Index: firmware/App/BLCommon.h
===================================================================
diff -u -rabb9687e52d9db5df1abe7626ba04a6d431ba823 -r850f8042a02fd17ee53b8db24bc2e3d17bbb9c7f
--- firmware/App/BLCommon.h	(.../BLCommon.h)	(revision abb9687e52d9db5df1abe7626ba04a6d431ba823)
+++ firmware/App/BLCommon.h	(.../BLCommon.h)	(revision 850f8042a02fd17ee53b8db24bc2e3d17bbb9c7f)
@@ -12,12 +12,18 @@
 
 // ********** version **********
 
+/*
+ * TD = 0
+ * DD = 1
+ * RO = 2
+ */
+#define BL_STACK_ID         0  // TODO de we need to check the value to make sure it is range (e.g. it is not set to 20?)
+
 #define BL_VERSION_MAJOR    0
 #define BL_VERSION_MINOR    0
 #define BL_VERSION_MICRO    0
 #define BL_VERIOSN_BUILD    0
 
-
 // **** Types ****
 
 typedef float                    F32;               ///< 32-bit floating point type