diff --git a/bacnet-stack/ports/at91sam7s/isr.h b/bacnet-stack/ports/at91sam7s/isr.h
index 0acde815..882a3a22 100644
--- a/bacnet-stack/ports/at91sam7s/isr.h
+++ b/bacnet-stack/ports/at91sam7s/isr.h
@@ -1,56 +1,56 @@
-/**************************************************************************
-*
-* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
-*
-* Permission is hereby granted, free of charge, to any person obtaining
-* a copy of this software and associated documentation files (the
-* "Software"), to deal in the Software without restriction, including
-* without limitation the rights to use, copy, modify, merge, publish,
-* distribute, sublicense, and/or sell copies of the Software, and to
-* permit persons to whom the Software is furnished to do so, subject to
-* the following conditions:
-*
-* The above copyright notice and this permission notice shall be included
-* in all copies or substantial portions of the Software.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*
-*********************************************************************/
-
-#ifndef ISR_H
-#define ISR_H
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-unsigned disableIRQ(
-    void);
-
-unsigned restoreIRQ(
-    unsigned oldCPSR);
-
-unsigned enableIRQ(
-    void);
-
-unsigned disableFIQ(
-    void);
-
-unsigned restoreFIQ(
-    unsigned oldCPSR);
-
-unsigned enableFIQ(
-    void);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-#endif
+/**************************************************************************
+*
+* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*
+*********************************************************************/
+
+#ifndef ISR_H
+#define ISR_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+unsigned disableIRQ(
+    void);
+
+unsigned restoreIRQ(
+    unsigned oldCPSR);
+
+unsigned enableIRQ(
+    void);
+
+unsigned disableFIQ(
+    void);
+
+unsigned restoreFIQ(
+    unsigned oldCPSR);
+
+unsigned enableFIQ(
+    void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif