Implement frame synchronization

There is an issue somewhere between the mod and demod, since frame
synchronization works on a direct path.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/gr-fadingui/python/qa_xor_frame_sync.py b/src/gr-fadingui/python/qa_xor_frame_sync.py
new file mode 100644
index 0000000..280c694
--- /dev/null
+++ b/src/gr-fadingui/python/qa_xor_frame_sync.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+from gnuradio import gr, gr_unittest, blocks
+
+from xor_frame_sync import xor_frame_sync
+import numpy as np
+
+
+class test_xor_frame_sync(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_001(self):
+        """Test a byte aligned delay"""
+        pattern = np.array([0xbe, 0xef], dtype=np.uint8)
+        testdata = np.packbits(np.concatenate([
+            np.unpackbits(np.arange(0, 10, dtype=np.uint8)),
+            np.random.randint(0, 2, size = 8 * 5), np.unpackbits(pattern),
+            np.random.randint(0, 2, size = 64)
+        ]))
+
+        src = blocks.vector_source_b(testdata)
+        op = xor_frame_sync(pattern, 2048)
+        dst = blocks.vector_sink_b()
+
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+
+        self.assertEqual(op.synchronized, True)
+
+    # FIXME: implement feature
+    # def test_002(self):
+    #     """Test a byte unaligned delay"""
+    #     pattern = np.array([0xbe, 0xef], dtype=np.uint8)
+    #     testdata = np.packbits(np.concatenate([
+    #         np.unpackbits(np.arange(0, 10, dtype=np.uint8)),
+    #         np.random.randint(0, 2, size = (2 + 8 * 5)), np.unpackbits(pattern),
+    #         np.random.randint(0, 2, size = 64)
+    #     ]))
+
+    #     src = blocks.vector_source_b(testdata)
+    #     op = xor_frame_sync(pattern, 2048)
+    #     dst = blocks.vector_sink_b()
+
+    #     self.tb.connect(src, op, dst)
+    #     self.tb.run()
+
+    #     self.assertEqual(op.synchronized, True)
+
+
+if __name__ == "__main__":
+    gr_unittest.run(test_xor_frame_sync)