hal.dox
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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT 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/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/**
* @defgroup HAL HAL Driver
* @brief Hardware Abstraction Layer.
* @details The HAL (Hardware Abstraction Layer) driver performs the system
* initialization and includes the platform support code shared by
* the other drivers. This driver does contain any API function
* except for a general initialization function @p halInit() that
* must be invoked before any HAL service can be used, usually the
* HAL initialization should be performed immediately before the
* kernel initialization.<br>
* Some HAL driver implementations also offer a custom early clock
* setup function that can be invoked before the C runtime
* initialization in order to accelerate the startup time.
*
* @ingroup IO
*/