• USB for A5000?

    From Chris Evans (CJE/4D)@21:1/5 to All on Tue Jun 2 10:54:49 2020
    A customer wants a USB for an A5000 so he can use a USB Mouse & Keyboard via
    a KVM.

    He's tried a Castle USB podule but that doesn't work.

    Anyone tried a Simtec USB Podule on RISC OS 3.1?

    I know Unipod has issues with 3.7 so doubt it would work and would be a very expensive option.

    Chris Evans

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  • From Theo@21:1/5 to chris@cjemicros.co.uk on Tue Jun 2 14:34:01 2020
    "Chris Evans (CJE/4D)" <chris@cjemicros.co.uk> wrote:
    A customer wants a USB for an A5000 so he can use a USB Mouse & Keyboard via a KVM.

    He's tried a Castle USB podule but that doesn't work.

    Anyone tried a Simtec USB Podule on RISC OS 3.1?

    I know Unipod has issues with 3.7 so doubt it would work and would be a very expensive option.

    There's a couple of issues:

    - whether the USB podule supports IOC podule mode (4KiB address space), or whether it uses the RiscPC's EASI podule space (16MiB). I'd have to dig out
    a podule to have a look

    - whether the software stack works. Before the RISC OS 6 branch (Adjust
    etc), the Simtec stack uses PointerV to inject mouse events. That's a RISC
    OS 3.5 interface I think. I'm not sure what it does for keyboard.

    I think it's probably not going to work.

    For a mouse they could try a SmallyMouse.

    For keyboard, you need something that uses the KATN keyboard protocol used
    by Archimedes machines.
    It appears there are adapters from PS/2 to KATN: https://stardot.org.uk/forums/viewtopic.php?t=9334
    and then you could use another adapter from USB to PS/2

    Alternatively I think there's some support for serial mice in RISC OS 3.1

    Theo

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