Yes

 

i want to make them all sinking i think its this?

setp hm2_7i96s.0.7i84.0.0.output_sink 0xffff

setp hm2_7i96s.0.7i84.0.0.output_source 0x0000
 

I think i get it now, but can you double check what you wrote isnt backwards.

From the manual:
"Sinking mode is similarly enabled by setting the corresponding sink bit to ‘1' and source bit to ‘0'

 

Yes, for example to set the first 8 outputs ( 0..7 )  to sink mode
and the last 8 outputs ( 8..15 ) to source mode, you would put:

setp hm2_7i96s.0.7i84.0.0.output_sink      0x00FF  
setp hm2_7i96s.0.7i84.0.0.output_source 0xFF00

In your hal file
 

So I write setp hm2_7i96s.0.7i84.0.0.output_sink in the hal file? 

I really underestimated the complexity of this.

Yes, it's done with a setp command in the  hal file

I don't have the parameter names in front of me, but you can find
them by running:

halcmd show all | grep source

and

halcmd show all | grep sink

when LinuxCNC is running

 

As long as you have updated LinuxCNC, the main thing needed is to
change the 5I25T firmware to support the 7I77

sudo mesaflash --device 5I25T --write 5i25t_7i77x2d.bin --reload

5i25t_7i77x2d.bin is in the 5i25t.zip file (in /configs/hostmot2) available from Mesa's webstore

Hello all, been a long time since I set up anything with Linux CNC and i have forgotten most of it. My last experience was setting up a mesa card with a ethernet configuration with digital steppers. I have picked up a Hurco Hawk 5 with analog steppers and encoders. It had already been set up with  wheezy 2.7 linux cnc. It had a 5i25 with P3 to a 7i77 for the servo, encoders, and a pendant. P2 was connected to a mach3 BOB to control the FVD. the 5i25 is not communicating to the 7i77 due to rodent damage. I Have purchased a 5I25T to replace it.  I have backed up the linuxcnc folder to a thumb drive and the plan is to update to the newest version of linux CNC. What am i looking at to change for the 5I25T to work with it after i reinstall to the new version. I assume it is not just a streight swap of the cards. 

Hello

Looking for help on where I go to change the 7i84U outputs to sink/source. the manual says I need to change the output parameters, is this done in hal?

Thanks

I like to wire E-Stops to power, not enable pins, with as few steps as possible. Soft e-stop can control an enable/disable line, but "real" e-stops I want to pull power from motors. On my machine, it's set up so that the Mesa card is powered separately from the motors/spindle. The Mesa card directly controls the enable lines for the motors, but the power enable signal (to a relay controlling motor power) is also physically routed through the e-stop button such that pressing the button will remove power regardless of what the Mesa card wants. You can get e-stop buttons with multiple switches in them if you want/need multiple circuits being separately switched by one physical button.

I generally also like to wire things such that "power applied" is "enabled", so that a broken wire or loose connection will only disable the machine.

If you've got other safety hazards from just yanking power (eg, a Z axis that could fall), you may need to consider those.

Hi Victo4,

congrats for your project, that is pretty cool.

Your modded vertical Linuxcnc version is available to download?
I can't find it on your github...

Thanks and regards,
Adam

I assume you're referring to the hal file, "num_stepgens=4"

Yes, but you can also do this in pncconf so the GPIO pins become
available I/O options in the configuration utility.

I assume you're referring to the hal file, "num_stepgens=4"