Ubuntu Bugs steppgen in 10.04

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14 Mar 2011 21:40 #7837 by PCW
I dont mean a graph I just mean a text list of what works and what does not work like this:

OS VER EMC VER HARDWARE OK SYMPTOM

U8.04 2.4.3 PARALLEL PORT YES none

U10.04 2.4.6 PARALLEL PORT NO FOLLOWING ERROR

etc

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14 Mar 2011 22:04 #7839 by radekB
U8.04 no problem even with the latency nor stepgen. It works both software and hardware stepgen.

U10.04 a strange latency. Using the Base period + hostmot raises a fatal conflict.
Stepgens I work weird. Using EMC version 2.5.0 and above, no used at all, evokes folloving error.

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15 Mar 2011 13:33 #7853 by PCW
Can you give more specific information including max latency in working and non working cases"
When you say base thread causes fatal conflict, what is the error?
and is the basethread actually used? (is an addf xxx basethread statement present)
There is a known bug with _unused_ basethreads and HostMot2
Have you tried setting the stepgens maxaccell value?
What motherboard are you using?

The reason I ask these questions is that its not easy to duplicate this problem
I have EMC 2.5pre on Ubunto 10.04 and testing with a 5I20 and the supplied hm2-stepper
configuration works fine on my system

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16 Mar 2011 01:44 #7869 by cmorley
In my case I have tried the hm2 stepper sample config.
I tried it with master it follow errors quickly.
on 2.4.6 it seems fine.
both use 8.04.

I will edit my personal config to run on 2.4.6 and try it later.

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16 Mar 2011 01:52 #7870 by PCW
Is this with the same config files in both cases? as the sample config may have changed

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16 Mar 2011 04:20 #7873 by cmorley
Possible it's different. i didn't check.
but I modified my personal config to remove the mux16 (which 2.4 doesn't have) and it seems to jog fine.
I should make a nice clean usable in both versions config, to test with. I'll get back to you.

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16 Mar 2011 05:25 #7874 by cmorley
ok made a plain one in 2.4 then tried it on master (though a slightly old version)

seems to jog fine in 2.4 but in master the X axis follow errors, usually in the negative direction.
The other axis seem to jog ok but thats cause the follow error values are different (larger)

File Attachment:

File Name: test_config.zip
File Size:15 KB
Attachments:

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16 Mar 2011 05:36 - 16 Mar 2011 05:40 #7875 by mduzi
Yes I agree, I have other results ...

Here are the results of today's tests.
Anyway EMC ver. > 2.4 has a bug, sorry :(
Last edit: 16 Mar 2011 05:40 by mduzi.

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16 Mar 2011 05:42 - 16 Mar 2011 05:44 #7876 by mduzi


it is ver 2.4.1 all right
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Last edit: 16 Mar 2011 05:44 by mduzi.

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16 Mar 2011 05:44 - 16 Mar 2011 05:45 #7877 by mduzi


and it is master...
(same CNC program)
Attachments:
Last edit: 16 Mar 2011 05:45 by mduzi.

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