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65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* System.h
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*
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* Created on: 10.02.2013
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* Author: skuser
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*/
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#ifndef SYSTEM_H
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#define SYSTEM_H
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include <avr/interrupt.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include "Common.h"
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#define F_RTC 1000
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#define SYSTEM_MILLISECONDS_TO_RTC_CYCLES(x) \
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( (uint16_t) ( (double) F_RTC * x / 1E3 + 0.5) )
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#define SYSTEM_TICK_WIDTH 7 /* Bits */
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#define SYSTEM_TICK_PERIOD (1<<7)
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#define SYSTEM_TICK_MS (SYSTEM_TICK_PERIOD)
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#define SYSTEM_TICK_FREQ (1000 / SYSTEM_TICK_PERIOD)
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#define SYSTEM_SMODE_PSAVE SLEEP_SMODE_PSAVE_gc
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#define SYSTEM_SMODE_IDLE SLEEP_SMODE_IDLE_gc
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/* Use GPIORE and GPIORF as global tick register */
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#define SYSTEM_TICK_REGISTER (*((volatile uint16_t*) &GPIORE))
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void SystemInit(void);
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void SystemReset(void);
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void SystemEnterBootloader(void);
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void SystemStartUSBClock(void);
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void SystemStopUSBClock(void);
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void SystemInterruptInit(void);
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INLINE bool SystemTick100ms(void);
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INLINE bool SystemTick100ms(void) {
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if (RTC.INTFLAGS & RTC_COMPIF_bm) {
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while (RTC.STATUS & RTC_SYNCBUSY_bm)
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;
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RTC.INTFLAGS = RTC_COMPIF_bm;
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return true;
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}
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return false;
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}
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INLINE void SystemTickClearFlag(void) {
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while (RTC.STATUS & RTC_SYNCBUSY_bm)
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;
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RTC.INTFLAGS = RTC_COMPIF_bm;
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}
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INLINE uint16_t SystemGetSysTick(void) {
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return SYSTEM_TICK_REGISTER | RTC.CNT;
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}
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#endif /* SYSTEM_H */
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