Elo TouchSystems DOS and Windows Driver Disk, Руководство пользователя

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Controller Data Sheets 75
For 286/386/486's or later, IRQ5 (LPT2) is highly recommended. Since the BIOS
does not use interrupts when outputting to a printer and most software uses the
BIOS for printer output, you can jumper your PC-Bus touchscreen controller for
IRQ5 without contending with LPT2. On XT-type systems, IRQ7, LPT1, is highly
recommended for the same reasons.
If necessary, choose a COM port IRQ. ELODEV eliminates the interrupt conflict
by disabling the interrupt line drivers of the COM ports while the touchscreen is
in operation. A COM port can be used simultaneously only if the COM port is
polled by the application or accessed strictly through the BIOS.
Programmers: If the selected IRQ contends with LPT1 or LPT2, ELODEV saves
the state of the Interrupt Enable bit on the parallel port controller when
OpenTouch is called. ELODEV then disables the parallel port interrupt and takes
over the interrupt for the touchscreen controller. The original state of the bit and
interrupt vector are restored when CloseTouch is called. The same technique
works with a COM port. Applications may use a contending COM or LPT port
simultaneously, but only in polled mode.
C
ONTROLLER
D
ATA
S
HEETS
Data for each controller begins on a new page. The controllers are listed in the
following order:
Controller Page
IntelliTouch Serial Controller (E281-2300) 77
IntelliTouch Serial Controller (E281{A}-4002) 78
AccuTouch Serial Controller (E271-2210) 79
AccuTouch and DuraTouch Serial Controller (E271-2200) 80
AccuTouch Serial Controller (E271-140) 81
DuraTouch Serial Controller (E261-280) 82
IntelliTouch PC-Bus Controller (E281-4035) 83
IntelliTouch PC-Bus Controller (E281{A}-4025) 85
AccuTouch and DuraTouch PC-Bus Controller (E271-2201) 87
AccuTouch PC-Bus Controller (E271-141) and DuraTouch PC-Bus
Controller (E271-142) 88
AccuTouch and DuraTouch Micro Channel Controller (E271-2202) 90
If you cannot identify your controller from the list above, see the cross-reference
chart for obsolete part numbers on page 6.
NOTE
When XT disk controllers are installed in AT type systems, IRQ5 is not available.