bertos: free embedded rtos

Real Time Embedded OS

Develer S.r.l.

 Why Open Source software

 Discover BeRTOS

 Advantages for Business

 BeRTOS in short

 License

 BeRTOS in use

 10 reasons to ...

 Questions?

Agenda

BeRTOS is a real-time systemdesigned to build applicationsfor embedded systems“

 Lock­in avoidance

 NO license costs

 Decrease maintenance costs

 Economical advantages

Why Open Source Software

Lock­in avoidance No technological lock-in with respect to proprietary systems

Many different companies can offer the same services on the market.The customer can change the source if the seller can't do or it's not interested in doing such modification.

No mandatory binding with the supplierYou can choose any supplier which satisfies your business demands.You can change business partner any time you want since the sources are shared.

Open systemAn internal “expert” team can make any change to the source.You can easily train human resources thanks to the shared documentation.

Quality and efficiencyThe developers commit themselves to code quality.Many developers improve the system thanks to free access to source code.It's often at the forefront of technology, it's well documented, stable and secure.

No license costs There are three main costs in a software project:

- license purchasing, - program installation and customization, - internal costs due to resource organization.

The cost for an open source based project is two thirds with respect to a project based on proprietary software.

You don't pay the operating system, but only value added services such as human resources training or customized developments or ports on your custom boards.

Decrease maintenance costs It's built with modern technologies and paradigms

Using standard technologies make it simpler to integrate the project with technologically different infrastructures.

 The community maintains itIt's convenient to use open source software because maintenance is shared with the community, thus decreasing costs

  Integrated with your featuresContributing your modifications means the community will maintain and keep up to date them with every new development for free.

BeR

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Fee

NoFee

- No license costs- No support cost- No maintenance cost- No cost increase

License

License Support Maintenance

Community

Support

Supplier

Renewal

Community

Maintenance

Supplier

Contracts

Economical advantages

- License costs- Support costs- Maintenance contracts- Annual cost increase

Discover BeRTOS

 BeRTOS is easy

 Supported platforms 

 Not only kernel!

 Performance: Memory Footprint, Overhead

 Competitors

 BeRTOS is different

 ... to Install Thanks to the Wizard and the SDK you can be ready in a few minutes on Windows.

 ... to UseThe graphical configuration Wizard is available on multiple platforms (Win, Mac and Linux) and it's integrated with a certified IDE (CodeLite)

 ... to MaintainThe public BeRTOS repository is managed by the community, which provides updates, ports and bugfix.

BeRTOS is easy ... 

Supported platforms

AT91SAM7S64

AT91SAM7S128

AT91SAM7S256

AT91SAM7X128

AT91SAM7X256

AT91SAM7X512

ARM7

ATMega8

ATMega32

ATMega64

ATMega103

ATMega128

ATMega168

ATMega1281

AVR

BeRTOS supports the most common microprocessor platforms (ARM and AVR). It's also possible to port it to any other platform.

Not only Kernel

ProcessMonitor

Kernel

MessageQueues

Semaphores

Signals

On/Off

BattFS ­ FAT ­ hashTabledynamic memory allocator

FIFO ­ Lists ­ Kernel

ADC API ­ BuzzerDataflash ­ I2C EEPROM

USB to parallelKeyboard ­ Graphic LCD

DC Motor with PIDAlphanumeric LCD

MPCdigital potentiometerNTC – TRIAC ­ PWM API

I2C port expanderSerial API ­ TC520 ADC

Thermostat ­ System timer APIStepper motor w/ramps

Watchdog ­ ... 

Modules

BeRTOS performances are remarkable, it can be compared with commercial versions of many RTOS (or more famous RTOS).

Kernel Performance

A few KB on flash with all kernel modules active (semaphore, signals, message queues)

Linear RAM occupation with the number of processes

Minimum stack: 200 bytes on 32-bit ARM, 100 bytes on 8-bit AVR

Context-switching speed: 2.2 us on ARM @ 48 MHz

From 25% to 30% faster than competitors

BeRTOS vs FreeRTOS

Maintainer

Platforms- ARM7TDMI- AVR- Other platforms

Features- Graphical wizard- Windows SDK- Debugging in IDE- FAT filesystem- Log/Debug

Support- Community- Commercial

Licensing

FreeRTOS1 developer

YesYesYes

NoNoNoNoNo

YesYes

Modified GPL

BeRTOSCommunity

YesYesNo

YesYesYesYesYes

YesYes

Modified GPL

Conclusions- Speed of Support/Bugfix/Needs

- BeRTOS allows quick ports to any custom platform

- Quick installation and configuration on Win, Mac and Linux systems- Availability of development and debugging tools integrated with the working environment- More features available

- High quality technical support

- Investments in software developments have competitive advantages without source code sharing

 Code BeautyEvery development on BeRTOS strictly follows the principles of code consistency and readability. The source code is completely commented to ease immediate understanding.

 SimplicityEvery development on the BeRTOS system is implemented following the simplicity principle. This principle makes the system much more modular (it can work without kernel!) and more scalable in the requirements and performance.

 ReusabilityApplying reusability principles to BeRTOS code allowed to improve parameters such as occupied physical space and lower resource requirements for system usage.

 SecurityBeRTOS allows a completely static memory allocation, implicitly making more secure your developments and your embedded applications.

BeRTOS is different

BeRTOS for Business

Fast Time to Market 

 Shorter development time

 Reduced start­up cost

 Focus on ideas

 Immediate support

 Stable and mature system

 Re­usability = More opportunities

BeRTOS guarantees a fast time to market, thanks to a complete feature set and easy-to-use development tools that contribute to cut down project's realization time. (Many modules and drivers are already built in)

Fast Time to Market

The reduced necessity to develop customized solutions can save you many development hours, thanks to many drivers and algorithms already included into the libraries.

Shorter development time

ADC handlingFlash memories

E2PROMKeyboard management

Graphical displaysStepper and DC motorsTriac for power control

PWN/NTCThermostat

Drivers

Checksum and HashXmodem protocolRLE compressionFull Hash Table

Command HistoryCommand parserLists and FIFOs

Exception handling

Algorithms

Develer reduces start-up costs, offering BeRTOS as free operating system even for:- closed source projects;- commercial projects.

● The total cost of ownership (TCO) is reduced thanks to:- the development technical community- the modified GPL license

Reduced start­up costs

@Image by Tab.itha: http://www.flickr.com/photos/tab_itha/

With BeRTOS you can shift your

economical focus from the tool (the

required licenses) to the product (your

application), as you don't need to buy a license

Focus on ideas

@Image by Majed: http://www.flickr.com/photos/majedphoto/

Support is available through a technical mailing list for developers:https://lists.develer.com/mailman/listinfo/bertos

There are also special premium support packages which guarantee support time, fixed cost ports, or ad hoc developments even on custom boards.

Premium support minimizes the risks of delays, due to technical problems, for your development team.

Immediate support

BeRTOS is constantly updated with new developments and patches which expand its features.

The system is considered mature thanks to 8 years presence in Develer's embedded projects. Develer also provides ports and bugfix

Stable and mature system

@Image by RyckyDavid: http://www.flickr.com/photos/cuppini/

Each component can be re-used in every other project, so you can quickly update or broaden your products by using existing code.

This allows to:

- release in short times a wider choice of embedded products;

- be in the forefront to consolidate your position in the embedded software market.

Re­usability = More opportunities

@Image by RyckyDavid: http://www.flickr.com/photos/cuppini/

BeRTOS in brief

 New features

 Configuration Wizard

 Windows SDK

 SDK: included software

Latest features

 Here are some of the latest additions to BeRTOS:

­ Multiplatform configuration Wizard

­ Support for FAT file system (long file names supported, requires a valid Microsoft 

license)

­ SD card reader 

­ Bootloader

­ I2S protocol driver

­ Flash and debug within the IDE

­ Automated test suite

Wizard: User's Needs

With the new Wizard we want developers to focus on writing code for their project instead of configuring and getting the tools ready; we think we have made it possible to expand BeRTOS user base even more!

Francesco Sacchi, Sviluppatore

“ Simplify project start-up

Auto-select modules based on dependencies

Extended compatibility (Win, Mac, Linux)

Integrated work environment (IDE, toolchain)

BeRTOS optimized IDE

Multi­platform Wizard

Create and modify quickly your project with a step-by-step graphical wizard: Select which BeRTOS version you want to use in your project; Choose Toolchain or microcontroller you want to use; Insert the modules needed by your application directly from the graphical

interface; Generate a project ready for CodeLite o GNU Make!

The Wizard is available on Windows, Linux, MacOS.

You're ready to create your application with just a few clicks!

Build System

BeRTOS 1.0.0

BeRTOS 2.0.0

WIZARD

User Settings

... Makefile

... CodeLite

...extensible with plugins

BeRTOS 2.1.0

...The build system can exploit different BeRTOS versions to create, based on user's needs, a project compatible with GNU Make and CodeLite

The system is easily customizable with plugins to be adapted to your IDE (Eclipse, Visual Studio etc.).

Wizard in Use

Project integration in CodeLite

Configuration with Wizard

Windows SDK

We have included, integrated and configured all the tools needed to start working with BeRTOS on Windows!

Windows installer highlights:

 BeRTOS AutoUpdate

 Toolchain download e update

 BeRTOS Wizard AutoUpdate

 Download e update of CodeLite (BeRTOS' certified IDE)

 Compiler integrated into the IDE

 Target flash and debug integrated into the IDE

SDK: included software

License

 License: Modified GPL

 Is it free for commercial products?

 Develer Premium Services

License: Modified GPL

 Is BeRTOS free? Yes.

Can I use it in my commercial embedded product? Yes, but you must declare that you are using it (possibly with a link to this website), and also distribute BeRTOS source code to anyone that might be asking for it.

If I use BeRTOS, am I forced to distribute source code of my embedded product? Not at all: you only need to distribute the source code of BeRTOS itself, including any modification you have made to it.

Do I need to pay any license or royalty? No, BeRTOS is completely free.

Can I use it without declaring that I'm using it? Not with the current license, but you can contact us to ask a modified license.

I don't want to give out the modified BeRTOS sources with my products, is it possible? Not with the current license, but you can contact us to ask a modified license..

I didn't modify BeRTOS, can I just put a link to this website in the documentation? Yes, that's enough.

Why do you want my modifications? Why should I give them to you? Because the license says so, but it's also an advantage for you: if you contribute your modifications to BeRTOS, we can integrate them within the official releases, so that we will then maintain those modifications ourselves, for free!

 Also, we might notice bugs in your code and fix them out, again for free! Contributing modifications is like outsourcing code maintenance for free, which is a real bargain if you think of it.

BeRTOS is copyrighted software, provided under the term of the GNU General Public License version 2 with following exception:

As a special exception, you may use this file as part of a free software library without restriction. 

Specifically, if other files instantiate templates or use macros or inline functions from this file, or you compile this file and link it with other files to produce an executable, this file does not by itself cause the resulting executable to be covered by the GNU General Public License. 

This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. 

GNU GPL version 2: http://www.fsf.org/licensing/licenses/info/GPLv2.html

:: License :: F.A.Q.

Free for commercial projects? YES!

If you are a company doing commercial embedded products, you can:

Download and use BeRTOS as you want

Sell products based on BeRTOS, without paying licenses nor royalties

Include BeRTOS within any product, distributed under any license

Modify BeRTOS as you want in any of its parts

Sell products based on BeRTOS without giving your application source code

Develer Premium Services

Ticketing Service with guaranteed minimum reply time.

BeRTOS port on your custom board

Customized driver development

Introductory courses to BeRTOS

Direct phone assistance

10 reasons ...

 Real­time multitasking kernel 

 Ready to use drivers: motors, memories, displays ... 

 Included libraries: protocols, data structures, graphics ... 

 Optimization: minimum overhead and low impact on ROM and RAM

 Commercial support in English

 Reliability: used also in medical devices

 Multiplatform configuration wizard

 Windows SDK with integrated IDE and toolchain

 Modularity: you can use it without kernel

 It's free! No licenses nor royalties costs!

BeRTOS use cases

Some of the products we have developed with BeRTOS:

SEAC Radim BRIOSample analyzer

BeRTOS is used as the control software (motors, 

valves, thermostats, pumps)

PowersoftPower amplifier

BeRTOS is used as a control software for power 

amplifier management

B4B FRASChemical analysis device

BeRTOS is used to control the analysis 

device, to manage the display, as well as the 

photometer and thermostats.

BeRTOS can be used in many different embedded fields, ranging from control system for offices to multimedia players (B­Speak) with file system management, multichannel audio and direct conversion to audio output, demonstrating its versatility.

Questions?

??

Thank you!Thank you!Contacts

Mail: info@bertos.org

Phone: +39-055-3984627

Fax: +39 178 6003614

http://www.bertos.org

Develer S.r.l. - Via Mugellese 1/A - 50013 Campi Bisenzio (FI) - Italia