On 04/04/2017 01:13 PM, Joe Hildreth wrote:
> Looking at the ha;_manualtoolchange.py file, I see the following:
>
> h = hal.component("hal_manualtoolchange")
> h.newpin("number", hal.HAL_S32, hal.HAL_IN)
> h.newpin("change", hal.HAL_BIT, hal.HAL_IN)
> h.newpin("change_button", hal.HAL_BIT, hal.HAL_IN)
> h.newpin("changed", hal.HAL_BIT, hal.HAL_OUT)
> h.ready()
>
> So this tells me what pins are created, the only one I am unsure of is the
> change_button, can someone explain this one?
>
> I know this seems petty, but I am trying to wrap my head around it enough so
> I can teach a few high schoolers what is going on. Or maybe a little glimpse
> of how the parts fit and work together. Before I can do that, I need to
> teach myself.
>
> My impression is the hal_manualtoolchange component does the following:
>
> a) receives the tool number via hal_manualtoolchange.number pin
> b) receives a command to change the tool via hal_manualtoolchange.change pin
> c) The component then opens the dialog informing the user to change to tool #X
> d) User does the tool change and clicks the okay button.
> e) the okay button send signal via hal_manualtoolchange.changed
>
> am I close?
You're exactly correct, that's what hal_manualtoolchange does.
The M6 g-code triggers the tool change operation, and blocks until
hal_manualtoolchange asserts the .changed pin.
You're also right that we don't have a manpage for that component.
Since you know it so well now, why not try writing one? It's easy and
fun! ;-)
Take a look at docs/src/man/man1/halstreamer.txt for inspiration.
Some docs on how to check out and modify LinuxCNC and how to contribute
the changes back to the community can be found here:
http://linuxcnc.org/docs/devel/html/code/building-linuxcnc.html
http://linuxcnc.org/docs/devel/html/code/contributing-to-linuxcnc.html
--
Sebastian Kuzminsky
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
