On Wednesday 06 March 2019 13:44:32 Peter C. Wallace wrote:

> 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>
> >
> >
> >
> > _______________________________________________
> > Emc-developers mailing list
> > [email protected]
> > https://lists.sourceforge.net/lists/listinfo/emc-developers
>
> 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've seen that in the changelogs. Progress!

>
> I can post the config.txt and cmdline.txt files if you like
>
That would be helpfull, but I am not familiar with the 7C80 you 
mentioned, I see it on your site but it is not in your current price 
list.  Nor are the manuals and software listed.  I'd also be interested 
in where you got the stretch install from. And a copy of that kernel.

Better yet, I can send you a 32 or 64gb u-sd you could dd it to. :)

I have the radios turned off as I have a neighbor whose smartphone can 
hack into my radios in <2 seconds if they are enabled. Used 80 gb of my 
bandwidth the month I discovered it. I should also point out that I am 
told the wifi doesn't have to go thru the internal usb hub thats such an 
rpi pita.  So the wifi is s/b faster.

It may, if it depends on the wifi, behoove me to secure it against the 
smartphones if that is possible. Security tuning data for wifi seems to 
be hard to find. Simplest is likely locking it the accessor's mac. Also 
the easiest to discover...

> Peter Wallace
> Mesa Electronics
>
>
>
> _______________________________________________
> Emc-developers mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/emc-developers


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>



_______________________________________________
Emc-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-developers

Reply via email to