Re: Peeks and Pokes

[TWS <adoyson@nccn.net>]

There was an AE clock for the IIc that you plug into the serial port.

There is also a "NO-slot-Clock" that you can buy for about $15 from
Alltech.  I have heard you can stick one of these chips in a IIc no problem.



Chad Choi Lin wrote:

> Chris Doubleday wrote:
>
> > I am evaluating the IIc as a controller for a home automation
> > project. In order to work, the IIc will need to communicate with
> > an external serial device using timed reads (or equivalent).
> >
> > I have found the peek address for examining the keyboard input
> > buffer and the poke address to indicate the byte was read from
> > the keyboard buffer.
> >
> > I need to find the corresponding peek/poke for reading from the
> > serial port. A complete list of peek addresses and poke values
> > would be ideal.
>
> From the plentiful replies recommending that you track down a
> ready-to-use solution, you probably wouldn't need that list of PEEKs and
> POKEs after all. *However*, if you are the sort of person who relishes
> the challenge of writing your own software, I would be more than happy
> to provide you with the necessary data -- and I've got no less than
> three different technical reference books to back me up (including
> Apple's official //c Tech Ref Manual)! So just say the word, and I'll
> give you as much data as you want.
>
> > Also, does the IIc support a date/time clock?
>
> Yes, it does.... IF you have the right equipment. Although ProDOS comes
> with built-in support for time and date stamping, the //c has no
> standard facility for installing a clock card or an equivalent
> time-keeping mechanism. However, I remember seeing magazine ads in the
> eighties (ah, the golden age of the Apple II!) for an Applied
> Engineering product for the //c. It was -- get this -- a combination
> power supply and time/date-keeping device! I never actually tried it,
> and don't ask me how the devil it would have worked (the picture of the
> device showed no connections other than the AC cord and power output
> cable), but it was the only hardware solution I've ever seen for giving
> time-keeping capability to a //c. Perhaps someone else out there could
> share more info with us on this thing?
>
> Then again, if all you want is to have your ProDOS disk catalogs show
> something other than <NO DATE> all the time, you can simply use a
> program to manually set the date/time machine status bytes in the ProDOS
> global pages. For example, the ProDOS User's Disk contains a utility for
> doing this (however, I do not believe it ever shipped with the //c as
> part of the included software). Again, I have the technical details on
> hand (thanks to yet another reference manual) should you ever need them.
>
> A final note: the word processor MouseWrite supposedly contains a
> *software-implemented* clock and calendar! I don't know if it is still
> available, but that program was offered by Roger Wagner Publishing, Inc.
> Once more, we could use any help from other forum members out there to
> shed further light on the subject.
>
> I hope I was of some help to you and, whatever you decide to do, good
> luck!
> --
> Peace, Love, and Apple II Forever!
> Chad Choi Lin
> chadlin@nyetcom.com
>
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