one button multiple functions

I don't know if you finally found what you where looking for fabworx, but I was searching yesterday for the same thing and found that I could use the halui component.

For example, for connecting a button that will run the thing, I tried:
Same for other buttons. Need a "HALUI=halui" in your .ini file first.

It kind of works, but I think that I need a custom component to support all the necessary logic so that it works just as AXIS does. Or, better, I'll try to make something that does RUN/PAUSE/STOP on the same button. I was thinking something like doing a STOP action when pressed for more that one sec, or something.

Thanks John. I saw the example and will study it. But I have come to the conclusion that, as Andy said earlier here, it will be much easier to create a custom component that will do what I want, since my setup will be somewhat complicated.

hi john i have looked at the examples and have looked at the docs i cant figure out how to write the hal so that one button will do more the 2 functions as i want to use one momentary buttom on my pendant to cycle through my jog steps. i cant find an example any wheere with more then two functions. thanx for your help

Hi

This is an example of a custom multi position switch component that combines the functionality of the components that Andy highlighted in one.

It has a pin toggle, which increments the count and sends the next pin true until it reaches its limit and it cycles back to off.

It is written very simply, so that it is easy to alter, you could use bitwise operators etc and considerably reduce the code size but at the expense of readablity.

If it is of use, borrow with pride

regards

NB Now at www.linuxcnc.org/index.php/english/compo...id=47&id=15803#15803

thank you arceye however i have no idea how to impliment a component do i put it in my hal file or ini . also how do i connect a pin to the different jog scales and connect the hm2_5i20.0.062.in or what ever ithe phisical pin is the button on my pendent triggers.

Hi

This will tell you about building and installing a component using comp

linuxcnc.org/docs/html/hal_comp.html

I'll come back to you with with something re connections later, dashing out now.

Read the header of the .comp file for generic example connections to a parport and how to load the component in your hal file

regards

Hi again,

Having read the previous link you will have noted that to compile the component you just need

sudo comp --install multiswitch.comp from a directory with the multiswitch.comp file in it

That will compile multiswitch.ko and copy it to /usr/realtime-2.6.32-122-rtai/modules/emc2 on a vanilla install of Ubuntu 10.4 from Live CD.

To use the component, lets take Big Johns' Simple Remote Pendant as an example.
wiki.linuxcnc.org/emcinfo.pl?Simple_Remote_Pendant

First load the multiswitch component, set it to 3 positions (because we are using state0 as an unconnected off position).
Then set a button output linked to the multiswitch.0.toggle input, in this case input.0.btn-thumb.
Then just need to substitute the button outputs that were linked to the or2 components
for multiswitch.0.stateN output pins.

The result will allow cycling through the off/slow/med/fast jog speeds, just using the one button.

The below .hal file code shows this.
Compare it to the original code in the wiki and you should see the changes easily.
Health warning:
This is just a back of an envelope example of the principle, not a cut and paste .hal file, you will have to tailor to your needs and
test it.
The component may need a delay built in to prevent cycling through the states, if the button is not just pressed momentarily.
If that is the case let me know and I will devise something.

regards