实时操作系统比较

下表是实时操作系统的列表。RTOS是处理一次输入刺激的时间小于待到同类型的下一次输入刺激的流逝时间的一种操作系统。

名称许可证源代码模式目标用途状态平台官方网站
Abassi专有封闭嵌入式活跃AVR32, ATmega, ColdFire, Cortex-A9, Cortex-M0, Cortex-M3, Cortex-M4, MSP430, PIC32, TMS320C2000, 80251, 8051www.code-time.com/products.html
AMOS专有?商业关闭680x0, 683xx, x86 通过模拟器www.alphamicro.com
AMX RTOS专有封闭嵌入式活跃680x0, 683xx, ARM, ColdFire, MIPS32, PowerPCwww.kadak.com/rtos/rtos.htm
Apache MynewtApache 2.0开放嵌入式活跃ARM Cortex-M, MIPS32, Microchip PIC32, RISC-Vmynewt.apache.org
Arm Mbed OSApache 2.0开放源代码嵌入式活跃Cortex-M, Cortex-R, Cortex-Aos.mbed.com
uKOSGNU GPL开放源代码嵌入式活跃Cortex-M3-M4-M7-H7, 6833x, PIC, CSEM icyflex-1, STM32www.ukos.ch
ARTOS (Locamation)专有封闭电力系统自动化活跃x86www.locamation.com
ARTOS (Robotu)专有?嵌入式, 机器人终止ARM9+www.robotu.com/ARTOS/Welcome.html
AtomthreadsBSD开放源代码嵌入式活跃AVR, STM8, ARM, MIPSatomthreads.com
AVIX专有封闭嵌入式活跃Atmel AT91SAM3(U/S), EFM32, NXP LPC1300-1700, ST Micro STM32, Texas Instruments LM3S, Toshiba TMPM330, Microchip PIC32MX-PIC24F-PIC24H-dsPIC30F-dsPIC33Fwww.avix-rt.com
BeRTOS修改的 GNU GPL开放源代码嵌入式活跃ARM, Cortex-M3, ARM ARM7TDMI, Atmel AVR, PowerPC (模拟), x86 (模拟), x86-64 (模拟)www.bertos.org
BOOS CoreGNU GPL开放源代码嵌入式活跃ARMv5TEJ (TI AM18x), DSP (TI TMS320C64x)www.baigudin.software/boos/
BRTOSMIT开放源代码嵌入式活跃Freescale Kinetis (ARM Cortex-M4), Freescale Coldfire V1, Freescale HCS08, ST STM32F4xx (ARM Cortex-M4F), NXP LPC11xx (ARM Cortex-M0), NXP LPC176x (ARM Cortex-M3), Renesas RX600 (RX62N), Texas Instruments MSP430, Texas Instruments Stellaris LM3S8968 (ARM Cortex-M3), Texas Instruments Stellaris LM4F120H5QR (ARM Cortex-M4F), Atmel ATMEGA328/128, Microchip PIC18github.com/brtos/brtos
CapROSGNU GPL开放源代码嵌入式活跃IA-32, ARM9www.capros.org
ChibiOS/RT混合, GNU GPL 或专有开放源代码嵌入式, 小量内存占用活跃x86, ARM7, ARM9, Cortex-M0-M3-M4, PowerPC e200z, STM8, STM32, AVR, MSP430, ColdFire, H8Swww.chibios.org/dokuwiki/doku.php, sourceforge.net/projects/chibios
ChorusOS???终止SPARC, x86, PowerPCdocs.sun.com/app/docs/prod/chorus5
ChronOSGNU GPL开放源代码研究, 通用活跃x86, ARMchronoslinux.org
CoActionOS (现在的 Stratify OS)修改的 GNU GPL 或专有开放源代码嵌入式停止ARM Cortex-M3, LPC17xxwww.coactionos.com
cocoOSBSD开放源代码嵌入式活跃AVR, MSP430, STM32www.cocoos.net
Concurrent CP/M,
变成了 MP/M		专有封闭 (同时开放源代码)通用, 工业历史上的8080, Z80, 8086Digital Research
Concurrent DOS,
变成了 Multiuser DOS		专有封闭通用, 工业终止8086, 286, 386, 68000, (还有 8080/Z80 双处理器变体)Digital Research
ContikiBSD开放源代码嵌入式, WSN活跃MSP430, AVR, ARMwww.contiki-os.org
COS专有封闭过程控制终止GEC 4000 series?
CooCox CoOSBSD开放源代码通用活跃STM32, NXP LPC1000, TI LM3S8962, Nuvoton NU1xx,Holtek HT32www.coocox.org/CoOS.htm 此原始官網已失效, 已移至 github.com/coocox/CoOS
Deos专有封闭安全关键活跃x86, PowerPC, MIPSwww.ddci.com/products_deos.php
DioneOS专有在许可证下可获得嵌入式活跃MSP430, MSP430xwww.elesoftrom.com.pl/en/os
distortosMozilla开放源代码嵌入式活跃ARMv6-M 架构 (ARM Cortex-M0, ARM Cortex-M0+, ARM Cortex-M1): STM32F0, STM32L0; ARMv7-M 架构 (ARM Cortex-M3, ARM Cortex-M4(F), ARM Cortex-M7(F)): STM32F1, STM32F4, STM32F7, STM32L4distortos.org
DNIX专有封闭通用终止68000?
dnx RTOSGNU GPL, 修改的 GPL, BSD开放源代码嵌入式 (类Unix系统)活跃ARM Cortex-M3, STM32www.dnx-rtos.org
GEC DOS专有封闭过程控制终止GEC 4000 系列?
DSOS???终止TI-980A 小型机?
DSP/BIOS免费封闭, 在许可证下可获得通用只维护多数 Texas Instruments C2800, C5500, C6000 和 OMAP DSP 核心. 被 TI-RTOS 替代，但仍可下载获取。www.ti.com/tool/dspbios
DSPnano RTOS混合, 开放源代码和商业开放源代码MCU, DSC, DSP SoC活跃R8C, M16C, PIC24, dsPIC33www.rowebots.com/products/dspnano
DuinOS修改的 GNU GPL开放源代码通用活跃AVR (Arduino)code.google.com/p/duinos
eChronos AGPLv3 开放源代码 嵌入式 活跃 ARM Cortex-M3 - M7 https://ts.data61.csiro.au/projects/TS/echronos/（页面存档备份，存于）
eCos修改的 GNU GPL开放源代码嵌入式活跃ARM-XScale-Cortex-M, CalmRISC, 680x0-ColdFire, fr30, FR-V, H8, IA-32, MIPS, MN10300, OpenRISC, PowerPC, SPARC, SuperH, V8xxecos.sourceware.org
eCosPro修改的 GNU GPL 或 eCosPro license开放源代码，带有非免费部分嵌入式活跃ARM7-9, Cortex-A5-A9-M3-M4-M7, 680x0-ColdFire, H8-H8S, IA-32, MIPS32, MIPS64, microMIPS, NIOS II, OpenRISC, PowerPC, SPARC, SH4/4A, TILE-Gx, XScalewww.ecoscentric.com/ecos/ecospro.shtml
embOS专有封闭, 客户可获得, 对非商业使用免费嵌入式, 工业, IoT, 安全关键活跃ARM7/9/11, ARM Cortex-A/R/M, AVR, AVR32, C16x, CR16C, ColdFire, H8, HCS12, M16C, M32C, MSP430, NIOS2, PIC18/24/32, R32C, R8C, RISC-V, RL78, RH850, RX100/200/600/700, RZ, SH2A, STM8, ST7, V850, 78K0, 8051www.segger.com/embos.html
EmboxBSD开放源代码嵌入式活跃ARM, LEON, MicroBlaze, MIPS, PowerPC, x86github.com/embox/embox
EmbkernelGNU LGPL开放源代码嵌入式活跃ARM Cortex Msourceforge.net/p/embkernel
ERIKA EnterpriseGPL 和 GPL linking exception开放源代码嵌入式活跃ARM7, ARM Cortex-M, ARM Cortex-A (在 Jailhouse hypervisor 上), Hitachi H8, Altera Nios2, Microchip dsPIC (包括 dsPIC30, dsPIC33 和 PIC24), Microchip PIC32, ST Microelectronics ST10, Infineon C167, Infineon Tricore, Freescale PPC e200 (MPC 56xx) (包括 PPC e200 z0, z6, z7), Freescale S12XS, EnSilica eSi-RISC, AVR, Lattice Mico32, MSP430, Renesas RX200, x86-64 (在 Jailhouse hypervisor 上)www.erika-enterprise.com
EUROS专有封闭嵌入式活跃8/16/32 bit 处理器: 尤其是 AVR, 8051, XC800, 16FX, XC166, ARM, Cortex-M3, PowerPC, Nios II, MIPS32, PIC32www.euros-embedded.com
EROS修改的 GNU GPL开放源代码实验
研究用途		休眠IA-32www.eros-os.org
F9 微内核修改的 BSD开放源代码嵌入式维护ARM Cortex-M3/M4github.com/f9micro/f9-kernel
Femto OSGNU GPLv3开放源代码嵌入式活跃AVRwww.femtoos.org
FlexOS专有封闭通用, 工业, POS终止186, 286, 386, V60, V70, 68000Digital Research, Novell
Flexible Safety RTOS专有封闭, 对客户可获得嵌入式, 安全关键活跃ARM9, ARM Cortex-M, ARM Cortex-R, ARM Cortex-A, ColdFire, QorIQ, Infineon TriCore, Infineon AURIXwww.embedded-office.com
FreeOSEKGNU GPLv3开放源代码嵌入式活跃Cortex-M4, MIPS, MSP430, SPARC LEON3github.com/ciaa/Firmware
FreeRTOSMIT开放源代码嵌入式活跃ARM, AVR, AVR32, ColdFire, HCS12, IA-32, Cortex-M3-M4-M7, MicroBlaze, MSP430, PIC, PIC32, Renesas H8/S, RX100-200-600-700, 8052, STM32, EFM32www.freertos.org
FrostedGNU GPL开放源代码嵌入式, 遵从POSIX, 类Unix系统活跃ARM Cortex-Mgithub.com/insane-adding-machines/frosted
Fuchsia 多样 开放源代码 嵌入式 活跃 AArch64, x86-64 fuchsia.googlesource.com（页面存档备份，存于）
FunkOS修改的 Sleepycat License开放源代码嵌入式活跃AVR, MSP430, Cortex-M3funkos.sourceforge.net
Fusion RTOS免费?准通用活跃ARM, Blackfin, StarCore, DSP 56800E
FX-RTOS专有提供源代码嵌入式活跃ARMv6-M (Cortex-M0/M1), ARMv7-M (Cortex-M3), ARMv7-A (including Cortex A9 MPCore), x86, AVR32, PIC32, MIPS M4K, TI MSP430rtos.eremex.com/products, fxrtos.ru
HeartOS专有封闭安全关键活跃x86, PowerPC, ARMwww.ddci.com/products_heartos.php
HeliumGNU LGPL开放源代码嵌入式活跃HCS08, AVRhelium.sourceforge.net
HP-1000/RTE?????www.hp.com/products1/rte/tech_support/documentation
Hybridthreads?开放源代码FPGA活跃Xilinx Virtex-II Pro ML310, Xilinx Virtex-II Pro XUPhthreads.csce.uark.edu/wiki/About_Hthreads
hyperCOS?免费评估 (不开放源代码)嵌入式活跃ARM7, ARM9, Cortex-R, Cortex-M3, Cortex-M4Fsocware.net
IBM 4680 OS专有封闭通用, 工业, POS终止286IBM (DR Concurrent DOS 286 派生)
IBM 4690 OS专有封闭通用, 工业, POS活跃286, 386IBM (DR FlexOS 286/386 派生)
Integrity专有封闭嵌入式活跃ARM, XScale, Blackfin, ColdFire, MIPS, PowerPC, x86www.ghs.com/products/rtos/integrity.html
INtime专有封闭嵌入式活跃x86www.tenasys.com/intime
IntrOSMIT开放源代码嵌入式, 小量内存占用活跃ARM Cortex-M, STM8, AVR8github.com/stateos/IntrOS
ITRON, µITRON多样多样嵌入式活跃ARM, MIPS, x86, Renesas RX100-200-600-700-otherswww.tron.org, www.t-engine.org
ISIXGNU LGPL开放源代码嵌入式活跃Cortex-M3bryndza.boff.pl/index.php?dz=rozne&id=isixrtos
iRTOSGNU LGPL开放源代码嵌入式活跃AVR, ARM7irtos.sourceforge.net
KolibriOSGNU GPL开放源代码可嵌入活跃x86www.kolibrios.org
Kithara RTS专有封闭通用, 工业活跃Windows 扩展, x86, x86-64, Windows XP-10www.kithara.de
LeptonMozilla开放源代码可嵌入活跃ARM9 (ATMEL AT91SAM9261, AT91SAM9260), ARM7 (ATMEL AT91SAM7x, AT91SAM7SE, AT91M55800), CortexM3 (ST STM32F103, Texas Instrument Stellaris)，CortexM4 (Freescale Kinetis)github.com/lepton-distribution/lepton
LithOS专有?嵌入式, 工业活跃LEON2-3-4, x86www.fentiss.com, www.xtratum.org
LynxOS专有源代码可获得嵌入式活跃Motorola 68010, x86/IA-32, ARM, Freescale PowerPC, PowerPC 970, LEONwww.lynuxworks.com/rtos
Mark3BSD开放源代码嵌入式活跃, beta?www.mark3os.com
MaRTE OSGNU GPL开放源代码嵌入式活跃IA-32marte.unican.es
MAX II,IV专有???MODCOMP II, IV, ...?
MenuetOSGNU GPL开放源代码?活跃IA-32www.menuetos.net
Menuet 64专有未知?活跃IA-32, x86-64?
MicroC/OS-II专有在许可证下可获得嵌入式活跃ARM7-9-11/Cortex-M1-3-4-A8/9, AVR, HC11/12/S12, ColdFire, Blackfin, MicroBlaze, NIOS, 8051, x86, Win32, H8S, M16C, M32C, MIPS, 68000, PIC24-dsPIC33-PIC32, MSP430, PowerPC, SH, StarCore, Renesas RX100-200-600-700, RL; STM32, …micrium.com/rtos/ucosii/overview
MicroC/OS-III专有在许可证下可获得嵌入式活跃ARM7-9-11/Cortex-M1-3-4-A8/9, AVR, HC11/12/S12, ColdFire, Blackfin, MicroBlaze, NIOS, 8051, x86, Win32, H8S, M16C, M32C, MIPS, 68000, PIC24/dsPIC33/PIC32, MSP430, PowerPC, SH, StarCore, Renesas RX100-200-600-700, RL; STM32, …micrium.com/rtos/ucosiii/overview
MilosGNU GPL开放源代码嵌入式活跃Cortex-M3www.milos.it
miosixGNU GPL开放源代码嵌入式活跃stm32, efm32 e LPC2000www.miosix.org
mipOS专有开放源代码嵌入式活跃Cortex-M3, ST7, STM8, x86sites.google.com/site/eantcal/home/mipos
Microsoft Invisible Computing (MMLite)专有开放源代码嵌入式活跃ARM7-9, i386, h8, mips, Trimedia, eCog1research.microsoft.com/invisible
mLithOS专有?嵌入式, 工业活跃LEON2-3-4, x86www.fentiss.com, www.xtratum.org
MP/M专有封闭 (同时开放源代码)通用, 工业终止8080, Z80, 8086Digital Research
MQX专有免费赠送源代码可获得嵌入式活跃Freescale Power, ColdFire, Kinetis Cortex ARMwww.freescale.com/mqx
MERT???活跃PDP-11?
Multiuser DOS专有封闭通用, 工业终止386Digital Research/Novell, Concurrent Controls, Datapac, IMS (参见 REAL/32)
Nano-RK混合开放源代码嵌入式, WSN活跃AVR, MSP430www.nanork.org
Neutrino专有提供一些源代码微内核活跃ARM, MIPS, PPC, SH, x86, XScalewww.qnx.com/products/neutrino_rtos
NI Linux Real-Time专有开发自开放源代码数据采集和过程控制活跃National Instruments CompactRIO 控制器www.ni.com/white-paper/14627/en/
nOSMozilla开放源代码嵌入式活跃AVR, MSP430, Cortex-M0-M3-M4, M16C, RX600, PIC24, Win32, POSIX, STM8github.com/jimtremblay/nOS
Nucleus RTOS专有提供源代码嵌入式活跃ARM (Cortex-M3-M4-R4-R4F-A8-A9, ARM7-9-11), PowerPC, MIPS32-16e, microMIPS, ColdFire, SuperHwww.mentor.com/embedded-software/nucleus
NUFR修改的 BSD开放源代码嵌入式活跃ARM (Cortex-M0,-M3,-M4), MSP430, MSP430X (16-位和20-位模式)ragingdist.org
Nut/OSBSD开放源代码嵌入式, 工业活跃AVR, AVR32, ARM7, ARM9, Cortex-M3www.ethernut.de/en/firmware/nutos.html
NuttXBSD开放源代码嵌入式, 小量内存占用活跃Linux 用户模式, ARM7-9, Cortex-A5-A8-A9-M0-M3-M4-M7, 8052, Espressif ESP32, Lattice LM32, Renesas MC16C/26/SH-1, RISC-V , Zilog Z16F, Zilog eZ80 Acclaim!, Zilog Z8Encore!, Z80, MIPS PIC32MX, PIC32MZwww.nuttx.org
OpenEPOS专有开放源代码嵌入式活跃ARM, x86, AVR, MIPS, PowerPCepos.lisha.ufsc.br
OS20专有封闭嵌入式 (STB)只维护ST20?
OS2000专有?嵌入式活跃MIPS (Baget-MIPS 变体), KOMDIV-32, KOMDIV-64, Intel BSP (x86 架构)www.niisi.ru/otd07.htm
OS21专有提供源代码嵌入式 (STB)活跃ST40/SH4,ST200,ARM?
OS4000专有封闭过程控制只维护GEC 4000 系列?
OpenRTOS专有源代码可获得嵌入式活跃同于 FreeRTOSwww.highintegritysystems.com/rtos/openrtos
OSABSD开放源代码嵌入式活跃PIC10-PIC24, AVR 8-bit, STM8wiki.pic24.ru/doku.php/en/osa/ref/intro
OSE专有客户可获得通用活跃ARM, PowerPC, x86, TI OMAP, …www.enea.com/ose
OS-9专有客户可获得嵌入式活跃ARM-strongARM, MIPS, PowerPC, SuperH, x86/Pentium, XSCALE, Motorola 6809, 680x0, SPARCwww.microware.com
OSEK混合, 开放源代码和商业特殊嵌入式活跃引擎控制单元www.osek-vdx.org (不工作一段时间了), 最好参看 www.autosar.org（页面存档备份，存于）
Partikle专有?嵌入式, 工业活跃LEON2-3-4, x86www.fentiss.com, www.xtratum.org
Phar Lap ETS??????
PaulOSGNU GPL开放源代码嵌入式??paulos.2038bug.com
PICOS18GNU GPL开放源代码嵌入式?PIC18?
picoOS修改的 BSD开放源代码嵌入式维护6502, 80x86, ARM7, AVR, PowerPC,Cortex-M,MSP430,PIC32picoos.sourceforge.net,github.com/AriZuu/picoos
Piko/RT修改的 BSD开放源代码嵌入式活跃ARM Cortex-M3/M4github.com/pikort/pikoRT
PharosApache 2.0开放源代码嵌入式, 工业, 安全关键活跃ARM926, Cortex-R5, Cortex-M4, Cortex-A53 (都带有内存保护)sourceforge.net/projects/rtospharos/
Phoenix-RTOS专有?嵌入式?ARM7, IA-32, eSI-RISCwww.phoenix-rtos.org
PikeOS专有客户可获得安全关键, 虚拟化活跃PPC, x86, ARM, MIPS, SPARC-LEON, SuperHwww.sysgo.com/pikeos
Portos专有提供源代码嵌入式, 小量内存占用活跃(ARM 马上)www.portos.org
POKBSD开放源代码嵌入式活跃x86, PowerPC, SPARCpok.safety-critical.net
PowerTV专有????www.powertv.com
PrexBSD开放源代码微内核活跃ARM, IA-32prex.sourceforge.net
ProtothreadsBSD开放源代码通用活跃架构无关dunkels.com/adam/pt/
pSOS专有??停止680x0?
QNX专有?通用, 医疗设备活跃IA-32, MIPS, PowerPC, SH-4, ARM, StrongARM, XScalewww.qnx.com
QP双重, 开放源代码和商业双重MCU, DSC, DSP SoC活跃ARM7/9, ARM Cortex-M3-M0, MSP430, TMS320C28x, AVR, AVRXmega, ColdFire, 68HC08, M16C/R8C, H8, 8051, 80251, PIC18, PIC24/dsPIC33, Nios II, PSoC1www.state-machine.com/qp
Kaspersky OS专有?安全关键, 虚拟化活跃??
Data General RDOS专有?通用终止Data General Nova, Data General Eclipse?
ReaGOS专有封闭, 在许可证下可获得嵌入式活跃x86, ATmega, ARM, 可移植www.reagos.com
REAL/32专有封闭通用, 工业活跃386IMS (多用户 DOS 派生)
RedHawk Linux (Red Hat 兼容)专有封闭, 在许可证下可获得嵌入式活跃x86, 其他www.ccur.com/linux/products/redhawk
Real-time Linux (CONFIG_RT_PREEMPT)GNU GPLv2开放源代码通用活跃同于 Linuxwww.osadl.org/Realtime-Linux.projects-realtime-linux.0.html, rt.wiki.kernel.org, wiki.linuxfoundation.org/realtime/start
REX OS专有封闭, 在许可证下可获得嵌入式活跃ARMREX OS
RIOTGNU LGPL开放源代码嵌入式活跃ARM, MSP430, AVR, x86www.riot-os.org
RMX专有封闭嵌入式终止8080, 8086, 80386 或更高www.tenasys.com/rmx
RODOSBSD提供源代码嵌入式活跃ARMv7 (M3, A8, A9), AVR32, PowerPC 405, sparc64

平台: SmartFusion2（页面存档备份，存于）, RaspberryPi, STM32 在OS之上: Linux, Windows, MacOS, FreeRTOS, RTems

 rodos download（页面存档备份，存于）
RSX-11专有??历史上的PDP-11n/a
RT-11专有?通用终止PDP-11n/a
RTAIGNU GPL开放源代码通用活跃x86, ARMwww.rtai.org
RTEMS修改的 GNU GPL开放源代码嵌入式活跃ARM, Blackfin, ColdFire, TI C3x/C4x, H8/300, x86, 68k, Milkymist SoC, MIPS, Nios II, PowerPC, SuperH, SPARC, ERC32, LEON, Mongoose-Vrtems.com
RTLinuxGNU GPL开放源代码通用活跃同于 Linuxn/a
RT-ThreadApache 2.0开放源代码嵌入式活跃ARM, ARM Cortex-M0-M3-R4-M4-M7, IA-32, AVR32, Blackfin, nios, PPC, M16C, MIPS (loongson-1b-1c, PIC32，xburst), MicroBlaze, V850, unicore32,code.google.com/p/rt-thread, www.rt-thread.org
RTXC Quadros专有源代码可获得嵌入式活跃ARM - Atmel/Freescale/NXP/ST/TI, Blackfin, 680x0-ColdFire, PowerPC, StarCore, TI-Luminary Stellaris, TI OMAP, XScalewww.quadros.com/products/operating-systems
RTX, RTX64专有封闭MS Windows 扩展活跃x86, x86-64www.intervalzero.com/rtx.htm
RTX Keil 实时操作系统专有, 免专利费源代码可获得嵌入式活跃ARMwww.keil.com/arm/rl-arm/kernel.asp
Ruff专有封闭嵌入式, 通用, 工业, IoT活跃ARM, MIPS, x86ruff.io/docs/faq.html
RX116??嵌入式, 工业终止NEC V20, NEC V30, NEC V40, NEC V50第一个 ITRON 1 兼容 16-bit RTOS
RX616??安全关键, 嵌入式, 工业终止NEC V60, NEC V7032-bit ITRON 兼容
RX-UX832??嵌入式, 工业, 通用终止NEC V60, NEC V7032-bit 类Unix RTOS
SafeRTOS专有源代码和设计保证可获得嵌入式, 安全关键活跃同于 FreeRTOS同于 FreeRTOS
SCIOPTA专有封闭, 源代码可获得嵌入式, 安全相关活跃ARM, Cortex-M0-M3-M4, Cortex-R4, Cortex-A5, Cortex-A7, Cortex-A9, Cortex-A53, XScale, Renesas RX100, RX200, RX600, RX700, PowerPC, ColdFire, HCS12, M16C, Windows (仿真器), Aurix TC2xx, BlackFin BF52x, BF70xwww.sciopta.com
scmRTOS免费开放源代码嵌入式活跃ARM, Cortex-M3, Blackfin, MSP430, AVR, STM8scmrtos.sourceforge.net
SDPOSGNU LGPL开放源代码嵌入式活跃ARM, Cortex-M3, Blackfin, PIC18, PIC24, i386 win32/linux 综合目标www.sdpos.org
SHaRKGNU GPL开放源代码?活跃?shark.sssup.it
silRTOS免费开放源代码嵌入式活跃ARM, Cortex-M Cortex-A9 ARM-11MP, Blackfin, MIPS, AVRspanidea.com/products.php
SimbaMIT开放源代码嵌入式活跃, betaArduino Nano (AVR), Arduino Mega (AVR), Arduino Due (ARM), ESP8266, ESP32, cygwin/linuxsimba-os.readthedocs.org/en/latest
SimpleAVROSGNU GPLv3开放源代码嵌入式活跃, beta唯有 AVRn/a
SINTRAN III????Norsk Data 计算机n/a
SOOS Project免费开放源代码嵌入式活跃, betaH8/300www.ingelec.uns.edu.ar/rts/soos
StateOSMIT开放源代码嵌入式, 小量内存占用活跃ARM Cortex-M, STM8github.com/stateos/StateOS
Stratify OS修改的 GNU GPL 或专有开放源代码嵌入式活跃ARM Cortex-M3, M4stratifylabs.co/Stratify-OS/
Symbian OSEclipse开放源代码嵌入式终止ARMwww.symbian.org
Talon DSP RTOS专有?嵌入式 DSP活跃TMS320www.blackhawk-dsp.com/Talon.aspx
TargetOS专有客户可获得嵌入式活跃ARM, Cortus, Freescale ColdFire, PowerPCwww.blunkmicro.com/os.htm
T-KernelT-License源代码可获得嵌入式 RTOS活跃ARM, MIPS, SH, 更多www.t-engine.org
THEOS?????www.theos-software.com
ThreadX专有客户可获得?活跃ARC, ARM/Thumb, AVR32, BlackFin, 680x0-ColdFire, H8-300H, Luminary Micro Stellaris, M-CORE, MicroBlaze, PIC24-dsPIC, PIC32, MIPS, V8xx, Nios II, PowerPC, Renesas RX100, RX200, RX600, RX700, Synergy, SH, SHARC, StarCore, STM32, StrongARM, TMS320C54x, TMS320C6x, x86/x386, XScale, Xtensa/Diamond, ZSPrtos.com/solutions/threadx/
TizenRT （页面存档备份，存于）Apache 2.0开放源代码嵌入式活跃ARMgithub.com/Samsung/TizenRT
TI-RTOS 内核 (SYS/BIOS)BSD开放源代码嵌入式活跃多数 Texas Instruments: MSP430-432, C2000-5000-6000, TI 的 ARM 家族 (Cortex M3-4F-R4-A8-A15), SimpleLink Wireless CC2xxx-CC3xxxwww.ti.com/tool/sysbios
Tock OSApache 2.0/MIT 开放源代码 嵌入式 活跃 ARM Cortex https://www.tockos.org（页面存档备份，存于）
Trampoline 操作系统 (OSEK 和 AUTOSAR)GNU GPLv2开放源代码嵌入式活跃AVR, H8-300H, POSIX, NEC V850e, ARM7, Infineon C166, HCS12 或 PowerPCtrampoline.rts-software.org
TNKernelBSD开放源代码嵌入式活跃ARM, PIC24-32-dsPIC, HCS08, STM32 (Cortex-M3)www.tnkernel.com
TNeoBSD开放源代码嵌入式活跃Cortex-M0-M0+-M1-M3-M4-M4F, PIC24-32-dsPICgithub.com/dimonomid/tneo
Transaction Processing Facility专有?通用活跃IBM System/360 派生www.ibm.com/software/htp/tpf
TRON 计划免费混合混合活跃任何: 是标准而非实现www.tron.org/index-e.html
TUD:OSGNU GPL开放源代码?活跃ARM, IA-32, x86-64demo.tudos.org/eng_about.html
Unison RTOS混合, 开放源代码和商业开放源代码MCU, DSC, DSP SoC, FPGA活跃Pic32, ARM Cortex (TI Stellaris Tiva Sitara, ST STM32, NXP LPC1X00, Freescale iMX6 Kinetis, Renesas RZ, RX600, SH2A, SH2AFPU, R32C, MIPS4K, {SHARC, ColdFire, Xilinx MicroBlaze, 专有}www.rowebots.com/en/products/unison-rtos-article
UNIX-RTR???终止PDP-11?
uSmartxBSD开放源代码嵌入式?ARM7TDMI, AVR, H8usmartx.sourceforge.net
u-velOSity专有?微内核活跃?www.ghs.com/products/micro_velosity.html
velOSity???活跃Power 架构, ARM/XScale, MIPS, x86/Pentium, ColdFire, Blackfin, OMAP, DaVinciwww.ghs.com/products/velosity.html
VRTX专有??被 Nucleus RTOS 取代ARM, MIPS, PowerPC, RISCwww.mentor.com/embedded-software/nucleus
VxWorks专有?嵌入式活跃ARM, IA-32, Intel 64, MIPS, PowerPC, SH-4, StrongARM, xScalewww.windriver.com/products/vxworks
Windows CE专有Microsoft 共享源代码嵌入式活跃x86, MIPS, ARM, SuperHwww.microsoft.com/windowsembedded
XenomaiGNU GPLv2开放源代码通常活跃x86, x86-64, PowerPC, ARM, Analog Devices Blackfin BF52x, BF53x, BF54x 和 BF56xwww.xenomai.org
XMKBSD开放源代码嵌入式活跃, beta?www.integerfox.com/xmk
Simulink Real-Time专有封闭实时测试-嵌入式活跃x86www.mathworks.com/products/simulink-real-time
Y@SOSGNU LGPL开放源代码嵌入式活跃Cortex-M3, STM32www.yasos.org
MontaVista LinuxGNU GPL开放源代码嵌入式活跃?www.mvista.com
UNOS???历史上的680x0?
uOSGNU GPL开放源代码嵌入式活跃AVR, ARM, MIPS32, MSP430, Intel i386, Linux386code.google.com/p/uos-embedded/wiki/about
华为 LiteOSBSD开发源代码嵌入式活跃ARM (M0/3/4/7, A7/17/53, ARM9/11), X86,RISC-Vwww.huawei.com/minisite/liteos/en/about.html
ZephyrApache 2.0开放源代码嵌入式活跃ARM (Cortex-M0, Cortex-M3, Cortex-M4, Cortex-M23, Cortex-M33), x86, ARC, RISC-V, Nios II, Xtensawww.zephyrproject.org

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