sys_time.c File Reference

Architecture independent timing functions. More...

#include "mcu_periph/sys_time.h"
#include "mcu.h"
#include "limits.h"

Include dependency graph for sys_time.c:

Go to the source code of this file.

Functions
tid_t	sys_time_register_timer (float duration, sys_time_cb cb)
	Register a new system timer. More...
void	sys_time_cancel_timer (tid_t id)
	Cancel a system timer by id. More...
void	sys_time_update_timer (tid_t id, float duration)
	Update the duration until a timer elapses. More...
void	sys_time_init (void)

Variables
struct sys_time	sys_time

Detailed Description

Architecture independent timing functions.

Definition in file sys_time.c.

Function Documentation

void sys_time_cancel_timer

(

tid_t

id

)

Cancel a system timer by id.

Parameters

id

Timer id.

Definition at line 60 of file sys_time.c.

References sys_time_timer::cb, sys_time_timer::duration, sys_time_timer::elapsed, sys_time_timer::end_time, sys_time_timer::in_use, and sys_time::timer.

Referenced by mavlink_mission_cancel_timer(), and px4flash_event().

Here is the caller graph for this function:

void sys_time_init

(

void

)

Definition at line 78 of file sys_time.c.

References sys_time_timer::cb, sys_time_timer::duration, sys_time_timer::elapsed, sys_time_timer::end_time, sys_time_timer::in_use, sys_time::nb_sec, sys_time::nb_sec_rem, sys_time::nb_tick, sys_time::resolution, sys_time_arch_init(), SYS_TIME_FREQUENCY, SYS_TIME_NB_TIMER, sys_time::ticks_per_sec, and sys_time::timer.

Referenced by main(), and mcu_init().

Here is the call graph for this function:

Here is the caller graph for this function:

tid_t sys_time_register_timer	(	float	duration,
		sys_time_cb	cb
	)

Register a new system timer.

Parameters

duration	Duration in seconds until the timer elapses.
cb	Callback function that is called from the ISR when timer elapses, or NULL

Returns

-1 if it failed, the timer id otherwise

Definition at line 43 of file sys_time.c.

References sys_time_timer::cb, sys_time_timer::duration, sys_time_timer::elapsed, sys_time_timer::end_time, sys_time_timer::in_use, sys_time::nb_tick, start_time, SYS_TIME_NB_TIMER, sys_time_ticks_of_sec(), and sys_time::timer.

Referenced by init_ap(), init_fbw(), intermcu_init(), main(), main_init(), mavlink_mission_set_timer(), px4flash_event(), and px4flash_init().

Here is the call graph for this function:

Here is the caller graph for this function:

void sys_time_update_timer	(	tid_t	id,
		float	duration
	)

Update the duration until a timer elapses.

Parameters

id	Timer id
duration	Duration in seconds until the timer elapses.

Definition at line 70 of file sys_time.c.

References sys_time_timer::duration, sys_time_timer::end_time, mcu_int_disable, mcu_int_enable, sys_time_ticks_of_sec(), and sys_time::timer.

Referenced by mavlink_mission_set_timer().

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

struct sys_time sys_time

Definition at line 41 of file sys_time.c.