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Real-time operating system from Huawei

Operating system

Lite OS
Developer	Huawei Technologies Co., Ltd.
Written in	C, assembly language, Shell
OS family	Real-time operating system
Working state	Discontinued
Source model	Open source
Initial release	May 20, 2015; 9 years ago (2015-05-20)
Latest release	V5.0 / December 2020; 4 years ago (2020-12)
Repository	Gitee.com/LiteOS/LiteOS
Marketing target	Internet Of Things, Smartwatches
Influenced by	Unix, FreeRTOS, Unix-like, Integrity, VxWorks (POSIX)
License	BSD 3-clause
Succeeded by	OpenHarmony
Official website	lanterns.eecs.utk.edu/software/liteos/,%20https://www.huaweicloud.com/product/liteos.html

Huawei Lite OS is a discontinued lightweight real-time operating system (RTOS) developed by Huawei. It is an open source, POSIX compliant operating system for Internet of things (IoT) devices, released under a three-clause BSD license. Microcontrollers of different architectures such as ARM (M0/3/4/7, A7/17/53, ARM9/11), x86, and RISC-V are supported by the project. Huawei LiteOS is part of Huawei's '1+8+N' Internet of Things solution, and has been featured in a number of open source development kits and industry offerings.

Smartwatches by Huawei and its former Honor brand run LiteOS. LiteOS variants of kernels has since been incorporated into the IoT-oriented HarmonyOS with open source OpenHarmony.

History

On 20 May 2015, at the Huawei Network Conference, Huawei proposed the '1+2+1' Internet of Things solution and release the IoT operating system named Huawei LiteOS. It has been reported development of the real-time operating system goes back as far as 2012.

Key features

Lightweight, small kernel; <10 kilobytes (kB)
Energy efficient
Fast startup within milliseconds
Support NB-IoT, Wi-Fi, Ethernet, BLE, Zigbee, and other different IoT protocols
Support access to different cloud platforms

Supported architectures

ADI
- ADuCM4050
Atmel
- Atmel SAM D21 Xplained Pro
- ATSAM4S-XPRO
- ARDUINO ZERO PRO
GigaDevice
- GD32F450I-EVAL
- GD32F190R-EVAL
- GD32F103C-EVAL
- GD32F150R-EVAL
- GD32F207C-EVAL
- GD32VF103
Huawei
- Hi3518
- Kirin A1
MediaTek
- LINKIT7687HDK
Microchip
- ATSAME70Q21
MindMotion
- MM32F103_MINI
- MM32L373
- MM32L073PF
Nuvoton
Nordic Semi
- NRF52840-PDK
- NRF52-DK
NXP
- LPC824_LITE
- LPC54110_BOARD
- FRDM-KW41Z
- FRDM-KL25Z
Silicon Labs
- EFM32 GIANT GECKO STARTER KIT EFM32GG-STK3700
- EFM32 PEARL GECKO STARTER KIT SLSTK3401A
- EFM32 HAPPY GECKO STARTER KIT SLSTK3400A
STMicroelectronics
- STM32F411RE-NUCLEO
- STM32F412ZG-NUCLEO
- STM32F429I_DISCO
- STM32L476RG_NUCLEO
- STM32F746ZG_NUCLEO
- STM32F103RB-NUCLEO
TI
- LAUNCHXL-CC3220SF

References

^ "Huawei LiteOS: Concept and Value". Developer.Huawei.com. Huawei Technologies Co., Ltd. Archived from the original on 12 September 2018. Retrieved 12 September 2018.
^ "Huawei's LiteOS Internet of Things operating system is a minuscule 10KB". BetaNews.com. BetaNews, Inc. 20 May 2015. Archived from the original on 25 November 2020. Retrieved 12 February 2021.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
July 2020, Naushad K. Cherrayil 09. "Huawei's "1+8+N" strategy will be a big success in China as it has no competitors". TechRadar. Archived from the original on 24 June 2021. Retrieved 17 June 2021.{{cite web}}: CS1 maint: numeric names: authors list (link)
Ricker, Thomas (19 September 2019). "Huawei Watch GT 2 runs LiteOS and lasts up to two weeks". www.TheVerge.com. The Verge. Retrieved 3 February 2021.
"The Honor Magic Watch 2 is a great wearable, but LiteOS is too light". www.XDA-Developers.com. XDA Developers. 17 December 2019. Retrieved 3 February 2021.
"GigaDevice unveils the GD32V series with RISC-V core, in a brand new 32bit general purpose microcontroller". www.GigaDevice.com. GigaDevice. 22 August 2019. Archived from the original on 29 August 2019. Retrieved 12 February 2021.

Real-time operating systems (RTOS)

Operating
systems

POSIX support

Unix-like	DNIX Junos OS LynxOS Multi-Environment Real-Time^ (MERT – Unix-RT) OS2000 QNX^ Real-Time Linux° RTLinux° UNOS
LiteOS	LiteOS°
Partial	ChorusOS^ Integrity^ Nucleus RTOS^ NuttX^° Operating System Embedded^ (OSE) PX5 RTOS^ RIOT^°