83 lines
3.6 KiB
Plaintext
83 lines
3.6 KiB
Plaintext
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT 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/RT 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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* @page target Application Range
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* @brief ChibiOS/RT Application Range.
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* - @ref applications
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* - @ref min_requirements
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* - @ref desirable_features
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* - @ref upper_limit
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* .
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* @section applications Application Scenarios
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* ChibiOS/RT is usable in many applicative areas, as example and not limited
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* to:
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* - Automotive.
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* - Robotic Applications.
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* - Consumer Electronics.
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* - Energy Management.
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* - Teaching and Learning.
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* - Hobby.
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* .
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* @section min_requirements Absolute Minimum Requirements
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* A certain set of minimum system requirements must be satisfied in order to
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* use ChibiOS/RT on a new architecture:
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* - 8bits architecture minimum.
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* - A "real" stack pointer that can be positioned anywhere in the data address
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* space. The OS could be ported to architectures with an hardware stack but
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* I wouldn't recommend it because the context switch would become
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* ridiculously inefficient.
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* - Support for maskable interrupt sources and at least an OS-dedicated timer.
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* - Support for standard C89 (C99 supported) language with no
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* architecture-related non-standard restrictions. Non standard mandatory
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* language extensions or restrictions may result in reduced functionality
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* or impossibility of use.
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* - 256/512bytes RAM permanently allocated to the kernel and its two mandatory
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* threads "idle" and "main", the exact amount depends on the architecture.
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* This figure is not inclusive of the HAL and device drivers (non mandatory
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* components).
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* - 8KiB of program space for a full featured kernel scalable down to about
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* 1.2KiB for reduced configurations. This figure is not inclusive of the
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* HAL and device drivers (non mandatory components).
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* .
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* @section desirable_features Desirable Features
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* - Efficient instruction set for linked lists traversal. The kernel makes
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* extensive use of simple and bidirectional linked lists so the performance
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* is directly affected by the suported addressing modes, number of registers
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* etc.
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* - Uniformly sized C pointers.
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* - 2KiB RAM.
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* - 16KiB ROM/Flash.
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* .
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* @section upper_limit Upper Recommended Limit
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* The application range of ChibiOS/RT ends when one or more of the following
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* features are required:
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* - Separation between user code space and kernel space, both just logical or
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* using a Memory Management/Protection Unit. Applications in ChibiOS/RT are
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* supposed to be monolithic and trusted. The kernel and the application
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* share the same address space.
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* - Multiple applications. ChibiOS/RT supports the single multithreaded
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* application model.
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* - Multicore SMP architectures. Currently ChibiOS/RT only supports a single
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* core unless running multiple distinct and separate OS instances.
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* A true multicore kernel is planned for when multicore MCUs will become
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* commonly available.
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* .
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*/
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