<?xml version='1.0' encoding='ASCII'?><flow_graph><timestamp>Sat Nov 12 20:32:46 2011</timestamp><block><key>options</key><param><key>id</key><value>top_block</value></param><param><key>_enabled</key><value>True</value></param><param><key>title</key><value></value></param><param><key>author</key><value></value></param><param><key>description</key><value></value></param><param><key>window_size</key><value>1280, 1024</value></param><param><key>generate_options</key><value>wx_gui</value></param><param><key>category</key><value>Custom</value></param><param><key>run_options</key><value>prompt</value></param><param><key>run</key><value>True</value></param><param><key>realtime_scheduling</key><value></value></param><param><key>_coordinate</key><value>(10, 10)</value></param><param><key>_rotation</key><value>0</value></param></block><block><key>variable</key><param><key>id</key><value>samp_rate</value></param><param><key>_enabled</key><value>True</value></param><param><key>value</key><value>250000</value></param><param><key>_coordinate</key><value>(10, 170)</value></param><param><key>_rotation</key><value>0</value></param></block><block><key>gr_file_source</key><param><key>id</key><value>gr_file_source_0</value></param><param><key>_enabled</key><value>True</value></param><param><key>file</key><value>/dev/ttyUSB0</value></param><param><key>type</key><value>short</value></param><param><key>repeat</key><value>True</value></param><param><key>vlen</key><value>1</value></param><param><key>_coordinate</key><value>(72, 385)</value></param><param><key>_rotation</key><value>0</value></param></block><block><key>gr_short_to_float</key><param><key>id</key><value>gr_short_to_float_0</value></param><param><key>_enabled</key><value>True</value></param><param><key>_coordinate</key><value>(383, 350)</value></param><param><key>_rotation</key><value>0</value></param></block><block><key>wxgui_scopesink2</key><param><key>id</key><value>wxgui_scopesink2_0</value></param><param><key>_enabled</key><value>True</value></param><param><key>type</key><value>float</value></param><param><key>title</key><value>Scope Plot</value></param><param><key>samp_rate</key><value>samp_rate</value></param><param><key>v_scale</key><value>0</value></param><param><key>v_offset</key><value>0</value></param><param><key>t_scale</key><value>0</value></param><param><key>ac_couple</key><value>False</value></param><param><key>xy_mode</key><value>False</value></param><param><key>num_inputs</key><value>1</value></param><param><key>win_size</key><value></value></param><param><key>grid_pos</key><value></value></param><param><key>notebook</key><value></value></param><param><key>trig_mode</key><value>gr.gr_TRIG_MODE_AUTO</value></param><param><key>y_axis_label</key><value>Counts</value></param><param><key>_coordinate</key><value>(671, 292)</value></param><param><key>_rotation</key><value>0</value></param></block><connection><source_block_id>gr_file_source_0</source_block_id><sink_block_id>gr_short_to_float_0</sink_block_id><source_key>0</source_key><sink_key>0</sink_key></connection><connection><source_block_id>gr_short_to_float_0</source_block_id><sink_block_id>wxgui_scopesink2_0</sink_block_id><source_key>0</source_key><sink_key>0</sink_key></connection></flow_graph>