threadx Snapshot

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

threadx Processor Support

News

Express Logic’s ThreadX® RTOS Outshines Competition in 2012 Embedded Developer Survey

ThreadX outperformed other RTOSes in project success and on-time completion [+]

Express Logic Celebrates at Design West 2012

[+]

Express Logic Introduces ThreadX-Lite™ for IAR Embedded Workbench Users

Jointly developed, ThreadX-Lite is fully integrated with IAR Embedded Workbench… [+]

Express Logic’s NetX™Achieves Near-Wire Speed on STM32® Platform

NetX high speeds achieved with less than 35% CPU utilization [+]

Renesas V8xx

ThreadX for V8xx

Highlights

Complete V8xx support

Green Hills MULTI (with ThreadX-aware debugging) Development Tools

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 (as low as 4 Kbytes)

Fast Execution (2.9us context switch@33MHz)

Improve Your V8xx Development

Let our extensive experience with the V8xx family of 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.

V8xx Optimizations

ThreadX optimizes context switching on the V8xx. 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, i.e. registers r5, r20-r31.

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 (registers r1, r2, r6-r19). The full register set is saved only if thread preemption is required.