Add new manual pages detailing the advantages of LUFA over the official Atmel USB AVR stack, and reasons why LUFA should be used over a built-from-scratch USB stack.pull/1469/head
Dean Camera
15 years ago
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/** \file
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*
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* This file contains special DoxyGen information for the generation of the main page and other special
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* documentation pages. It is not a project source file.
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*/
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/**
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* \page Page_LUFAvsAtmelStack LUFA vs the Atmel Stack
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*
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* Atmel offers an official USB AVR stack, which may be incorporated into user projects and products. As LUFA and the Atmel
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* stack aims to give roughly the same functionality to a design, it is often asked what advantages LUFA carries over the
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* official Atmel USB stack. Below are just some of the advantages to choosing LUFA over the official stack.
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*
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* - <b>Licensing:</b>
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* LUFA is released under a very permissive MIT license (see \ref Page_Licence), while the Atmel stack carries several
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* restrictions as to how and where it can be used. LUFA's licensing should be suitable for both Commercial and Non-Commercial
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* entities alike.
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*
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* - <b>Demos and Projects:</b>
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* Unlike the Atmel stack, LUFA comes with many different Device and Host mode Demos and Projects ready to run out of the box.
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* Atmel favours separate downloads for each of their (small set) of USB AVR demos, which requires more time and offers less
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* to the end-user. LUFA also contains several open source Bootloaders, which can be modified as the user wishes to suit his or
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* her application, instead of being forced to use Atmel's single prebuilt (closed-source) DFU bootloader.
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*
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* - <b>Central Library Code:</b>
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* LUFA is designed to allow the central library core code to be shared amongst several projects, so long as the compiled object
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* files are cleaned between different projects. This is in direct contrast to the Atmel library, which is strongly coupled to the
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* project it is integrated with. Using LUFA allows for only one copy of the library core to be needed for all applications, and
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* makes updating the library used in all projects a trivial copy-and-paste process.
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*
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* - <b>Clean API:</b>
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* One of the main design goals of LUFA is to make the API easy to use. While LUFA is a fluid project which has undergone many
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* API improvements, the API is arguably much nicer to use and easier to understand than the equivelent Atmel stack code. LUFA's
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* API is also more complete than the Atmel stack, and contains many features to speed up application development.
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*
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* - <b>Full Hardware Support:</b>
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* LUFA supports the full range of Atmel's USB AVR microcontrollers (see \ref Page_DeviceSupport), with porting between chips being
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* as simple as a single compile switch in many cases. Atmel's stack requires different libraries to be used based on the USB AVR
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* microcontroller series, complicating the process of moving between USB AVR models. In addition, LUFA contains drivers for all the
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* hardware contained on Atmel's USB AVR based boards, so you can get started quickly and easily.
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*
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* - <b>Better Library Support:</b>
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* As many people are now using LUFA, there is a community being built around it. You can get answers to your LUFA related questions
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* quickly by either emailing the library author (subject to author's schedule) or by posting to the official LUFA support mailing list.
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*/
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/** \file
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*
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* This file contains special DoxyGen information for the generation of the main page and other special
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* documentation pages. It is not a project source file.
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*/
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/**
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* \page Page_WhyUseLUFA Why Use LUFA?
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*
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* The LUFA Library has many advantages over implementing the code required to drive the USB AVRs directly.
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* It is much more preferable to incorporate LUFA into your existing projects - or even make a new project
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* using LUFA - than it is to start from scratch and use the USB AVR registers directly. Some of these reasons
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* are:
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*
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* - <b>Portability:</b>
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* The LUFA stack is designed to run (at some capacity) on the entire Atmel range of USB AVRs, regardless of the
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* exact USB controller revision used. If you decide to implement your own USB stack, you will either need to
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* code around the differences between each USB AVR controller's implementation between different chip models, or
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* require your code to run on only one specific USB AVR model series.
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*
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* - <b>Speed of Development:</b>
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* LUFA ships with a wide range of pre-made demos, bootloaders and projects for you to try, learn and extend. Each
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* of these demos are tested (where possible) across as many USB AVRs and Operating Systems as possible, to ensure
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* that they work under as many conditions as possible. In addition, there are inbuilt class drivers for several of
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* the USB classes which you can make use of in your projects with minimal effort.
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*
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* - <b>Maintainability:</b>
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* As LUFA takes care of much of the USB implementation, you can be left to focusing on your actual project's
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* functionality, rather than being held back developing and debugging the USB stack code. Since LUFA uses clear APIs
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* for USB development, your code will be more readable than if it had the low level USB stack code integrated into
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* it directly. Updating the LUFA library is a simple folder-replacement and gives new features and bug fixes in
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* seconds each time a new release is made.
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*
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* - <b>Support:</b>
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* Since many people are now using LUFA in their own projects, you can take advantage of other's knowedge when you run
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* into difficulties or need some advice. In addition, you can also email the library author to recieve personalised
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* support when you need it (subject to author's schedule).
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*/
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