Messages in this thread | | | Date | Tue, 16 Mar 1999 02:01:11 +0100 | From | Edgar Toernig <> | Subject | Re: ioport conflict with "dma page reg" (0x80) |
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Hi,
Wall, Tim wrote: > > I have a single-board computer with a hardware watchdog which uses I/O > addresses 0x80, 0x443, and 0x444. > > The problem is that something else in the system is writing to 0x80, > which resets/disables the watchdog.
0x80 is sometimes used as a dummy port. Try changing the SLOWN_DOWN_IO macro in io.h (defining SLOW_IO_BY_JUMPING should be enough). And floppy.h also contains (in 2.2.x unused) code that writes to port 0x80.
Ciao, ET.
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