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/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <stdio.h>
#include <bsp.h>
#include "../led.h"
volatile int led_do_print;
volatile int led_value;
rtems_id Timer1;
rtems_id Timer2;
void LED_Change_Routine( void ) {
int _led_do_print;
int _led_value;
/* technically the following 4 statements are a critical section */
_led_do_print = led_do_print;
_led_value = led_value;
led_do_print = 0;
led_value = 0;
if ( _led_do_print ) {
if ( _led_value == 1 )
LED_OFF();
else
LED_ON();
}
}
rtems_timer_service_routine Timer_Routine( rtems_id id, void *ignored )
{
rtems_status_code status;
if ( id == Timer1 )
led_value = 1;
else
led_value = 2;
led_do_print = 1;
status = rtems_timer_fire_after(
id,
2 * rtems_clock_get_ticks_per_second(),
Timer_Routine,
NULL
);
}
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
puts( "\n\n*** LED BLINKER -- timer ***" );
LED_INIT();
status = rtems_timer_create(rtems_build_name( 'T', 'M', 'R', '1' ), &Timer1);
if ( status != RTEMS_SUCCESSFUL )
fputs( "Timer1 create failed\n", stderr );
status = rtems_timer_create(rtems_build_name( 'T', 'M', 'R', '2' ), &Timer2);
if ( status != RTEMS_SUCCESSFUL )
fputs( "Timer2 create failed\n", stderr );
Timer_Routine(Timer1, NULL);
LED_Change_Routine();
status = rtems_task_wake_after( rtems_clock_get_ticks_per_second() );
Timer_Routine(Timer2, NULL);
LED_Change_Routine();
while (1) {
status = rtems_task_wake_after( 10 );
LED_Change_Routine();
}
status = rtems_task_delete( RTEMS_SELF );
}
/**************** START OF CONFIGURATION INFORMATION ****************/
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_MAXIMUM_TIMERS 2
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_EXTRA_TASK_STACKS (3 * RTEMS_MINIMUM_STACK_SIZE)
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/**************** END OF CONFIGURATION INFORMATION ****************/
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