SynthModules

I experimented with the timer registers and finally got an accurate
time.

I set TCRW to $B0 which should clear the timer on match and divide
the main clock by 8.  This should clock the counter at 2 MHz.  I set
GRA to 2000 so that 2MHz/2000 should result in 1 mS interrupts.

However, if I set GRA to 2001 then the time count is accurate (at
least after several hours).  I rechecked the documentation and it
looks like 2000 should work.  Go figure.  I'll leave it at 2001.

Dave

--- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:
> It seems to gain about 2 seconds or so an hour.  I'm using
> 1 mS interrupts to keep track of the time.  Anyone know the
> exact frequency of the the master clock for the AtomPro?  My
> other idea is that perhaps my clock divisor is off by 1.