On Wed, 19 Sep 2018, Gene Heskett wrote:
Date: Wed, 19 Sep 2018 17:17:30 -0400
From: Gene Heskett <[email protected]>
Reply-To: "Enhanced Machine Controller (EMC)"
<[email protected]>
To: [email protected]
Subject: Re: [Emc-users] bad 5i25?
On Wednesday 19 September 2018 16:49:59 Peter C. Wallace wrote:
On Wed, 19 Sep 2018, Gene Heskett wrote:
My little lathe is doing funny things with the z axis.
The halmeter menu cannot find the joint.1.motor-pos-cmd output to
monitor it.
Since is the 1st 5i25 I've put in service quite a few years back,
and it is supposed to have a 5i25_prob_rfx2.bit file in it, same as
in my G0704 mill, I thought I'd verify it, but didn't get too far.
This command line:
sudo mesaflash --device 5i25 --verify 5i25_prob_rfx2.bit
says boot ok, then gets to 0x1000EA where it expects to read an
0x10, but gets an 0x00 and exits with the error.
You cannot in general verify stored bitfiles against current bitfiles
as even a re-compile will change the bitfile contents so verify will
fail.
Do I have a forgetfull card? Or is it actually programmed to some
other bitfile? This, being the original card I bought, was
preprogrammed when I ordered it all those years ago.
How should I proceed?
No need to do anything really, a card cannot forget even a single bit
or it will not load the firmware from the flash chip (it will have a
CRC error and fallback to the alternate configuration which 1. Will
blink the red INIT light, 2. Is a justio config that has nothing but
GPIO)
In that event, where are the missing pins?
Which missing pin? you only listed a missing pin from motion, not hardware
Z moves normally when the key is held down. Then runs on for an
additional distance in the same direction. A 6.35mm move, moves the
6.35mm's, then drops to about .001mm velocity for an additional 9 thou
at which point the pos-cmd and motor-pos-fb finally match. And its
cumulative, ask it to move an inch (25.4mm's) at 500mm/min and it moves
at that speed, then virtually stops, taking around a minute to arrive at
matching counts, which can be an additional move of more than 20 thou at
the end of the high speed move. So I have no instant control and that
kills homing. The esc and f2 keys are ignored during this ultra slow
final move.
Sounds like a stepgen setup/tuning issue
I'll do some more checking but that would be a lot easier to see if I
could turn off geany's color as most of the vars and pin names are
rendered in red. And thats making my cataract problems worse. Black
text on a white screen is ok, red on white not so much. If I can find
someone to drive me on Oct 17, I get the first eye fixed, 2 weeks later
the other one.
Thanks Peter.
--
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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Peter Wallace
Mesa Electronics
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