[comp.windows.ms] IRQs above 8 under Win 3

jjr@sgtech.uucp (John Radigan) (06/14/90)

A Windows 3.0 question. Maybe someone has figured this out:

    I am trying to install a comm board that can use IRQs of 3, 4,
10, 11, 12, 15. I set COM3Irq in SYSTEM.INI to proper IRQ and COM3Base
to proper address. I try to use the Terminal accessory to talk to a
terminal connected to the comm board. Windows does not process
interrupts generated by the comm board on any of the IRQs above 9.
The board works fine in interrupt-driven DOS and UNIX applications
running on the same machine (using all IRQs). Board also works fine
under Windows when configured at IRQ 3.

    I called Microsoft Support. After the obligatory 35 minute wait
I explained the setup and was told that "IRQs above 8 may or may not
work, see your documentation".

    Is there an explanation for this ? Any help appreciated.

				Thanx,

				    John 

--
John Radigan, Star Gate Technologies, Solon, Ohio  (216) 349-1860 x666
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