I think it would be wiser to modify it for full 8 bits, which can be masked
down to less bits of output easily.
But there would need to be change in the generator too, so that it would go
by more than 1 step at a time when needed, and when going even faster the
generator would output only 4 states (full bipolar drive), and on slowing
down, it would also need a fluent transition. Believe me or not, this is
approximately how some SRM motors work like. Some of those are small, but
mostly you can find only those which run at 400-800A per phase!
And yes, they do use "microstepping" as each one rotates in precision of
micrometers. (they drive circumference of 620mm).
On Sun, Feb 28, 2010 at 1:15 AM, Slavko Kocjancic <[email protected]> wrote:
>
>
> 2010/2/28 Jeff Epler <[email protected]>
>
> On Sat, Feb 27, 2010 at 04:40:24PM +0100, Slavko Kocjancic wrote:
>> > Machine seems to work ok but report is way wrong!
>> >
>> > User step type has 7 phases and 8 steps per cycle! THAT's WRONG
>> > I think should be
>> > User step type has 3 phases and 8 steps per cycle!
>>
>> OK, I corrected this. Besides this problem, the change meets your
>> needs?
>>
>> Jeff
>>
>>
> Yes.
> Thanks....
>
>
> Maybe is not bad idea to make table 16 records (sequences) long, and to
> make all 8 bits usable as phases. (I don't need that but in past I use that)
> and maybe someone else need that and afraid to ask :D
>
> Slavko.
>
>
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