ThreadX for Arm

Highlights

• Complete ARM support, including ARM7, ARM9, ARM10, ARM11, Thumb, Atmel, StrongARM, XScale
• Complete ARM Development Tool Choices - ARM RealView, IAR, Green Hills MULTI, Lauterbach, Metrowerks, MetaWare, EPI, and GNU
• 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 (1.7us context switch@40MHz)

Improve Your ARM Development

Let our extensive experience with the ARM 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.

ARM Optimizations

ThreadX optimizes context switching on the ARM. 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 v1-v7, fp, and lr.

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 a1-a4). The full register set is saved only if thread preemption is required.

Easy Mixed-Mode Programming

ThreadX fully supports the 16-bit Thumb extensions of the ARM architecture. Using ThreadX, developers can freely build their applications in Thumb and/or traditional 32-bit mode.

Flexible FIQ Interrupt Handling

By default, ThreadX leaves FIQ interrupts alone. This results in zero FIQ interrupt latency. However, in this configuration application FIQ processing is not allowed to call ThreadX services. ThreadX can also be configured to provide complete FIQ-support, which provides the application FIQ handler access to ThreadX services.

Nested Interrupt Handling

ThreadX can also be configured to support nested interrupt handling - for both IRQ and FIQ interrupt sources.

Evaluation Board Support

ThreadX demonstrations are available for all major evaluation platforms, including ARM's Evaluator-7T and Integrator boards.

Development Tool Choices

ThreadX is integrated with all the major ARM development tools, including ARM RealView, IAR, Green Hills MULTI, Lauterbach, Metrowerks, MetaWare, EPI, and GNU. Additional ThreadX-aware debugging is available with ARM's RealView, IAR's C-SPY, Lauterbach's TRACE32, and Green Hill's MULTI.  Please visit the following links for more information on ThreadX-aware integration with these products:

ARM's RealView for ThreadX
IAR's C-SPY for ThreadX
Green Hills MULTI for ThreadX
Lauterbach's TRACE32 for ThreadX