[Oberon] OberonStation and PS/2

[Jörg]

Hi all

Independent on PS2 or USB (I use the green USB-to-PS2 adapter for the mouse
as well), both keyboard and mouse are generally BIDIRECTIONAL devices.

The ProjectOberon uses mouse and keyboard only as INPUT devices.
- The Oberon side of the device drivers do not allow to write something to
the devices.
- And the Verilog side of the device driver has some "ugly" code to write
the magic string to the mouse for successful initialization.

Jörg

-----Original Message-----
From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of Paul
Reed
Sent: Dienstag, 3. November 2015 18:05
To: Jan de Kruyf <jan.de.kruyf at gmail.com>
Cc: ETH Oberon and related systems <oberon at lists.inf.ethz.ch>
Subject: Re: [Oberon] OberonStation and PS/2

Sorry Jan, but that is misleading, please be careful.  My research
indicates that these passive adapters work only with USB keyboards and
mice which were designed to use them: not all USB devices are convertible
in this way.  Older ones may work if you are lucky - hence YMMV.

 > google is your friend:
>
>
http://www.amazon.co.uk/Converter-Keyboards-Genuine-CPO-Branded/dp/B0021JPYM
W
>
> j.
>
>
> On Tue, Nov 3, 2015 at 6:54 PM, Paul Reed <paulreed at paddedcell.com> wrote:
>
>> Hi Eric,
>>
>> > Unfortunately, for me, I no longer have any PS2 keyboards or mice. All
>> of
>> > mine are now USB.
>> > Does anyone have experience with using a USB keyboard or mouse with
>> the
>> > OberonStation? Does it work well? What kind of adapter do you use?
>>
>> Of course PS/2 was chosen because it is much simpler to explain and
>> implement than USB.
>>
>> Older USB keyboards and mice which came with PS/2 adapters are your best
>> bet, but your mileage will certainly vary.   I noticed Prof. Wirth
>> himself
>> uses one of these keyboards, with an adapter which happened to come from
>> a
>> mouse (I assume, because it is green).
>>
>> If you can't find cheap PS/2 mice and keyboards at computer faires or
>> recycling centres, a new pair (e.g. Genius) can usually be obtained on
>> Amazon for around $10, Eur10 or GBP10 :)
>>
>> Hope that helps,
>> Paul
>>
>>
>> --
>> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
>> https://lists.inf.ethz.ch/mailman/listinfo/oberon
>>
>


--
Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
https://lists.inf.ethz.ch/mailman/listinfo/oberon
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