LiteOS

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; 3 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.^[1] It is an open source, POSIX compliant operating system for Internet of things (IoT) devices, released under a three-clause BSD license.^[2] 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.^[3]

Smartwatches by Huawei and its former Honor brand run LiteOS.^[4][5] 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.^[2][1]

Key features

• Lightweight, small kernel; <10 kilobytes (kB)^[2][1]
• 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^[6]
  • 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

See also

• Embedded operating system
• HarmonyOS
• OpenHarmony
• HarmonyOS NEXT
• WearOS

References

1. "Huawei LiteOS: Concept and Value". Developer.Huawei.com. Huawei Technologies Co., Ltd. Archived from the original on 12 September 2018. Retrieved 12 September 2018.
2. "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.
3. 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.
4. 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.
5. "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.
6. "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.