Re: bridgeport IO, spindle enable pin

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

On Saturday 10 May 2003 10:59 am, you wrote:
> On Saturday 10 May 2003 10:19, you wrote:
> > The S setting helped a lot.   From manual or MDI,  M3 M4 will work
> > fine as long as S is set>0.  I see the brake release and the spindle
> > CW (or CCW) bit flip.  Still not getting the "spindle on" bit to
> > flip, but having the other 3, that gives me enough to get a
> > relay box working for the spindle.
>
> I don't think there is a "spindle on" bit. Just SPINDLE_FORWARD and
> SPINDLE_REVERSE. Is there a reference in the .ini file, documents, or code
> to "spindle on"? If so, we either need to fix it or get rid of it ;) .

This may be a reference to that "analog(ue)" pin that someone suggested might 
have been a pwm spindle speed thing at one time.

-----snipped of emc.ini----
; analog out bits
SPINDLE_ON_INDEX          =     3
-----end-----

If you really needed a spindle on signal as well as forward or reverse, the 
brake pin could be used.  It can be made to turn on as soon as m2 or m3 is 
issued and off as soon as m4.  You could also tweak 

; wait times in seconds for spindle brake, release
SPINDLE_OFF_WAIT          =     1.0
SPINDLE_ON_WAIT           =     1.5

for the relationship between the brake pin comming on and the forward or 
reverse signal.  

You can see these relationships if you are running IO_Show with bridgeportio 
and bridgeporttask.  

Ray