3 files changed, 131 insertions, 2 deletions
diff --git a/gr-digital/examples/Makefile.am b/gr-digital/examples/Makefile.am
index ca36716fa..0643363c0 100644
--- a/gr-digital/examples/Makefile.am
+++ b/gr-digital/examples/Makefile.am
@@ -24,10 +24,16 @@ include $(top_srcdir)/Makefile.common
 ourdatadir = $(exampledir)/digital
 
 noinst_PYTHON = 		\
-	example_fll.py
+	example_costas.py	\
+	example_fll.py		\
+	example_timing.py
 
 dist_ourdata_SCRIPTS = \
 	transmit_path.py	\
-	receive_path.py
+	receive_path.py		\
+	benchmark_tx.py		\
+	benchmark_rx.py		\
+	run_length.py		\
+	gen_whitener.py
 
 
diff --git a/gr-digital/examples/gen_whitener.py b/gr-digital/examples/gen_whitener.py
new file mode 100755
index 000000000..9a81e4eaa
--- /dev/null
+++ b/gr-digital/examples/gen_whitener.py
@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+from gnuradio import gr, gru
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import sys
+
+class my_graph(gr.top_block):
+
+    def __init__(self):
+        gr.top_block.__init__(self)
+
+        parser = OptionParser(option_class=eng_option)
+        (options, args) = parser.parse_args ()
+        if len(args) != 0:
+            parser.print_help()
+            raise SystemExit, 1
+
+        src = gr.lfsr_32k_source_s()
+        head = gr.head(gr.sizeof_short, 2048)
+        self.dst = gr.vector_sink_s()
+        self.connect(src, head, self.dst)
+
+if __name__ == '__main__':
+    try:
+        tb = my_graph()
+        tb.run()
+        f = sys.stdout
+        i = 0
+        for s in tb.dst.data():
+            f.write("%3d, " % (s & 0xff,))
+            f.write("%3d, " % ((s >> 8) & 0xff,))
+            i = i+2
+            if i % 16 == 0:
+                f.write('\n')
+                    
+    except KeyboardInterrupt:
+        pass
+    
+    
diff --git a/gr-digital/examples/run_length.py b/gr-digital/examples/run_length.py
new file mode 100755
index 000000000..5020655db
--- /dev/null
+++ b/gr-digital/examples/run_length.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+#
+# Copyright 2007 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+# 
+
+from optparse import OptionParser
+import sys
+
+def main():
+    parser = OptionParser()
+    parser.add_option("-f", "--file", default=None,
+                      help="Choose file to read data from.")
+    (options, args) = parser.parse_args()
+
+    if options.file == None:
+        print "Must specify file to read from using '-f'."
+        sys.exit(1)
+    print "Using", options.file, "for data."
+
+    f = open(options.file, 'r')
+    runs = []
+    count = 0
+    current = 0
+    bytes = 0
+    bits = 0
+    
+    for ch in f.read():
+        x = ord(ch)
+        bytes = bytes + 1
+        for i in range(7,-1,-1):
+            bits = bits + 1
+            t = (x >> i) & 0x1
+            if t == current:
+                count = count + 1
+            else:
+                if count > 0:
+                    if len(runs) < count:
+                        for j in range(count - len(runs)):
+                            runs.append(0);
+                    runs[count-1] = runs[count-1] + 1
+
+                current = 1-current;
+                count = 1
+
+    # Deal with last run at EOF
+    if len(runs) < count and count > 0:
+        for j in range(count - len(runs)):
+            runs.append(0);
+    runs[count-1] = runs[count-1] + 1
+
+    chk = 0
+    print "Bytes read: ", bytes
+    print "Bits read:  ", bits
+    print
+    for i in range(len(runs)):
+        chk = chk + runs[i]*(i+1)
+        print "Runs of length", i+1, ":", runs[i]
+    print
+    print "Sum of runs:", chk, "bits"
+    print
+    print "Maximum run length is", len(runs), "bits"
+
+if __name__ == "__main__":
+    main()
+
+