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From: jdow@gryphon.CTS.COM (Joanne Dow)
Newsgroups: comp.sys.amiga
Subject: Re: The time (my watch has troubles) has come ...
Message-ID: <2025@gryphon.CTS.COM>
Date: Fri, 23-Oct-87 16:23:16 EST
Article-I.D.: gryphon.2025
Posted: Fri Oct 23 16:23:16 1987
Date-Received: Mon, 26-Oct-87 00:38:04 EST
References: <16516@amdahl.amdahl.com> <2572@cbmvax.UUCP>
Reply-To: jdow@gryphon.CTS.COM (Joanne Dow)
Organization: Wizardess Designs
Lines: 37
Summary: Oh but it can be done!

In article <2572@cbmvax.UUCP> daveh@cbmvax.UUCP (Dave Haynie) writes:
>in article <16516@amdahl.amdahl.com>, kim@amdahl.amdahl.com (Kim DeVaughn) says:
>
>> Why aren't these locked to the line frequency, which has very good long-term
>> accuracy, though may suffer from short-term stability?
>
>The OS clock is, or should be, but that only works when the machine is on.  The
>RTC can't be, or it would lose its time base if the power went out or you
>moved the machine.
>
Ah well padnah it can be done. Some years ago I had a clock chip for my
amateur radio station (lost in subsequent moves...) that accepted line
frequency clocks until they died. Then, with a loss of perhaps two or three
clocks, it picked up from an internal clock. Thus I was able to leave it on
continuously and as long as line frequency remained it remained line synched.
Once it was unplugged or the lines went down the local "clock" kept it to
reasonably close time.

Howsosomeever that'd add perhaps a dozen bucks worth of parts and assembly time
to the A2000/A500 and if we do that enough we could price the fool things up
into the Mac levels of the stratosphere.

> /kim
>-- 
>Dave Haynie     Commodore-Amiga    Usenet: {ihnp4|caip|rutgers}!cbmvax!daveh
>   "The B2000 Guy"              PLINK : D-DAVE H             BIX   : hazy
>    "Computers are what happen when you give up sleeping" - Iggy the Cat


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