mirror of
https://github.com/RfidResearchGroup/ChameleonMini.git
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102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/* Copyright 2013 Timo Kasper, Simon Küppers, David Oswald ("ORIGINAL
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* AUTHORS"). All rights reserved.
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*
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* DEFINITIONS:
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*
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* "WORK": The material covered by this license includes the schematic
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* diagrams, designs, circuit or circuit board layouts, mechanical
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* drawings, documentation (in electronic or printed form), source code,
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* binary software, data files, assembled devices, and any additional
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* material provided by the ORIGINAL AUTHORS in the ChameleonMini project
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* (https://github.com/skuep/ChameleonMini).
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*
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* LICENSE TERMS:
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*
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* Redistributions and use of this WORK, with or without modification, or
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* of substantial portions of this WORK are permitted provided that the
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* following conditions are met:
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*
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* Redistributions and use of this WORK, with or without modification, or
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* of substantial portions of this WORK must include the above copyright
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* notice, this list of conditions, the below disclaimer, and the following
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* attribution:
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*
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* "Based on ChameleonMini an open-source RFID emulator:
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* https://github.com/skuep/ChameleonMini"
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*
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* The attribution must be clearly visible to a user, for example, by being
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* printed on the circuit board and an enclosure, and by being displayed by
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* software (both in binary and source code form).
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*
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* At any time, the majority of the ORIGINAL AUTHORS may decide to give
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* written permission to an entity to use or redistribute the WORK (with or
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* without modification) WITHOUT having to include the above copyright
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* notice, this list of conditions, the below disclaimer, and the above
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* attribution.
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*
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* DISCLAIMER:
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*
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* THIS PRODUCT IS PROVIDED BY THE ORIGINAL AUTHORS "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE ORIGINAL AUTHORS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the hardware, software, and
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* documentation should not be interpreted as representing official
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* policies, either expressed or implied, of the ORIGINAL AUTHORS.
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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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typedef uint16_t SystemRTCType;
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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_FREQ 10
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#define SYSTEM_TICK_MS (1000/SYSTEM_TICK_FREQ)
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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 SystemRTCType SystemGetRTC(void);
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INLINE SystemRTCType SystemGetRTC(void)
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{
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return RTC.CNT;
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}
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INLINE bool SystemTick100ms(void)
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{
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if (TCE0.INTFLAGS & TC0_OVFIF_bm) {
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TCE0.INTFLAGS = TC0_OVFIF_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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#endif /* SYSTEM_H */
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