Add FalconX compatibility to get_raw_buffer

handel/interface.py

@@ -229,7 +229,16 @@ def get_raw_buffer(master, buffer_id):
     data = ffi.cast('uint32_t *', array.ctypes.data)
     code = handel.xiaGetRunData(master, command, data)
     check_error(code)
-    return array[::2]
+    # Check magic number
+    if array[0] == 0:
+        raise RuntimeError(
+            "The buffer {} associated with channel {} is empty"
+            .format(str(buffer_id), master))
+    # XMAP/Mercury
+    if array[1] == 0:
+        return array[::2]
+    # FalconX
+    return array
 
 
 def get_buffer_data(master, buffer_id):