7i73 LCD shows rubisch

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22 Jan 2018 18:42 #104858 by Mike_Eitel
Replied by Mike_Eitel on topic 7i73 LCD shows rubisch
THX Seb

If I remember correct it happened after i did a synaptic upgrade 14.1.18
Haven't done such upgrade weeks before, maybe last time around Christmas but don't know anymore. Sorry. And it was always running perfect.


cnc@MeBigCNC3:~$ grep 'upgrade linuxcnc' /var/log/dpkg.log
2018-01-14 18:52:15 upgrade linuxcnc-doc-en:all 1:2.8.0~pre1.3405.ge10c52ea6 1:2.8.0~pre1.3520.g0a096c965
2018-01-14 18:52:17 upgrade linuxcnc-uspace-dev:amd64 1:2.8.0~pre1.3405.ge10c52ea6 1:2.8.0~pre1.3520.g0a096c965
2018-01-14 18:52:18 upgrade linuxcnc-uspace-dbgsym:amd64 1:2.8.0~pre1.3405.ge10c52ea6 1:2.8.0~pre1.3520.g0a096c965
2018-01-14 18:52:19 upgrade linuxcnc-uspace:amd64 1:2.8.0~pre1.3405.ge10c52ea6 1:2.8.0~pre1.3520.g0a096c965
2018-01-19 20:05:53 upgrade linuxcnc-doc-en:all 1:2.8.0~pre1.3520.g0a096c965 1:2.8.0~pre1.3522.g82ffc6cc7
2018-01-19 20:05:55 upgrade linuxcnc-uspace-dev:amd64 1:2.8.0~pre1.3520.g0a096c965 1:2.8.0~pre1.3522.g82ffc6cc7
2018-01-19 20:05:56 upgrade linuxcnc-uspace-dbgsym:amd64 1:2.8.0~pre1.3520.g0a096c965 1:2.8.0~pre1.3522.g82ffc6cc7
2018-01-19 20:05:57 upgrade linuxcnc-uspace:amd64 1:2.8.0~pre1.3520.g0a096c965 1:2.8.0~pre1.3522.g82ffc6cc7
2018-01-20 17:39:15 upgrade linuxcnc-doc-en:all 1:2.8.0~pre1.3522.g82ffc6cc7 1:2.8.0~pre1.3534.g5dc198347
2018-01-20 17:39:17 upgrade linuxcnc-uspace-dbgsym:amd64 1:2.8.0~pre1.3522.g82ffc6cc7 1:2.8.0~pre1.3534.g5dc198347
2018-01-20 17:39:19 upgrade linuxcnc-uspace-dev:amd64 1:2.8.0~pre1.3522.g82ffc6cc7 1:2.8.0~pre1.3534.g5dc198347
2018-01-20 17:39:20 upgrade linuxcnc-uspace:amd64 1:2.8.0~pre1.3522.g82ffc6cc7 1:2.8.0~pre1.3534.g5dc198347
cnc@MeBigCNC3:~$ ^C
cnc@MeBigCNC3:~$

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22 Jan 2018 18:57 #104861 by seb_kuzminsky
The 2018 January 14 update went from 1:2.8.0~pre1.3405.ge10c52ea6 to 1:2.8.0~pre1.3520.g0a096c965, which is a pretty large jump that includes the commit Rene pointed out. So that's valuable debugging, thanks.
The following user(s) said Thank You: Mike_Eitel

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22 Jan 2018 21:14 #104868 by Mike_Eitel
Replied by Mike_Eitel on topic 7i73 LCD shows rubisch
BIG THX

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23 Jan 2018 15:40 #104892 by andypugh
Replied by andypugh on topic 7i73 LCD shows rubisch
I have a 7i73 and I have an LCD. But I am not expecting to be home very much until mid-February. (I am currently north of the Arctic circle)

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08 Feb 2018 17:16 #105591 by Mike_Eitel
Replied by Mike_Eitel on topic 7i73 LCD shows rubisch
Shy question
Any news on that problem.
Mike

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08 Feb 2018 17:54 #105594 by andypugh
Replied by andypugh on topic 7i73 LCD shows rubisch
I am currently trying to get an LCD to work at all so that I have a way to test the software. I have removed the 7i73 from my milling machine, but I am not sure that the LCD I have ever worked.
I have another to try, and I suspect that, somewhere, I might even have another still with the right cable, but can't find it.

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08 Feb 2018 18:01 #105595 by PCW
Replied by PCW on topic 7i73 LCD shows rubisch
AFAIK the driver change the broke the 7I73 is the one that allows direct parameter access.
As a side effect this sets all parameters to 0. This is likely to cause all kinds of troubles with
Mesa sserial cards

I think any driver change that touches sserial parameters without a
specific user request should be enabled by a flag (maybe per channel)

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08 Feb 2018 18:37 #105597 by Mike_Eitel
Replied by Mike_Eitel on topic 7i73 LCD shows rubisch
One general problem with lcd i found is the brightness voltage. It is often needed slightly negative. That's why i do not use the 7i73 pin but have a icl7660 generate -5v and use a simple poti.
Mike

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08 Feb 2018 18:44 - 08 Feb 2018 18:44 #105598 by andypugh
Replied by andypugh on topic 7i73 LCD shows rubisch

PCW wrote: AFAIK the driver change the broke the 7I73 is the one that allows direct parameter access.

I think this is probable, but needs to be proved

As a side effect this sets all parameters to 0.

It really shouldn't. The HAL parameters should take the values read from the device, as before.
Last edit: 08 Feb 2018 18:44 by andypugh.

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08 Feb 2018 18:52 #105599 by PCW
Replied by PCW on topic 7i73 LCD shows rubisch
Pretty sure this has been proven ( backing out to before that change fixed the LCD issue )

The setting parameters to 0 is something suggested by rene-dev on IRC (he seemed to think this happens )

But in general at least for Mesa sserial devices, parameters are very much like CANOpen SDO objects
( Setup Data Objects ) nothing that should be set live (as opposed to PDO = Process Data Oblects ) which are
expected to be controlled live

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