AoU: ETAS_RTACAR_SM_OS_187
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The ETAS_RTACAR_SM_OS_187 AoU provides a list of OS API functions not allowed to be called from Category 2 ISR implementations.

The relevant functions are declared through a macro as in the pattern:

.. code:: C
    
    ISR(<functionname>) {...} 


.. include:: restricted_os_function_common_rationale.rst

.. include:: ../rules/ETAS_RTACAR_SM_OS_187.rst