On Mon, 9 Oct 2000, Andreas Meyer wrote:
> Am 09-Okt-00 schrieb Fred:
>
> > All Amiga interrupts are shared, since the Amiga doesn't use the
> > brain-damaged IRQ architecture that IBM came up with for the PC. The
> > term "IRQ" is rarely used in reference to Amiga interrupts, but
> > since the X-Surf is really a PC NIC spliced to a bridgeboard, it may
> > be inheriting the "IRQ" term from the PC.
> >
> > Does the G-Force have trouble with Zorro interrupts in general?
>
> I don�t know how to answer or test that yet. I have the G-Force, a
> MFC-III and a PiccoloSD64 built in my A2k. Everything works fine
> without problems. External devices are a steamer, a scanner and
> sometimes another HDD in an external case. No problem with the devices.
> (it seems, there are problems sometimes when writing to the HD-floppy
> or yesterday the machine won�t boot when I added another external
> floppy-drive at the external floppy-port for testing-issues).
>
> Jens sent me another modified MACH especially to work together with
> the G-Force, but I had no luck getting the thing to work.
>
> Is there a tool available to test interrupts?
You need to be able to cause the interrupts in order to tet them, and
that's device-specific. This seems to be one of the things the test
program is doing.
> ---
> This is what Jens said: In the test the chip was initialised in a
> wrong way, it is using an IOBase-address that doens�t exist and an IRQ
> which isn�t wired on the X-Surf (the X-Surf on ISA-side can handle
> IRQ 3, 4 and 5 only).
> The G-Force has such a bad timing on the Zorro-bus, so the chip is to
> slow. (Accelerators in an A2k can interrupt a Zorro-grip? in an early
> state and if the RTL8019 doesn�t bring the datas at the right time we
> find it in our pants...;))
> ---
>
> I�m very sorry for my bad english, but it doesn�t seem to be
> sufficient for technical things like this.
Yeah, I'm afraid that lost too much in the translation for me to make sens
of it. :-)
Fred Wright
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