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stp_cyc

istp_cyc

Outline
Stop cyclic handler operation.
C format
 ER      stp_cyc (ID cycid);
 ER      istp_cyc (ID cycid);
Parameter(s)
I/O
Parameter
Description
I
 ID      cycid;
ID number of the cyclic handler.

Explanation
This service call moves the cyclic handler specified by parameter cycid from the operational state (STA state) to non-operational state (STP state).
As a result, the target cyclic handler is excluded from activation targets of the RI600PX until issuance of sta_cyc or ista_cyc.
Note This service call does not perform queuing of stop requests. If the target cyclic handler has been moved to the non-operational state (STP state), therefore, no processing is performed but it is not handled as an error.
Return value
Macro
Value
Description
E_OK
0
Normal completion.
E_ID
-18
Invalid ID number.
- cycid < 0
- cycid > VTMAX_CYH
E_CTX
-25
Context error.
- This service call was issued in the CPU locked state.
- This service call was issued in the status "PSW.IPL > kernel interrupt mask level".
Note When the istp_cyc is issued from task or the stp_cyc is issued from non-task, the context error is not detected and normal operation of the system is not guaranteed.
E_NOEXS
-42
Non-existent object.
- The cyclic handler specified by cycid does not exist.