86 lines
2.9 KiB
ReStructuredText
86 lines
2.9 KiB
ReStructuredText
.. _cmsis_rtos_v2:
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CMSIS RTOS v2
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##########################
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Cortex-M Software Interface Standard (CMSIS) RTOS is a vendor-independent
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hardware abstraction layer for the ARM Cortex-M processor series and defines
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generic tool interfaces. Though it was originally defined for ARM Cortex-M
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microcontrollers alone, it could be easily extended to other microcontrollers
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making it generic. For more information on CMSIS RTOS v2, please refer to the
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`CMSIS-RTOS2 Documentation <http://www.keil.com/pack/doc/CMSIS/RTOS2/html/index.html>`_.
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Features not supported in Zephyr implementation
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***********************************************
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Kernel
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osKernelGetState, osKernelSuspend, osKernelResume, osKernelInitialize
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and osKernelStart are not supported.
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Mutex
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osMutexPrioInherit is supported by default and is not configurable,
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you cannot select/unselect this attribute.
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osMutexRecursive is also supported by default. If this attribute is
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not set, an error is thrown when the same thread tries to acquire
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it the second time.
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osMutexRobust is not supported in Zephyr.
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Return values not supported in the Zephyr implementation
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********************************************************
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osKernelUnlock, osKernelLock, osKernelRestoreLock
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osError (Unspecified error) is not supported.
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osSemaphoreDelete
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osErrorResource (the semaphore specified by parameter
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semaphore_id is in an invalid semaphore state) is not supported.
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osMutexDelete
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osErrorResource (mutex specified by parameter mutex_id
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is in an invalid mutex state) is not supported.
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osTimerDelete
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osErrorResource (the timer specified by parameter timer_id
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is in an invalid timer state) is not supported.
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osMessageQueueReset
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osErrorResource (the message queue specified by
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parameter msgq_id is in an invalid message queue state)
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is not supported.
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osMessageQueueDelete
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osErrorResource (the message queue specified by
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parameter msgq_id is in an invalid message queue state)
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is not supported.
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osMemoryPoolFree
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osErrorResource (the memory pool specified by
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parameter mp_id is in an invalid memory pool state) is
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not supported.
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osMemoryPoolDelete
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osErrorResource (the memory pool specified by
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parameter mp_id is in an invalid memory pool state) is
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not supported.
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osEventFlagsSet, osEventFlagsClear
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osFlagsErrorUnknown (Unspecified error)
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and osFlagsErrorResource (Event flags object specified by
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parameter ef_id is not ready to be used) are not supported.
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osEventFlagsDelete
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osErrorParameter (the value of the parameter ef_id is
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incorrect) is not supported.
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osThreadFlagsSet
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osFlagsErrorUnknown (Unspecified error) and
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osFlagsErrorResource (Thread specified by parameter
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thread_id is not active to receive flags) are not supported.
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osThreadFlagsClear
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osFlagsErrorResource (Running thread is not active to
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receive flags) is not supported.
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osDelayUntil
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osParameter (the time cannot be handled) is not supported.
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