Andrew Boyson / clock

Dependents:   oldheating gps motorhome heating

Revision:
35:ba9f575aa3c6
Parent:
33:b9e3c06e7dab
Child:
39:5b594b1b6a0a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/timer/timer.h	Sat Dec 01 15:43:59 2018 +0000
@@ -0,0 +1,15 @@
+#include <stdint.h>
+#include <stdbool.h>
+
+extern uint32_t TimerNowCount(void);
+extern uint32_t TimerIntervalCount(uint32_t* pLastCount);
+extern uint32_t TimerSinceCount(uint32_t startCount);
+extern uint32_t TimerSinceMs(uint32_t startCount);
+extern bool     TimerIntervalHasElapsed(uint32_t* pBaseCount, uint32_t intervalCount);
+
+extern int32_t  TimerMultiplyFractionalPart(int32_t value, uint32_t timerCountSinceStart, uint32_t interval);
+extern void     TimerInit(void);
+
+#define TIMER_COUNT_PER_SECOND 96000000UL
+#define TIMER_COUNT_PER_MS     (TIMER_COUNT_PER_SECOND / 1000);
+#define TIMER_COUNT_PER_US     (TIMER_COUNT_PER_MS     / 1000);