Detailed Description

Cortex V8M TimestampProvider.

The SysTick timer is used as the timestamp source.

Calling Context

Function	Hwi	Swi	Task	Main**	Startup***
get32	Y	Y	Y	Y	N
get64	Y	Y	Y	Y	N
getFreq	Y	Y	Y	Y	N

#include <xdc/std.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <ti/sysbios/runtime/Types.h>
#include <ti/sysbios/family/arm/v8m/Timer.h>
#include "TimestampProvider_defs.h"

Include dependency graph for TimestampProvider.h:

Go to the source code of this file.

Functions
uint32_t	TimestampProvider_get32 (void)
	Return a 32-bit timestamp. More...

void	TimestampProvider_get64 (Types_Timestamp64 *timestamp64)
	Return a 64-bit timestamp. More...

void	TimestampProvider_getFreq (Types_FreqHz *freq)
	Get the timestamp timer's frequency (in Hz) More...

Function Documentation

§ TimestampProvider_get32()

uint32_t TimestampProvider_get32 ( void )

Return a 32-bit timestamp.

Returns a 32-bit timestamp value. Use TimestampProvider_getFreq to convert this value into units of real time.

Return values

32-bit timestamp

§ TimestampProvider_get64()

void TimestampProvider_get64 ( Types_Timestamp64 * timestamp64 )

Return a 64-bit timestamp.

This parameter is a pointer to a structure representing a 64-bit wide timestamp value where the current timestamp is written.

If the underlying hardware does not support 64-bit resolution, the hi field of result is always set to 0 So, it is possible for the lo field to wrap around without any change to the hi field. Use TimestampProvider_getFreq to convert this value into units of real time.

Parameters

timestamp64 pointer to 64-bit result

§ TimestampProvider_getFreq()

void TimestampProvider_getFreq ( Types_FreqHz * freq )

Get the timestamp timer's frequency (in Hz)

This parameter is a pointer to a structure representing a 64-bit wide frequency value where the timer's frequency (in Hz) is written This function provides a way of converting timestamp values into units of real time.