CANfestival - an open source CANopen framework

Dependencies:   mbed

Revision:
0:6219434a0cb5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/framework/include/sysdep.h	Mon May 30 07:14:41 2011 +0000
@@ -0,0 +1,27 @@
+#ifndef __sysdep_h__
+#define __sysdep_h__
+
+#include "config.h"
+
+#ifdef CANOPEN_BIG_ENDIAN
+
+/* Warning: the argument must not update pointers, e.g. *p++ */
+
+#define UNS16_LE(v)  ((((UNS16)(v) & 0xff00) >> 8) | \
+		      (((UNS16)(v) & 0x00ff) << 8))
+
+#define UNS32_LE(v)  ((((UNS32)(v) & 0xff000000) >> 24) |	\
+		      (((UNS32)(v) & 0x00ff0000) >> 8)  |	\
+		      (((UNS32)(v) & 0x0000ff00) << 8)  |	\
+		      (((UNS32)(v) & 0x000000ff) << 24))
+
+#else
+
+#define UNS16_LE(v)  (v)
+
+#define UNS32_LE(v)  (v)
+
+#endif
+
+#endif /* __sysdep_h__ */
+