Arduino functions millis, micros and eventually some more to come

Dependents:   DigitalCamera_OV5642_WIZwiki-W7500 BMC F746NG_TestAll Prelude_OV5642_dev

Arduino basic compatibility millis(), micros(), evtl. more to come.

micros() and millis() are uint32_t and have a correct overflow at 2^32-1. micros() has a granularity/resolution of 50. This can be changed by a define. 1 microsecond is not realistic because every count needs an irq. A resolution of 50 microseconds means 20KHz irq. That should not take away more than 1 percent overall processing time.

Revision:
0:571ea8a1bbae
Child:
1:d1b960698e70
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/millis.h	Mon Nov 24 17:02:21 2014 +0000
@@ -0,0 +1,15 @@
+// millis as in Arduino...
+
+#ifndef MILLIS_H_
+#define MILLIS_H_
+
+#include "mbed.h"
+
+// Get millis value similar to arduino
+uint32_t millis ();
+
+// Must be called to start milli seconds timer!
+void StartMillis ();
+
+#endif  // See #ifndef MILLIS_H_
+// End of file
\ No newline at end of file