AVR-Chat

> Seems simple but I can't determine what should be interrrupt-driven
> and what should be polled. Using timers alone for the PWM is out (I
> think) because I need to run six motors. Run the PWM frequency too
> high and I consume all of the cycles checking to see if a motor needs
> to be started or stopped.
Bear with me, I might not explain this well...
When I played with software PWM once, I did it as per attached code.
Basically, I use a timer to generate a master clock, on which I 
increment all the registers holding the PWM counts.  If any hit zero 
or the limit, their respecive bits are set or cleared.  Someone I 
gave the code to fairly recently had it working, I think.
 
> Also need a serial packet protocol to frame the packets. Delay before
> packet? 8th bit set on packet header and limit it to 7-bit data? 
That's how MIDI works.  I've got some code somewhere I used to decode 
some MIDI messages, I think.



Richard
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"Iz dana u dan ona dolazi i odlazi u talasima"
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