Index: firmware/FTM/ftm_definitions.vhd
===================================================================
--- firmware/FTM/ftm_definitions.vhd	(revision 10227)
+++ firmware/FTM/ftm_definitions.vhd	(revision 10228)
@@ -295,4 +295,12 @@
     X"0000"
   );
+
+
+
+
+  -- Light pulser interface
+  constant low_PLC : integer := 16;     -- minimal pulse duration in units of 4
+                                        -- ns
+
   
 end ftm_constants;