Currently the step resolution and encoder resolution are independent (but
stepper use with encoder is not that used much).
When you are going to make the board, could you please post the pricing and
availability too? The other guy who made similar board for PCI (USB is
useless due to unpredictable latencies) was not able to post about pricing
or sale for months after the announcement that they have it ready :(.
On Dec 19, 2007 7:41 PM, Anton Buzinski <[EMAIL PROTECTED]> wrote:
> hello EMC team,
>
> we are working on a stepper controller board in pci and usb format that
> will provide high step rates (upto 5mhz or so). we are trying to figure out
> how the driver might work. could you tell us what api or global variables
> we can use to findout the axis command position for the current cycle and
> the configured number of pulses per unit?
>
> if we use an encoder interface for feedback to emc (instead of just a step
> pulse counter), the encoder resolution may or may not match the motor steps
> per rev. how do we deal with this discrepency? will emc allow user to
> enter both encoder resolution as well as motor step resolution?
>
> thank you
> Anton B.
> www.vitalsystem.com
>
>
>
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