Re: FPGA for PCI based servo control board

[Jon Elson <elson-at-pico-systems.com>]

John Kasunich wrote:

>
> Robin Szemeti wrote:
>
>> I'm just confused by the whole thread really.
>>
>> What it seems to boil down to is this:
>>
>> EMC works fine, but for high pulse rate applications its give the CPU a
>> hard time, so offloading that to an external device would be a good 
>> plan.
>
>
> Yes.
>
>> Jon has already done this with his external stepper driver boards and
>> found the market to be in the region of 5 a year ho hum.
>
>
> Sad but true.  However it is fixed at four pulse outputs, four encoders,
> and a fixed set of digital I/O.  I'd buy it myself, but I want more 
> flexibility. 

No, it is expandable.  You can daisy-chain the boards.

Jon