--- /dev/null
+#ifndef __CLOCK_ARCH_H__\r
+#define __CLOCK_ARCH_H__\r
+\r
+#include "global-conf.h"\r
+#include <stdint.h>\r
+\r
+typedef uint16_t clock_time_t;\r
+#define CLOCK_CONF_SECOND (F_CPU / 1024 / 255) //Freqency divided prescaler and counter register size\r
+void clock_init(void);\r
+clock_time_t clock_time(void);\r
+\r
+#endif /* __CLOCK_ARCH_H__ */\r