IRAMX-drv-v2 as a driver board, and res with the stm32f4discovery.
The video is only at 160V.
If we met in Stuttgart, it is the same hardware, running at higher voltage, and 
improved software.
I am currently developing new hardware.

Rene

> On 21 Nov 2014, at 09:39, Marius Liebenberg <mar...@mastercut.co.za> wrote:
> 
> Hi Rene
> Very interesting work you have done there. Which one of the hardware 
> options is used in the video demonstration?
> 
> On 2014-11-21 03:56, Rene Hopf wrote:
>>> On 20 Nov 2014, at 19:14, andy pugh <bodge...@gmail.com> wrote:
>>> 
>>> On 20 November 2014 17:56, Kirk Wallace <kwall...@wallacecompany.com> wrote:
>>>> I seem to recall, to get fast PWM, I had to use Timer1 and not use the
>>>> Arduino PWM library. I wonder if the resolver decoder might be improved
>>>> in a similar fashion? I haven't had the time to study Andy's code, but
>>>> it may already be optimized.
>>> It is all driven by interrupts and direct register writes, it doesn't
>>> use any Arduino libraries at all, not for PWM generation, not for
>>> analogue reading and not even for computing the arctan.
>>> (it uses an integer-only algorithm and a lookup table)
>>> 
>>> http://wiki.linuxcnc.org/uploads/Resolver.pde
>> My servo amp has a very good resolver interface, featuring 10kHz excitation 
>> with driver(8Vpp signal, to reduce noise), lowpass filter, and 12 bit 
>> resolution.
>> included are eagle files, spice simulation, and code.
>> It could be used to make a converter to other interfaces, or you can just 
>> use the whole project to drive your servos.
>> It has even got a hal implementation to configure things at runtime.
>> 
>> https://github.com/rene-dev/stmbl
>> 
>> Rene
>> 
>> 
>>> 
>>> -- 
>>> atp
>>> If you can't fix it, you don't own it.
>>> http://www.ifixit.com/Manifesto
>>> 
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> 
> -- 
> 
> Regards /Groete
> 
> Marius D. Liebenberg
> +27 82 698 3251
> +27 12 743 6064
> QQ 1767394877
> 
> 
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