usleep.c File Reference

#include "sleep.h"
#include "xtime_l.h"
#include "xparameters.h"
#include "xpseudo_asm.h"
#include "xreg_cortexa9.h"

Functions
void	nanosleep (unsigned int nanoseconds)
int	usleep (unsigned int useconds)

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Detailed Description

This function provides a microsecond delay using the Global Timer register in the ARM Cortex A9 MP core.

 MODIFICATION HISTORY:

 Ver   Who      Date     Changes
 ----- -------- -------- -----------------------------------------------
 1.00a ecm/sdm  11/11/09 First release
 3.07a sgd      07/05/12 Upadted micro sleep function to make use Global Timer
 

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Function Documentation

void nanosleep (  unsigned int  nanoseconds  )

This is not implemented . Parameters: nanoseconds  Returns: None Note: None.

int usleep (  unsigned int  useconds  )

This API gives a delay in microseconds Parameters: useconds  requested Returns: 0 if the delay can be achieved, -1 if the requested delay is out of range Note: None.

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