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SCIOPTA - Real-Time Kernel

10-2 Manual Version 4.1 User’s Manual

SCIOPTA - Real-Time Kernel

10 Error Handling

10.3 Error Hook

In SCIOPTA all error conditions will end up in the error hook. As already stated there are two error hooks availa-

ble: the Module Error Hook and the Global Error Hook.

An error hook can only use the following system calls:

(Please consult the SCIOPTA - Kernel, Reference Manual for detailed description of the SCIOPTA system calls.)

sc_miscCrc Calculates a 16 bit CRC over a specified memory range.

ssc_miscCrcContd Calculates a 16 bit CRC over an additional memory range.

sc_miscErrnoGet Returns the process error number (errno) variable.

sc_moduleIdGet Returns the ID of a module.

sc_moduleInfo Returns a snap-shot of a module control block (mcb).

sc_moduleNameGet Returns the name of a module.

sc_poolIdGet Returns the ID of a message pool.

sc_poolInfo Returns a snap-shot of a pool control block.

sc_procPpidGet Returns the process ID of the parent (creator) of a process.

sc_procPrioGet Returns the priority of a prioritized process.

sc_procSliceGet Returns the time slice of a timer process.

sc_procVarDel Removes a process variable from the process variable data area.

sc_procVarGet Returns a process variable.

sc_procVarSet Defines or modifies a process variable.

sc_tickGet Returns the actual kernel tick counter value.

sc_tickLength Sets the current system tick length in micro seconds.

sc_tickMs2Tick Converts a time from milliseconds into system ticks.

sc_tickTick2Ms Converts a time from system ticks into milliseconds.

sc_triggerValueGet Returns the value of a process trigger.

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CompuLab SBC-X270 Manual de usuario Pagina 82