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ThreadX for ARM7
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 The ThreadX Real-Time Operating System is a highly efficient, robust,
royalty-free kernel designed for deeply embedded applications requiring a small footprint and rapid real-time response.
ThreadX provides super-fast context switching times while giving developers a rich set of services to use for task
control and communication. ThreadX is fully integrated with Green Hills Software's MULTI® Integrated
Development Environment, providing Optimizing Compilers, Source Debugger, Graphical Project Builder and
many other powerful tools for development of embedded applications.
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| Highlights |
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Complete ARM7 family support |
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Advanced preemption-threshold technology |
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Compatible with Version 3-4 |
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Low-overhead Application Timers |
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Reasonable pricing |
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Size scales automatically |
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Complete ANSI C source code |
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picokernel architecture for size and speed |
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Royalty-Free |
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Small footprint
(sizes in bytes):
- Instruction area size 4-25K
- Global data area 696
- Thread control block 144
- Queue control block 44
- Event Flag control block 28
- Timer control block 56
- Semaphore control block 32
- Block Memory control block 48
- Byte Memory control block 52 |
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Easy to use and powerful services |
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Responsive Technical Support |
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Unlimited Threads, Queues, Event Flags, Timers, Semaphores, Block Pools, and Byte Pools |
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Flexible memory usage |
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Timeout available on all thread suspension |
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ARM7 Optimizations
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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.
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Fast FIQ Interrupt Response
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FIQ interrupts are left completely enabled throughout ThreadX processing, resulting in the fastest possible response.
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Improve Your Embedded Development
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Let our extensive experience with the ARM family of microprocessors help your product development. The ThreadX 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.
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context switch 4.8us
