#ifndef __COMMON_H
#define __COMMON_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <at91sam7s512.h>
typedef unsigned char byte_t;
+// debug
+// 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode
+#define MF_DBG_NONE 0
+#define MF_DBG_ERROR 1
+#define MF_DBG_ALL 2
+#define MF_DBG_EXTENDED 4
+extern int MF_DBGLEVEL;
+
+// reader voltage field detector
+#define MF_MINFIELDV 4000
+
#ifndef MIN
# define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef ABS
# define ABS(a) ( ((a)<0) ? -(a) : (a) )
#endif
-
#define RAMFUNC __attribute((long_call, section(".ramfunc")))
-#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file