68300

Eric McRae - Electro-Logic Machines, Inc.
511 Root St.,  Port Townsend WA, 98368
Phone/Fax: 360.379.0969, http://www.elmi.com
 wrote a timer32 that we use.

Rod Niner
GSE Scales
42860 Nine Mile Road
Novi, MI 48375-4122
ph: 248.596.3350
rod.niner@...

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<aage@...> 
12/03/2003 06:40 PM
Please respond to
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Subject
[68300] 32 bit timer on TPU on 68376






Hello List,

I am trying to write a 32 bit timer routine in TPU microcode for the TPU 
in a 68376.

I seem to be having a timing problem when a match = $0000 (MRL = 1) and 
the micro instruction 

p:= ert;
ram p -> @LYD_TIMER_B.

For my application I need a high resolution (200nS) and measurements down 
to .1Hz.

Has anybody been able to implement a 32 bit timer on the TPU to measure 
frequency.

I would like to hear from somebody who any knowledge on the subject.

Aage Christoffersen
Lydatronic
Brisbane, QLD
Australia

aage@...

 

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