Re: Homing STG-now working

[Ray Henry <rehenry-at-up.net>]

Hi Paul.

I believe that the key to the extra io is in the notion that none of the 
the port address that represents them are used by the realtime stuff.  
With steppermod and freqmod, if no change is to be written, the realtime 
ignores those addresses.  I'm guessing that stg does the same.

I have been able to use the extra four parport pins left from a four axis 
machine to run estop, cool, spind for and rev with a hacked up tkio that 
just overlaps the third address of the parport.

Ray


On Friday 30 August 2002 07:11 pm, you wrote:
> Hi Kurtis
>
> Great news indeed - The changes have been committed to Sourceforge and
> to the next BDI sources. I should have spotted my mistake sooner.
>
> There is not too much work involved in putting together an IO
> controller to use some of the spare STG IO pins. Just need to verify
> that the unused outputs not used in a four axis machine will conflict
> with the realtime IO. In all probability, it may require some minor
> changes to the STG driver so that one port at least can be used for
> digital outputs.
>
> Regards, Paul.
>
> On Friday 30 Aug 2002 11:54 pm, Kurtis Martineau wrote:
> > Now...there was some talk a little while back about being able to use
> > the stg card for e-stop, lube, coolant, etc, instead of the ppt.  Is
> > this currently being developed?