bsps/arm/lpc24xx/start/bspidle.c


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/**
 * @file
 *
 * @ingroup lpc24xx
 *
 * @brief Idle task.
 */

/*
 * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Obere Lagerstr. 30
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#include <bsp.h>
#include <bsp/lpc24xx.h>

void *bsp_idle_thread(uintptr_t ignored)
{
  while (true) {
    #ifdef ARM_MULTILIB_ARCH_V4
      /*
       * Set power mode to idle.  Causes the processor clock to be stopped,
       * while on-chip peripherals remain active.  Any enabled interrupt from a
       * peripheral or an external interrupt source will cause the processor to
       * resume execution.
       */
      PCON = 0x1;
    #endif
  }
}