New Mesa config, only Y axis is working

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13 Jul 2019 03:06 #139225 by MattyZee
I installed Linuxcnc 2.7.14 Wheezy and I'm trying to configure a Mesa 5i25 board to drive my gecko G540. Everything was going as expected until i fire up Linuxcnc and only my Y axis would move. The dro values are changing and i can see the tool move around on the GUI, so it's not a homing/limit issue.

I have flashed my Mesa card with the G540x2 firmware.
When running PnCConf, i can test all three axes and they each work!
I tried creating a second config using stepconf and have proven that all three axes do work with the builtin parallel port when running Linuxcnc. So my cable, g540, wiring etc are all ok.
I'd really like to get it working with the Mesa card though...

I have attached my hal and ini files.

Any ideas?
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13 Jul 2019 03:15 #139226 by cmorley
try these INI settings for all axes:
DIRSETUP = 5000
DIRHOLD = 5000
STEPLEN = 10000
STEPSPACE = 10000

Chris M

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13 Jul 2019 03:27 #139228 by MattyZee
you legend! Yes, all three axes move now.
Can I ask why these settings? I chose the G540 option and it set them to the values I had. (which also match my datasheet).

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13 Jul 2019 03:30 #139229 by cmorley
The settings in pncconf in 2.7 are absolute minimum values. In some machines it's too close to the edge. Peter of Mesa recommends the settings I posted and they really don't limit your top speed.

Chris M

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13 Jul 2019 07:17 #139236 by pl7i92
th timing shoudt be set some around then you need topspeed
or to a value that is on the save side

some hardware needs very large scale then you need to rtigger the edges
but on standard take your Nanoseconds time 10e-9
talk about Usec 10e-6 still a very large amount of zeros

the electrons need to run both ways LOL

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