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 [+]

Compatibility for OSEK

Compatibility Kit for OSEK Users by Express Logic

Compatibility Kit Overview

The OSEK Compatibility Kit is designed for current OSEK users. The kit defines the basic OSEK services, with some limitations, and utilizes ThreadX® primitives underneath. The new OSEK compatibility layer should have very high performance, since the Compatibility Kit utilizes internal ThreadX primitives and bypasses basic ThreadX error checking. However, the application will achieve even greater performance and size benefits if actual ThreadX primitives are used instead of OSEK services.

Compatibility Kit Source

The Compatibility Kit source code is designed for simplicity and is comprised of only two files, namely tx_osek.h and tx_osek.c. The tx_osek.h file defines all the necessary OSEK constants and Subroutine prototypes, while tx_osek.c contains the actual OSEK compatibility source. These Compatibility Kit source files are common to all ThreadX support packages.

Compatibility Kit Documentation

The Compatibility Kit User Guide provides an overview of the porting process, including various caveats and pitfalls to watch out for. In addition, each covered OSEK Subroutine is documented, including information about supported/unsupported options, limitations, deviations, and suggestions on how to workaround any limitations.

Compatibility Kit Services

The current release of the Compatibility Kit includes support of the following calls:

Task related Subroutines:

CreateTask, ActivateTask, GetTaskID, TerminateTask, DeleteTask, ChainTask, GetTaskState

Resource related Subroutines:

CreateResource, GetResource, ReleaseResource, DeleteResource

Event related Subroutines:

SetEvents, ClearEvent, GetEvent, WaitEvent

Interrupt related Subroutines:

EnableInterrupt, DisableInterrupt, GetInterruptDescriptor

Counter related Subroutines:

InitCounter, GetCounterValue, CreateCounter, DeleteCounter

Alarm related Subroutines:

CreateAlarm, GetAlarmBase, SetAbsAlarm, SetRelAlarm, CancelAlarm, GetAlarm, DeleteAlarm

COM related Subroutines:

Complete COM and CAN support is coming soon!

Compatibility Kit Error Handing

There is one "error handling" function defined in tx_osek.c and used throughout the Compatibility Kit, as follows:

osek_internal_error

In general this routine is called when a basic usage error occurs. This may be used as a place to catch errors that are not detected if the application source is not checking the return status. The default processing for this routine is a simple spin loop.

Demonstration System

The file osek_demo.c contains a demonstration system that utilizes OSEK services. This Demo application will demonstrate some of the basic OS objects of OSEK such as: Tasks, Events, and Resources. This demo application should be used as an example of how to integrate the Compatibility Kit into your application.