blinky.c

lpc3250 example program

/*----------------------------------------------------------------------------
 *      R T L   K e r n e l   E x a m p l e
 *----------------------------------------------------------------------------
 *      Name:    BLINKY.C
 *      Purpose: RTX example program
 *      Rev.:    V3.22
 *----------------------------------------------------------------------------
 *      This code is part of the RealView Run-Time Library.
 *      Copyright (c) 2004-2008 KEIL - An ARM Company. All rights reserved.
 *---------------------------------------------------------------------------*/

#include <RTL.h>
#include <LPC325x.h>                    /* LPC325x definitions               */

OS_TID t_phaseA;                        /* assigned task id of task: phase_a */
OS_TID t_phaseB;                        /* assigned task id of task: phase_b */

#define LED_1   0x0002
#define LED_2   0x4000
#define LED_ALL 0x4002

#define LED_ON(led)  P3_OUTP_SET = led;
#define LED_OFF(led) P3_OUTP_CLR = led;

/*----------------------------------------------------------------------------
 *        Task 1 'phaseA': Phase A output
 *---------------------------------------------------------------------------*/
__task void phaseA (void) {
  for (;;) {
    os_evt_wait_and (0x0001, 0xffff);    /* wait for an event flag 0x0001    */
    LED_ON (LED_1);
    os_dly_wait (30);
    LED_OFF(LED_1);
    os_dly_wait (70);
    os_evt_set (0x0001, t_phaseB);       /* send signal event to task phaseB */
  }
}

/*----------------------------------------------------------------------------
 *        Task 2 'phaseB': Phase B output
 *---------------------------------------------------------------------------*/
__task void phaseB (void) {
  for (;;) {
    os_evt_wait_and (0x0001, 0xffff);    /* wait for an event flag 0x0001    */
    LED_ON (LED_2);
    os_dly_wait (30);
    LED_OFF(LED_2);
    os_dly_wait (70);
    os_evt_set (0x0001, t_phaseA);       /* send signal event to task phaseA */
  }
}

/*----------------------------------------------------------------------------
 *        Task 5 'init': Initialize
 *---------------------------------------------------------------------------*/
__task void init (void) {

  LED_OFF (LED_ALL);

  t_phaseA = os_tsk_create (phaseA, 0);  /* start task phaseA                */
  t_phaseB = os_tsk_create (phaseB, 0);  /* start task phaseB                */
  os_evt_set (0x0001, t_phaseA);         /* send signal event to task phaseA */
  os_tsk_delete_self ();
}

/*----------------------------------------------------------------------------
 *        Main: Initialize and start RTX Kernel
 *---------------------------------------------------------------------------*/

int main (void) {

  os_sys_init (init);                    /* Initialize RTX and start init    */
}

/*----------------------------------------------------------------------------
 * end of file
 *---------------------------------------------------------------------------*/