Re: A89: timer port

To: assembly-89@lists.ticalc.org
Subject: Re: A89: timer port
From: Nathan Mueller <nlmueller@students.wisc.edu>
Date: Wed, 16 Dec 1998 00:06:06 -0600
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <bb5113bb.367747bd@aol.com>
Reply-To: assembly-89@lists.ticalc.org


>In a message dated 12/15/1998 11:00:37 AM Pacific Standard Time,
>assets@eden.rutgers.edu writes:
>
>> I can change the frequency of int 5 by writing a new initial value to
>>  ($600017), right?  But for any value I put to it int 5 only seems to slow
>>  way down.  I am missing something here?
>
>Try putting higher values.  The value is the Hz (Hertz, or frequency), so the
>higher it is, the faster the interrupt will be called.  I'm not sure exactly
>what Hz corresponds to what rate in seconds.
>
>Daniel Imfeld

Hz = cycles/second

If the value is 5 Hz, that means:

5 = 1/time
time = .2s

Quite simple.

	--Nate

References:

Re: A89: timer port

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