On Sat, Jul 12, 2008 at 10:16 PM, Jon Elson <[EMAIL PROTECTED]> wrote:
> Preben Mikael Bohn wrote:
>>
>> 1) I don't really need the real-time part of EMC as this is taken care
>> of by the electronics (obviously with a latency of ~200 ms but I can
>> live with that). Can EMC be run without a real-time kernel?
>>
> Yes, but why?  All the hard work has already been done.  You can
> STILL use your 200 ms buffer, the RT version of EMC will
> guarantee the buffer will NEVER, EVER go empty.

Which would only be true if EMC had a 422 interface communicating with
the exact same protocol to the board I am using. And since this is not
the case I am really asking either how to make such a module or how to
interface with an external "driver" already doing the protocol work on
the 422 interface.

>  But, if you
> MUST run in user-mode, the sim version of EMC will allow you to
> do that.

I don't care which mode I run in, as long as it gets the job done. :-)
My current program works fine in user-mode, so my initial assumption
is that EMC would to _if_ I knew how to interface to my own "driver".

>> 2) The easiest interface for me would be to have EMC generate the
>> positions and axis directions and provide them to a "driver" I already
>> have implemented. Currently it seems like EMC is generating all the
>> low-level stuff but is it possible to make such a high-level
>> driver-interface instead?
>>
> The HAL pins out of the EMC "front end" just send position as
> floating-point coordinates in "user units", ie. mm or inches.

I don't think I got this?

Best regards Preben

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