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ploc_mtx
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ER ploc_mtx (ID mtxid);
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ID mtxid;
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ID number of the mutex to be locked.
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This service call locks the mutex specified by parameter
mtxid.
If the target mutex could not be locked (another task has been locked) when this service call is issued but E_TMOUT is returned.
Note In the RI850V4, E_ILUSE is returned if this service call is re-issued for the mutex that has been locked by the invoking task (multiple-locking of mutex).
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- mtxid > Maximum ID number
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- This service call was issued from a non-task.
- This service call was issued in the CPU locked state.
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Illegal service call use.
- Multiple locking of a mutex.
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- Specified mutex is not registered.
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- The target mutex has been locked by another task.
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