1 files changed, 40 insertions, 0 deletions
diff --git a/gnuradio-examples/python/digital/gen_whitener.py b/gnuradio-examples/python/digital/gen_whitener.py
new file mode 100755
index 000000000..93aea2b82
--- /dev/null
+++ b/gnuradio-examples/python/digital/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.flow_graph):
+
+    def __init__(self):
+        gr.flow_graph.__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:
+        fg = my_graph()
+        fg.run()
+        f = sys.stdout
+        i = 0
+        for s in fg.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
+    
+