ARM9教程DSP教程FPGA教程CPLD教程12A软硬件设计0229(4)

ARM9教程DSP教程FPGA教程CPLD教程12A软硬件设计0229

/*****************************************************************************\ |*

|* COPYRIGHT: Copyright (c) 2004, PurPer |*

|* DESCRIPTION: Timing utility functions |*

\*****************************************************************************/

#ifndef __UTIL_TIMING_H__ #define __UTIL_TIMING_H__

void timing_set_clock_freq_hz ( unsigned int freq ); unsigned int timing_get_clock_freq_hz ( void );

unsigned long long timing_get_tick_count ( void ); unsigned int timing_get_tick_period_ns ( void );

unsigned int timing_elapsed_time_ns ( unsigned long long since_tick ); unsigned int timing_elapsed_time_us ( unsigned long long since_tick ); unsigned int timing_elapsed_time_ms ( unsigned long long since_tick );

unsigned long long timing_get_ticks_ns ( unsigned long long ns ); unsigned long long timing_get_ticks_us ( unsigned long long us ); unsigned long long timing_get_ticks_ms ( unsigned long long ms );

void timing_delay_ns ( unsigned long long ns ); void timing_delay_us ( unsigned long long us ); void timing_delay_ms ( unsigned long long ms ); #endif

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