On Wed, 6 Mar 2019, Gene Heskett wrote:
Date: Wed, 6 Mar 2019 11:29:29 -0500
From: Gene Heskett <[email protected]>
Reply-To: EMC developers <[email protected]>
To: [email protected]
Subject: Re: [Emc-developers] future of rpi?
Huge snip about rpi updates destroying that install:
I think, given the resources at hand, that I'll be quicker to a working
machine by reburning the 7i90HD with a parport interface, and finding a
way to hang the old dell I use for mesa-card programming on the 1.5"
post holding up what's there now and using a 26 pin cable maybe 2 feet
long to reach into the interface box and drive the 7i90HD. That post is
loaded now, so I'll have to fab some mounting brackets etc. Not to
mention clearing out behind the lathe so I can get back there to work.
Open floor space is soon occupied, by paint buckets, pieces removed from
the lathe by the conversion and tools tossed down because I'm too lazy
to put them away properly.
In retrospect, keeping that Jessie install up to date was a mistake.
Keeping the rest of the wheezy/intel installs uptodate has been good,
but one tends to forget that intel is everywhere, so updates are subject
to thousands of eyeballs, while the pi is 100% proprietary and they can
do as they please, and apparently have. I'd buy another D525MW mobo, but
I've no place to put it out of the flying swarf unless someone has found
a suitable box???.
Thats why I originally bought the whole shoebox from ARK when I bought
the two of those I do have. Put them and the drivers on high shelves and
out of the flying swarf. Thats worked well.
In fact, this 7i90HD has been noise damaged and I've programmed around
it, so this is a good excuse as I'll have to order another. And then
I'll have all good stepgens again in case I want to add some more
gingerbread.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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I've had a RPI running LinuxCNC master here (with 7C80 hardware)
for about 8 months 24/7 and I have not seen any network (I'm using WIFI) or
KB/Mouse issues, but I have (deliberatly) not done any updates.
This is running stretch:
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/";
SUPPORT_URL="http://www.raspbian.org/RaspbianForums";
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs";
Using a kernel I got from RMU (thanks RMU!):
Linux raspberrypi 4.9.65-rt56-v7+ #3 SMP PREEMPT RT Thu Dec 14 12:26:15 CET
2017 armv7l GNU/Linux
You do have to enable hardware OpenGL or the backplot is painfully slow and
you cannot manipulate full screen dense backplots without running out of the
RPIs meager memory space. ( This may be fixed eventually by the very clever
guys working on QtPyVCP that have reduced the backplot memory footprint and
speed it up considerably using VTK )
I can post the config.txt and cmdline.txt files if you like
Peter Wallace
Mesa Electronics
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