calc crc32 of char

Revision:
0:3a05b83a9a9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crc.h	Thu Dec 20 13:35:00 2012 +0000
@@ -0,0 +1,3 @@
+#include "mbed.h"
+
+unsigned int crc32(char *p, int len);
\ No newline at end of file