- Small-footprint (small as 2KB, automatic scaling)
- Fast execution (sub microsecond context switch)
- Supports all popular processors and tools (see below)
- TraceX system analysis support
- Advanced Technology:
- Preemption-Threshold™
- Event Chaining™
- Performance Metrics
- Execution Profiling
- Run-time and Static Stack Analysis
- Multicore Support (SMP and AMP)
- Downloadable Application Modules
- Memory Protection for Downloadable Application Modules
- Extensive ThreadX ecosystem
- Safety Certifications (DO-178B, FDA510(k), IEC61508, etc)
- Deployed in over 1,000,000,000 devices
- Full Source Code
- Royalty-Free
- A2P
- AMD G-Series
- ARC
- ARM/Thumb
- AVR32
- BlackFin
- CEVA-TeakLite-III
- ColdFire/68K
- Freescale i.MX Family
- Freescale Kinetis
- Hitachi H8/300H
- Leon3
- Luminary Micro’s Stellaris®
- M-CORE
- MicroBlaze
- Microchip PIC24/dsPIC
- Microchip PIC32
- MIPS
- Nios II
- Power Architecture
- Renesas RX
- Renesas SH
- Renesas V8xx
- SHARC
- StarCore
- STMicroelectronics STM32
- StrongARM
- TMS320C54x
- TMS320C6x
- Win32
- x86/x386
- XScale
- Xtensa/Diamond
x86/x386
ThreadX for X86/x386
Highlights
Complete 386EX 32-bit family support Reasonable pricing No Royalties Complete ANSI C source code Easy to use and powerful services Responsive Technical Support Unlimited Threads, Queues, Event Flags, Timers, Semaphores, Mutexes, Block Pools, and Byte Pools Flexible memory usage Timeout available on all thread suspension Advanced preemption-threshold technique Low-overhead Application Timers Size scales automatically picokernel architecture for size and speed Small footprint (Instruction area size: 2 - 15K) Fast Execution (33MHz, 0 wait-states, 386EX)
Improve Your 386 32-bit Development
Let our extensive experience with the Intel 386 family of 32-bit microprocessors help your product development. ThreadX, our high-performance real-time kernel, helps improve your product's quality and its time-to-market. In addition, using ThreadX makes it easier to enhance your product in the future.
386 32-bit Optimizations
ThreadX optimizes context switching on the 386. When context switching occurs inside of a ThreadX service call, only the registers preserved across function calls are saved as part of the thread's context. This typically includes registers EBX, ESI, EDI, and EBP.
A similar technique is used in interrupt handling. On the front end of interrupt service routines, only the compiler's scratch registers are saved initially (typically EAX, ECX, and EDX). The full register set is saved only if thread preemption is required.
Easy to Use
ThreadX is designed for ease of use. Our API is designed to be easy to understand, powerful, and consistent. The same is true with our reference manual and other supporting documentation.
Development Tool Choices
ThreadX is completely compatible with all the major 386, 486 and Pentium development tools including Microsoft, MetaWare, Watcom, Borland, and the Green Hills MULTI development tools. Additional ThreadX-aware debugging is available with MULTI from Green Hills.

