diff --git a/pyren/mod_term.py b/pyren/mod_term.py
index 71258f7..73162d2 100755
--- a/pyren/mod_term.py
+++ b/pyren/mod_term.py
@@ -468,14 +468,20 @@ def bit_cmd( l, elm, fnc='set_bits' ):
 
     if len(rsp) != lng * 2:
         print '\nERROR: Length is unexpected\n'
+        if fnc.startswith('exit'):
+            sys.exit()
         return
 
     if not all(c in string.hexdigits for c in rsp):
+        if fnc.startswith('exit'):
+            sys.exit()
         print '\nERROR: Wrong simbol in response\n'
         return
 
     pos_rsp = ('6'+rcmd[1:]).upper()
     if not rsp.startswith(pos_rsp):
+        if fnc.startswith('exit'):
+            sys.exit()
         print '\nERROR: Not positive response\n'
         return
 
@@ -640,6 +646,9 @@ def main():
     cmd_lines = []
     cmd_ref = 0
 
+    #debug
+    #auto_dia = True
+
     if auto_dia:
         fname = FileChooser().choose()
         #debug