37 lines
1.6 KiB
Plaintext
37 lines
1.6 KiB
Plaintext
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @addtogroup GTIMER
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* @details The GTIMER module provides high level, simple and hardware
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* independend timers. The timers are meant to be used in different
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* ChibiOS/GFX modules and are not very accurate.
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*
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* @details The reason why ChibiOS/GFX has it's own timer abstraction is because
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* virtual timers provided by ChibiOS/RT are interrupt context only.
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* While great for what they are designed for, they make coding of the input
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* drivers much more complex.
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* For non-performance critical drivers like these input drivers, it would also
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* hog an in-ordinate amount of critical (interrupt locked) system time.
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* This contrary to the goals of a real-time operating system. So a user-land
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* (thread based) timer mechanism is also required.
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*/
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