sys_time_arch.h File Reference

LPC21xx timing functions. More...

#include "mcu_periph/sys_time.h"
#include <BOARD_CONFIG>
#include "LPC21xx.h"
#include "armVIC.h"
#include "std.h"

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Macros
#define	TIMER0_VIC_SLOT   1
#define	SysTickTimerStart(_t)   { _t = T0TC; }
#define	SysTickTimer(_t)   ((uint32_t)(T0TC - _t))
#define	SysTickTimerStop(_t)   { _t = (T0TC - _t); }

Functions
void	TIMER0_ISR (void)
static uint32_t	get_sys_time_usec (void)
	Get the time in microseconds since startup. More...
static uint32_t	get_sys_time_msec (void)
	Get the time in milliseconds since startup. More...
static void	sys_time_usleep (uint32_t us)
	Busy wait, in microseconds. More...

Detailed Description

LPC21xx timing functions.

Definition in file sys_time_arch.h.

Macro Definition Documentation

#define SysTickTimer

(

_t

)

((uint32_t)(T0TC - _t))

Definition at line 83 of file sys_time_arch.h.

#define SysTickTimerStart

(

_t

)

{ _t = T0TC; }

Definition at line 82 of file sys_time_arch.h.

#define SysTickTimerStop

(

_t

)

{ _t = (T0TC - _t); }

Definition at line 84 of file sys_time_arch.h.

#define TIMER0_VIC_SLOT   1

Definition at line 59 of file sys_time_arch.h.

Referenced by sys_time_arch_init().

Function Documentation

static uint32_t get_sys_time_msec ( void  )

inlinestatic

Get the time in milliseconds since startup.

Returns

milliseconds since startup as uint32_t

Definition at line 76 of file sys_time_arch.h.

References msec_of_cpu_ticks(), and T0TC.

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static uint32_t get_sys_time_usec ( void  )

inlinestatic

Get the time in microseconds since startup.

WARNING: overflows after ??

Returns

microseconds since startup as uint32_t

Definition at line 67 of file sys_time_arch.h.

References T0TC, and usec_of_cpu_ticks().

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static void sys_time_usleep ( uint32_t  us )

inlinestatic

Busy wait, in microseconds.

Definition at line 87 of file sys_time_arch.h.

References cpu_ticks_of_usec(), T0TC, and ticks.

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void TIMER0_ISR

(

void

)

Definition at line 179 of file sys_time_arch.c.

References ACTUATORS_IT, AMI601_ISR, AMI601_IT, ISR_ENTRY, ISR_EXIT, LED_TOGGLE, MB_SCALE_IT, MB_TACHO_IT, PPM_ISR, PPM_IT, PWM_INPUT_IT1, PWM_INPUT_IT2, Servos4015Mat_ISR, SERVOS_4017_ISR, ServosPPMMat_ISR, sys_tick_irq_handler(), SYS_TICK_IT, T0IR, TIMER0_IT_MASK, TRIG_ISR(), TRIGGER_IT, and VICVectAddr.

Referenced by sys_time_arch_init().

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