgpa decimation rate to DECIM [default=%default]")
- parser.add_option("-f", "--freq", type="eng_float", default=146.585e6,
- help="set frequency to FREQ [default=%default])", metavar="FREQ")
- parser.add_option("-g", "--gain", type="eng_float", default=20,
- help="set gain in dB [default=%default]")
- parser.add_option("-F", "--filter", action="store_true", default=True,
- help="Enable channel filter")
- parser.add_option("-o", "--output", type="string", default=None,
- help="set output basename")
- (options, args) = parser.parse_args()
-
- if len(args) != 0:
- parser.print_help()
- raise SystemExit
-
- if options.output is None:
- parser.print_help()
- sys.stderr.write("You must provide an output filename base with -o OUTPUT\n")
- raise SystemExit
- else:
- basename = options.output
-
- nchan = 4
- nsecs = 4.0
-
- if options.filter:
- sw_decim = 4
- else:
- sw_decim = 1
-
- self.u = usrp.source_c(0, options.decim, fpga_filename="std_4rx_0tx.rbf")
- if self.u.nddcs() < nchan:
- sys.stderr.write('This code requires an FPGA build with %d DDCs. This FPGA has only %d.\n' % (
- nchan, self.u.nddcs()))
- raise SystemExit
-
- if not self.u.set_nchannels(nchan):
- sys.stderr.write('set_nchannels(%d) failed\n' % (nchan,))
- raise SystemExit
-
- input_rate = self.u.adc_freq() / self.u.decim_rate()
- print "USB data rate = %s" % (eng_notation.num_to_str(input_rate),)
- sink_data_rate = input_rate/sw_decim
- print "Scope data rate = %s" % (eng_notation.num_to_str(sink_data_rate),)
-
- self.subdev = self.u.db(0) + self.u.db(1)
-
- if (len(self.subdev) < 4 or
- self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX or
- self.u.db(1, 0).dbid() != usrp_dbid.BASIC_RX):
- sys.stderr.write('This code requires a Basic Rx board on Sides A & B\n')
- sys.exit(1)
-
- self.u.set_mux(gru.hexint(0xf3f2f1f0))
-
- # collect 1 second worth of data
- limit = int(nsecs * input_rate * nchan)
- print "limit = ", limit
- head = gr.head(gr.sizeof_gr_complex, limit)
-
- # deinterleave four channels from FPGA
- di = gr.deinterleave(gr.sizeof_gr_complex)
-
- self.connect(self.u, head, di)
-
- # taps for channel filter
- chan_filt_coeffs = optfir.low_pass (1, # gain
- input_rate, # sampling rate
- 80e3, # passband cutoff
- 115e3, # stopband cutoff
- 0.1, # passband ripple
- 60) # stopband attenuation
- #print len(chan_filt_coeffs)
-
- for i in range(nchan):
-
- sink = gr.file_sink(gr.sizeof_gr_complex,
- basename + ("-%s-%d.dat" % (eng_notation.num_to_str(sink_data_rate), i)))
- if options.filter:
- chan_filt = gr.fir_filter_ccf(sw_decim, chan_filt_coeffs)
- self.connect((di, i), chan_filt, sink)
- else:
- self.connect((di, i), sink)
-
-
- self.set_gain(options.gain)
- self.set_freq(options.freq)
-
- def set_gain(self, gain):
- for i in range(len(self.subdev)):
- self.subdev[i].set_gain(gain)
-
- def set_freq(self, target_freq):
- ok = True
- for i in range(len(self.subdev)):
- r = usrp.tune(self.u, i, self.subdev[i], target_freq)
- if not r:
- ok = False
- print "set_freq: failed to set subdev[%d] freq to %f" % (
- i, target_freq)
-
- return ok
-
-
-def main ():
- my_graph().run()
-
-if __name__ == '__main__':
- main ()
--
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