/*
    ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
              2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.

    This file is part of ChibiOS.

    ChibiOS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation version 3 of the License.

    ChibiOS is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * @mainpage Introduction
 * @author Giovanni Di Sirio (gdisirio@users.sourceforge.net).
 *
 * <h2>Why Nil?</h2>
 * Of course because it is so small that it is almost nil.
 * I wrote Nil because I wanted to experiment with an idea I had
 * regarding a minimal RTOS. Basically I wanted to verify how small
 * could be an RTOS while retaining useful features.
 *
 * <h2>Features</h2>
 * - Free software, GPL3 licensed. Stable releases include a exception clause
 *   to the GPL.
 * - Designed for realtime applications.
 * - Easily portable.
 * - Preemptive scheduling.
 * - Each thread has its own priority level.
 * - Offers tasks, time, semaphores, event flags, timeouts.
 * - Fully static.
 * - Minimal system requirements: about 700 bytes ROM with all options enabled.
 * - Almost totally written in C with little ASM code required for ports.
 * - Compatible with ChibiOS/HAL.
 * - API compatible with ChibiOS/RT of which, ChibiOS/NIL, is functionally
 *   a subset.
 * .
 */
