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Hi

a. Please guide as how this can be done. Do we need a separate bit file for this. If yes, please share.
-Note that this will only work on stock 7i95t firmware or 7i95t_5abob firmware
-if you disable the stepgens on DB25 pins 4,5 and on.

b. Also how can I generate pwmgen on Pin 1 of the DB25 BoB with 7i95t. Please share instructions / commands.

 

Hallo zusammen

Als absoluter Linux-Anfänger habe ich mir vor ca. 5-6 Jahren mithilfe dieses Forums sowie YouTube-Beiträgen meine erste Konfiguration aufgesetzt und zum Laufen gebracht. Als Screen hatte ich Probe Basic gewählt. Nun habe ich den PC ersetzt, Debian 12 und darauf Linuxcnc 2.9.4 installiert. Als Screen verwende ich wieder Probe Basic. Es funktioniert soweit alles korrekt, bis auf einen Punkt. Nach dem Nullen fährt die Z-Achse nicht auf ihre Nullposition.

 
Die Maschine ist referenziert und steht auf der Parkposition 

 
Danach fahre ich das Werkstück an und nulle alle Achsen

 
Wenn ich dann mit "Go to Zero" die vorher gesetzten Nullpunkte anfahren will, bleibt die z-Achse oben stehen.

Was habe ich übersehen?

MfG Roger 

 
 
 

Thanks Peter, I didn't realise I was to connect field power for this test. I just did, and only get steady yellow lights on CR2 and CR8. No red fault light.

Please run LinuxCNC from the command line, then we will probably see what the error is

and what does this mean? thanks

same values or i am wrong??

Note the missing spikes (colored in blue/red) at the extreme left and right of the graph.

or a 7i92... i payed for both cards 100 euros...

so for my information... on a normal pc like optiplex 3020m or lenovo m73 tiny.. i have latency under 2000... but i never looked this way in the histogram.

can you explain me the spike?! please

Thanks, given that this issue only happens once a week or so, is the output logged anywhere?
This table gets some pretty heavy use so maybe it will be a good candidate for finding bugs.
Its probably not 100% current but the config is here
github.com/rodw-au/showstopper

'LIB:basic_sim.tcl' is used for simulation configs only. Also '..._cmd.hal' files are created automatically in sim configurations those do not exist in configs for real hardware.
Modifiying a simulation config to run real hardware is something I would advise you not to do. Instead I recommend to start out by creating a 4 axis config using pncconf (I don't know if fthe 7c80 is supported but I presume so).
- Get the four axes tuned and running smoothly.
- Add the 5. axis manually by copy/paste/modifying the relevant sections in the hal and ini files and get that also running smoothly.
- At this point you can then use the sim config as a reference on how to change to xyzac-trt kinematics.

Also when asking questions about a config you are working on it is usually a good start to attach your hal/ini files and any error messages you are getting.

Assuming you use the 7c81's FGPA for stepgen and don't sofware step, you don't need a base thread so latency requirements is much relaxed. I'd be happy with anything under 130,000 with 200,000 at a pinch

Thank you PCW - wasn't expecting any reply on Sunday:) Wow

on ny m73 i have a jitter of 1000... so what is the reason thst you say that this latency is good???? thanks

glad you figured it out!

ey Giovanni

i had another try today getting native cam working

i have a tab now with nativecam but its blank

this time i got right through the guide you did right to the end without errors

do you have any ideas?

i want to make a video after i get this working for the next guy lol
 
cheers

Andrew

 

Yes, there are over 20 messages saying it upgraded but not one message saying it got an error and failed during that upgrade attempt.
You can see I tried several times tying to get to the bottom of it, each generating a message.

The issue is that on two different PC's, the upgrade to a sim install failed without reporting an error which left me in the dark.
You seem unwilling to actually test such an upgrade process and instead want to blame my installation.