gr-serial block

3 files changed, 153 insertions, 0 deletions

diff --git a/gr-serial/python/CMakeLists.txt b/gr-serial/python/CMakeLists.txt
new file mode 100644
index 000000000..e0f33d9b1
--- /dev/null
+++ b/gr-serial/python/CMakeLists.txt
@@ -0,0 +1,55 @@
+# Copyright 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.
+
+########################################################################
+include(GrPython)
+
+GR_PYTHON_INSTALL(
+    FILES
+    __init__.py
+    DESTINATION ${GR_PYTHON_DIR}/gnuradio/serial
+    COMPONENT "serial_python"
+)
+
+GR_PYTHON_INSTALL(
+    FILES
+    gr_serial.py
+    DESTINATION ${GR_PYTHON_DIR}/gnuradio/serial
+    COMPONENT "serial_python"
+)
+
+
+
+########################################################################
+# Handle the unit tests
+########################################################################
+if(ENABLE_TESTING)
+
+list(APPEND GR_TEST_PYTHON_DIRS
+    ${CMAKE_BINARY_DIR}/gr-serial/python
+)
+list(APPEND GR_TEST_TARGET_DEPS gnuradio-serial)
+
+include(GrTest)
+file(GLOB py_qa_test_files "qa_*.py")
+foreach(py_qa_test_file ${py_qa_test_files})
+    get_filename_component(py_qa_test_name ${py_qa_test_file} NAME_WE)
+    GR_ADD_TEST(${py_qa_test_name} ${PYTHON_EXECUTABLE} ${PYTHON_DASH_B} ${py_qa_test_file})
+endforeach(py_qa_test_file)
+endif(ENABLE_TESTING)
diff --git a/gr-serial/python/__init__.py b/gr-serial/python/__init__.py
new file mode 100644
index 000000000..6e8ef1f55
--- /dev/null
+++ b/gr-serial/python/__init__.py
@@ -0,0 +1,53 @@
+#
+# Copyright 2008,2009 Free Software Foundation, Inc.
+#
+# This application 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.
+#
+# This application 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 this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+# The presence of this file turns this directory into a Python package
+
+'''
+This is the GNU Radio SCIGEN module. Place your Python package
+description here (python/__init__.py).
+'''
+
+# ----------------------------------------------------------------
+# Temporary workaround for ticket:181 (swig+python problem)
+import sys
+_RTLD_GLOBAL = 0
+try:
+    from dl import RTLD_GLOBAL as _RTLD_GLOBAL
+except ImportError:
+    try:
+	from DLFCN import RTLD_GLOBAL as _RTLD_GLOBAL
+    except ImportError:
+	pass
+
+if _RTLD_GLOBAL != 0:
+    _dlopenflags = sys.getdlopenflags()
+    sys.setdlopenflags(_dlopenflags|_RTLD_GLOBAL)
+# ----------------------------------------------------------------
+
+
+# import any pure python here
+import serial
+
+#
+
+# ----------------------------------------------------------------
+# Tail of workaround
+if _RTLD_GLOBAL != 0:
+    sys.setdlopenflags(_dlopenflags)      # Restore original flags
+# ----------------------------------------------------------------
diff --git a/gr-serial/python/gr_serial.py b/gr-serial/python/gr_serial.py
new file mode 100644
index 000000000..00b70c0d8
--- /dev/null
+++ b/gr-serial/python/gr_serial.py
@@ -0,0 +1,45 @@
+#!/usr/bin/python
+
+import gras
+import numpy
+# Serial is imported in __init__
+class ser(gras.Block):
+	
+
+        def __init__(self):
+                gras.Block.__init__(self,
+                        name="ser",
+                        in_sig=[numpy.float32],
+                        out_sig=[numpy.float32])
+		self.n = 1
+        def set_parameters(self, port, baud, bytesize, parity, stopbits):
+		
+		try:
+			print port
+			self.ser_obj = serial.Serial(port, baud,  bytesize, parity,  stopbits)
+			print("serial found on " + port )
+			self.ser_obj.open()
+		except:
+			print "Couldn't Open Serial Port " + port + " Failed"
+	
+
+        def work(self, input_items, output_items):
+		
+		self.n = input_items[0][0]
+                out = output_items[0][:self.n]
+		# Input is size of output_items to be returned
+
+		for i in range(self.n):
+			
+			# Try catch block to avoid Error
+			# ValueError: invalid literal for int() with base 10: '\xfe354\r\n'
+			try:
+				out[i] = int(self.ser_obj.readline())
+			except:
+				pass
+		
+		print "OUT", out[:self.n]
+			
+		self.produce(0,len(out)) # Produce from port 0 output_items
+		self.consume(0,1) # Consume from port 0 input_items
+