--- src/lib/avr.py	2012-09-14 11:26:42.000000000 +0200
+++ src/lib/avr.py	2012-08-30 15:55:14.000000000 +0200
@@ -1,7 +1,14 @@
 # This file is Copyright 2007 Dean Hall.
-# This file is part of the Python-on-a-Chip libraries.
-# This software is licensed under the MIT License.
-# See the LICENSE file for details.
+#
+# This file is part of the Python-on-a-Chip program.
+# Python-on-a-Chip is free software: you can redistribute it and/or modify
+# it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1.
+#
+# Python-on-a-Chip is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# A copy of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1
+# is seen in the file COPYING in this directory.
 
 ## @file
 #  @copybrief avr
@@ -34,6 +41,11 @@
 """__NATIVE__
 #include <avr/io.h>
 #include <util/delay.h>
+void delay_MS(unsigned int n){
+  while(n--){
+    _delay_ms(1);
+  }
+}
 
 /*
  * Common method for all port register operations
@@ -233,11 +245,11 @@
 #     """
 #     pass
 
-# def portC(a):
-#     """__NATIVE__
-#     return _portX(&PORTC, &DDRC, &PINC);
-#     """
-#     pass
+def portC(a):
+    """__NATIVE__
+    return _portX(&PORTC, &DDRC, &PINC);
+    """
+    pass
 
 # def portD(a):
 #     """__NATIVE__
@@ -269,11 +281,11 @@
 #     """
 #     pass
 
-# def ddrC(a):
-#     """__NATIVE__
-#     return _ddrX(&DDRC);
-#     """
-#     pass
+def ddrC(a):
+    """__NATIVE__
+    return _ddrX(&DDRC);
+    """
+    pass
 
 
 # def ddrD(a):
@@ -385,11 +397,11 @@
     pPmObj_t pa = NATIVE_GET_LOCAL(0);
     if (OBJ_GET_TYPE(pa) == OBJ_TYPE_INT)
     {
-      _delay_ms((double) ((pPmInt_t)pa)->val);
+      delay_MS((double) ((pPmInt_t)pa)->val);
     }
     else if (OBJ_GET_TYPE(pa) == OBJ_TYPE_FLT)
     {
-      _delay_ms((double) ((pPmFloat_t)pa)->val);
+      delay_MS((double) ((pPmFloat_t)pa)->val);
     }
     else
     {