Article View: sci.electronics
Article #17562Re: SmartWatctch Help
From: George Robbins
Date: Sun, 10 May 1987 20:21
Date: Sun, 10 May 1987 20:21
19 lines
1586 bytes
1586 bytes
In article <849@killer.UUCP> sentinel@killer.UUCP (The Sentinel) writes:
>
> Hello. I recently picked up a Dallas Semiconductor SmartWatch, and
> installed it in my Commodore 128. This is a "no-slot clock" which plugs
> into the board underneath a ROM, and is transparent until you need it.
>
> However, I have a problem. It won't do anything. No matter what I do
> I can't access it.
My understanding is that these devices require some ritual address sequence
to become activated. You may need to write a machine language subroutine
to access the clock, since accessing from basic would involve other possible
ROM accesses. Also check that the pin-out expected by the clock device is
compatible with the C128 ROM socket...
--
George Robbins - now working for, uucp: {ihnp4|seismo|rutgers}!cbmvax!grr
but no way officially representing arpa: cbmvax!grr@seismo.css.GOV
Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!cbmvax!grr From: grr@cbmvax.cbm.UUCP (George Robbins) Newsgroups: sci.electronics,comp.misc,comp.sys.cbm Subject: Re: SmartWatctch Help Message-ID: <1860@cbmvax.cbmvax.cbm.UUCP> Date: Sun, 10-May-87 16:21:40 EDT Article-I.D.: cbmvax.1860 Posted: Sun May 10 16:21:40 1987 Date-Received: Mon, 11-May-87 03:09:08 EDT References: <849@killer.UUCP> Reply-To: grr@cbmvax.UUCP (George Robbins) Organization: Commodore Technology, West Chester, PA Lines: 19 Keywords: Dallas Semiconductor SmartWatch C-128 6502