Technical description Chapter 8
APCI-/CPCI-1500
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These error data are available through an interrupt routine.
See API functions: i_APCI1500_SetBoardIntRoutineXX,
i_APCI1500_ResetBoardIntRoutine.
Fig. 8-4: Protection circuitry for the outputs
8.2.3 Interrupt
The board has an interrupt line. An interrupt line of the PCI bus is allocated to the
board through the BIOS.
Possible interrupt sources
:
- Event 1 has occurred (input 1-8),
- Event 2 has occurred (input 9-14),
- Counter/Timer 1 has run down
- Counter/Timer 2 has run down
- Counter/Timer 3 has run down
- Watchdog has run down, the outputs are reset,
- Voltage error (the external voltage supply has dropped below 5 V),
- Short-circuit error, overtemperature error.
The interrupt source information are available on the user program through an
interrupt routine
See API functions: i_APCI1500_SetBoardIntRoutineXX,
i_APCI1500_ResetBoardIntRoutine.
An
event
indicates a change of status (level):
- on an input (ex. "0"
Æ
1")
- or on several inputs if a logic has been defined between the inputs.
Running-down:
if the counter changes from 1
Æ
0.
