ThreadX for StrongArm

Highlights

• Complete StrongARM support
• Complete StrongARM 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 StrongARM Development

Let our extensive experience with the StrongARM 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.

StrongARM Optimizations

ThreadX optimizes context switching on the StrongARM. 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.

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.

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