background_tasks.c File Reference

Background task scheduler. More...

#include "background_tasks.h"
#include <avr/io.h>

Include dependency graph for background_tasks.c:

Functions
void	process_background_tasks (void)
	Invokes registered background tasks if certain conditions are met. More...
void	init_background_tasks (background_task_t *const high_freq_tasks, uint8_t high_freq_tasks_size, background_task_t *const mid_freq_tasks, uint8_t mid_freq_tasks_size, background_task_t *const low_freq_tasks, uint8_t low_freq_tasks_size)

Variables
static background_task_t *	high_frequency_tasks
static uint8_t	high_frequency_tasks_size
static background_task_t *	mid_frequency_tasks
static uint8_t	mid_frequency_tasks_size
static background_task_t *	low_frequency_tasks
static uint8_t	low_frequency_tasks_size

Detailed Description

Background task scheduler.

Function Documentation

init_background_tasks()

void init_background_tasks	(	background_task_t *const	high_freq_tasks,
		uint8_t	high_freq_tasks_size,
		background_task_t *const	mid_freq_tasks,
		uint8_t	mid_freq_tasks_size,
		background_task_t *const	low_freq_tasks,
		uint8_t	low_freq_tasks_size
	)

process_background_tasks()

void process_background_tasks

(

void

)

Invokes registered background tasks if certain conditions are met.

This procedure must be called in the main loop of the program. If the CPU timer interrupt flag of CPU timer 0 is active, it is reset and the prescaler counters are incremented. If one of the prescalers reaches its target value, it is reset as well and the corresponding tasks are executed one by one.

See also

F_TASK_FAST

F_TASK_MID

F_TASK_SLOW

Variable Documentation

high_frequency_tasks

background_task_t* high_frequency_tasks

static

Parameters

Internal

array of function pointers to high frequency tasks

high_frequency_tasks_size

uint8_t high_frequency_tasks_size

static

Parameters

Number

of high frequency tasks

low_frequency_tasks

background_task_t* low_frequency_tasks

static

Parameters

Internal

array of function pointers to low frequency tasks

low_frequency_tasks_size

uint8_t low_frequency_tasks_size

static

Parameters

Number

of low frequency tasks

mid_frequency_tasks

background_task_t* mid_frequency_tasks

static

Parameters

Internal

array of function pointers to medium frequency tasks

mid_frequency_tasks_size

uint8_t mid_frequency_tasks_size

static

Parameters

Number

of medium frequency tasks