sorry, forgot the tag:

Francisco Ares wrote:

> Hi all PIClisters.
>
> Can someone point me to an algorithim to do accelaration for a stepper
> motor controller?
>
> My controller uses one timer overflow ISR to switch the phases of the
> motor, so the speed is calculated through the period register of this
> timer.
>
> I need to calculate different values for the period register for a
> constant (or close to constant) acceleration, preferably "on-the-fly",
> inside the same ISR.
>
> My first atempts resulted in that the final speed was never reached
> because of accumulating errors in calculations.
>
> Any hints?
>
> Thank you all.
> Francisco
>
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