National Instruments 321042A-01 사용자 설명서
Chapter 2
Hardware Configuration and Installation
© National Instruments Corp.
2-9
STD-GPIB for Windows
Selecting the Interrupt Request Line
STD/STD32 computers have a series of interrupt lines available to devices. Some of the
interrupt lines reside in the backplane, and the others are available through a 10-pin
frontplane connector. Devices use interrupts to get immediate service from the CPU for
asynchronous events. Your GPIB hardware and the NI-488.2 software use interrupts to
get service from the CPU when necessary.
interrupt lines reside in the backplane, and the others are available through a 10-pin
frontplane connector. Devices use interrupts to get immediate service from the CPU for
asynchronous events. Your GPIB hardware and the NI-488.2 software use interrupts to
get service from the CPU when necessary.
The STD-GPIB is shipped with interrupts disabled. If you want to select an interrupt
setting for the STD-GPIB, follow these steps to reconfigure the interrupt request line:
setting for the STD-GPIB, follow these steps to reconfigure the interrupt request line:
1.
Choose a new interrupt request line (IRQ) setting.
If you are installing the STD-GPIB into a Ziatech STD32 AT-compatible computer,
you can configure it to use any of the following interrupt lines: IRQ5, 6, 9, 10, 11,
12, 14, or None. If you are installing the STD-GPIB into a WinSystems
AT-compatible computer, you can configure it to use any of the following interrupt
lines: IRQ5, 7, 9, 10, 11, 12, 14, 15, or None. You may not want to select interrupt
lines 6 or 14, because interrupt line 6 is typically used by the diskette drive controller
and interrupt line 14 is used by the hard disk drive controller on most systems.
you can configure it to use any of the following interrupt lines: IRQ5, 6, 9, 10, 11,
12, 14, or None. If you are installing the STD-GPIB into a WinSystems
AT-compatible computer, you can configure it to use any of the following interrupt
lines: IRQ5, 7, 9, 10, 11, 12, 14, 15, or None. You may not want to select interrupt
lines 6 or 14, because interrupt line 6 is typically used by the diskette drive controller
and interrupt line 14 is used by the hard disk drive controller on most systems.
If you are installing more than one STD-GPIB, each module must either use a unique
IRQ level or not use interrupts at all.
IRQ level or not use interrupts at all.
2.
Find the jumpers at W1 and W2 that set the interrupt request line. Refer to the parts
locator diagram, Figure 2-3.
locator diagram, Figure 2-3.
3.
Change the jumper settings to configure the STD-GPIB to the new interrupt request
line.
line.
To select interrupt lines for a Ziatech STD32 computer, refer to the labels on the left
side of the jumpers, as shown in Figure 2-5. To select interrupt lines for a
WinSystems computer, refer to the labels on the right side of the jumpers, as shown
in Figure 2 -6. To disable interru pts, use the jumper setting shown in Figure 2-7.
side of the jumpers, as shown in Figure 2-5. To select interrupt lines for a
WinSystems computer, refer to the labels on the right side of the jumpers, as shown
in Figure 2 -6. To disable interru pts, use the jumper setting shown in Figure 2-7.
If you are using the STD-GPIB in a computer that is not manufactured by Ziatech or
WinSystems, or if the computer is not an AT-compatible, find out which interrupt
source corresponds to the interrupt request line you want to use for that computer,
and then consult Appendix B, Interrupt Routing, for the proper jumper settings.
WinSystems, or if the computer is not an AT-compatible, find out which interrupt
source corresponds to the interrupt request line you want to use for that computer,
and then consult Appendix B, Interrupt Routing, for the proper jumper settings.