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stopwatch.h
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/*
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* @brief Common stopwatch support
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2013
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __STOPWATCH_H_
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#define __STOPWATCH_H_
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#include "
cmsis.h
"
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void
StopWatch_Init
(
void
);
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uint32_t
StopWatch_Start
(
void
);
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STATIC
INLINE
uint32_t
StopWatch_Elapsed
(uint32_t startTime)
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{
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return
StopWatch_Start
() - startTime;
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}
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uint32_t
StopWatch_TicksPerSecond
(
void
);
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uint32_t
StopWatch_TicksToMs
(uint32_t ticks);
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uint32_t
StopWatch_TicksToUs
(uint32_t ticks);
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uint32_t
StopWatch_MsToTicks
(uint32_t mS);
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uint32_t
StopWatch_UsToTicks
(uint32_t uS);
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STATIC
INLINE
void
StopWatch_DelayTicks
(uint32_t ticks)
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{
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uint32_t startTime =
StopWatch_Start
();
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while
(
StopWatch_Elapsed
(startTime) < ticks) {}
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}
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STATIC
INLINE
void
StopWatch_DelayMs
(uint32_t mS)
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{
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uint32_t ticks =
StopWatch_MsToTicks
(mS);
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uint32_t startTime =
StopWatch_Start
();
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while
(
StopWatch_Elapsed
(startTime) < ticks) {}
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}
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STATIC
INLINE
void
StopWatch_DelayUs
(uint32_t uS)
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{
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uint32_t ticks =
StopWatch_UsToTicks
(uS);
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uint32_t startTime =
StopWatch_Start
();
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while
(
StopWatch_Elapsed
(startTime) < ticks) {}
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}
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#endif
/* __STOPWATCH_H_ */
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