digital: copying over rest of blocks from gnuradio-core to gr-digital.

Includes moving GRC and QA code; new ones where missing.

Have not removed blocks from gnuradio-core for compatibility.

1 files changed, 65 insertions, 0 deletions

diff --git a/gr-digital/python/qa_scrambler.py b/gr-digital/python/qa_scrambler.py
new file mode 100755
index 000000000..f5bd61242
--- /dev/null
+++ b/gr-digital/python/qa_scrambler.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+#
+# Copyright 2008,2010,2012 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 gnuradio import gr, gr_unittest
+import digital_swig as digital
+
+class test_scrambler(gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_scrambler_descrambler(self):
+        src_data = (1,)*1000
+        src = gr.vector_source_b(src_data, False)
+        scrambler = digital.scrambler_bb(0x8a, 0x7F, 7)     # CCSDS 7-bit scrambler
+        descrambler = digital.descrambler_bb(0x8a, 0x7F, 7)
+        dst = gr.vector_sink_b()
+        self.tb.connect(src, scrambler, descrambler, dst)
+        self.tb.run()
+        self.assertEqual(tuple(src_data[:-8]), dst.data()[8:]) # skip garbage during synchronization
+
+    def test_additive_scrambler(self):
+        src_data = (1,)*1000
+        src = gr.vector_source_b(src_data, False)
+        scrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7)
+        descrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7)
+        dst = gr.vector_sink_b()
+        self.tb.connect(src, scrambler, descrambler, dst)
+        self.tb.run()
+        self.assertEqual(src_data, dst.data())
+
+    def test_additive_scrambler_reset(self):
+        src_data = (1,)*1000
+        src = gr.vector_source_b(src_data, False)
+        scrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7, 100)
+        descrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7, 100)
+        dst = gr.vector_sink_b()
+        self.tb.connect(src, scrambler, descrambler, dst)
+        self.tb.run()
+        self.assertEqual(src_data, dst.data())
+
+if __name__ == '__main__':
+    gr_unittest.run(test_scrambler, "test_scrambler.xml")