Re: NadaNet on Laser 128?

On Apr 30, 4:13 am, "Michael J. Mahon" <mjma...@xxxxxxx> wrote:
schmidtd wrote:
On Apr 29, 11:13 pm, "Michael J. Mahon" <mjma...@xxxxxxx> wrote:

Bill Garber wrote:

<aiiad...@xxxxxxxxx> wrote in message
news:d477351b-6af6-496c-90f3-06a30d5005fd@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

will it work?  I have 4 of them sitting here

I guess I'll try and let you know..

Rich

If you find all of the signals inside that are missing from the
joystick/mouse port,
then,             YES!!!!!!!!!!!!!!!!!!!!!!         they should work.
Otherwise, no.

Michael, feel free to jump in here.  :o))))))))))))

Yes, that's the issue with "compact" machines--if they don't have
the annunciators (which were on the internal 16-pin game port), then
they can't "talk".

I've considered an implementation that would use the speaker port for
a digital output and a pushbutton for an input; however, that would
not only re-use an output that is widely used (for sounds), but any
network activity would also sound quite raucus.  ;-)

On the IIc and IIc+, the IOU is different, so you can't even tap
into the annunciator signals internally (they are re-used as soft
switches).

I'm less familiar with the Laser 128--maybe the annunciators are
still there...

NadaNet uses annunciator 1 and PB 1 for output and input.

The signals listed in the 128 book for joysticks are:
1 - SW1 - game switch 1
2 - +5 volt
3 - ground
4 - reserved
5 - GAME0 - game paddle 0
6 - N.C. - no connection
7 - SW0 - game switch 0
8 - GAME1 - game paddle 1
9 - reserved

Is it also a mouse port, as with the IIc?
Here's what they say about the port, used with a mouse:
1 - MOUSE SIGNATURE
2 - +5 volts
3 - ground
4 - X DIR - X direction of mouse
5 - X INT - X interrupt of mouse
6 - N.C. - no connection
7 - MOUSE BUTTON
8 - Y DIR - Y direction of mouse
9 - Y INT - Y interrupt of mouse
.

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