Difference between revisions of "Mutex"
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A Mutex ('''Mut'''ual '''Ex'''clusion) is a method used to gain exclusive rights to use a shared resource in programming. Often used when designing software in [[embedded system]]s using [[interrupt]]s and/or [[RTOS]]. | A Mutex ('''Mut'''ual '''Ex'''clusion) is a method used to gain exclusive rights to use a shared resource in programming. Often used when designing software in [[embedded system]]s using [[interrupt]]s and/or [[RTOS]]. | ||
Latest revision as of 13:22, 24 March 2012
Under ConstructionA Mutex (Mutual Exclusion) is a method used to gain exclusive rights to use a shared resource in programming. Often used when designing software in embedded systems using interrupts and/or RTOS.
Example
In a interrupt driven embedded system there are two devices connected to a CAN bus. Two independent software routines communicate independent of each other with Device A and Device B through a shared CAN bus. See drawing below.
ARM Thumb
References
- ↑ The definitive guide to the CORTEX-M3, Second edition - section 10.6 page 177 (ISBN978-1-85617-963-8)
- ↑ ARM Assembler reference section 3.3.13 page 3.39