🚀 go-pugleaf

    I'm still trying to install my own timer, and stumbled over the
    'fact', that the system's timer ('C') is said to generate a 200hz-
    interrupt... As far as I can see it's installing procedure uses a
    division factor of 64 (decimal, I suppose), and a counter that's
    set to 192 (C0 hex). IF I believe my documentation which says that
    the MFP 68901 uses a 4Mhz - clock cycle, then what? All the divisions
    mentioned above wouldn't at all generate a 200hz-interrupt. Am I
    wrong? What I need are the data and control values for getting a
    one-millisecond resolution.
    Any suggestions?
    Yours in advance, Klaus.

A 200hz interrupt has a 5 millisecond period.  The numbers you give
are not far off, if the '64' is interpreted as a hex number (= 100 decimal),
for then the timer would interrupt every 100*192 clock cycles, or every
19.2/4 = 4.8 milliseconds.

--Mike Fischer 
  Arpanet: <fischer@yale.arpa>
  Bitnet:  <fischer@yalecs>

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