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Hey all, have accidentally corrupted the firmware with an old mesaflash on a Tormach controller and am trying to bring it back.

I've read a few threads here on the forums and gathered what I could, but I'm still having issues.
I've got the current efinity software (2025) and a FT2232H Mini Module. I've attempted to wire some of the JTAG up according to the specifications in the datasheet for JTAG, but was unsuccessful with that, and also via the wiring diagram here: www.forum.linuxcnc.org/27-driver-boards/...-the-fallback#318881
However, I can't make sense of the diagram.. It seems to mention that pins 1, 3, and 5 are ground, but according to the FT4232H and FT2232H datasheets, those pins are 3.3V VCC. I've tried a couple combinations of wiring but haven't been able to find one that works.

Is there any mapping between the actual bus names (AD1, BD2, etc) and the JTAG pins on the board? I don't mind doing a writeup on the procedure if I can get it working, but I'm just out of ideas here.

Thanks for anyone who can help.

Did this end up selling? I'm asking because I found it on marketplace in Canada, I did a search and found it here after I replied to the ad, seemed fishy. Thanks

www.facebook.com/marketplace/item/172213...anner&referralCode=2

Hi!

I know this is an old thread, but I too am having issues getting Mesact to communicate with my 7i97. It will ping okay.

I have mesaflash 3.4.9 installed and am aware that I may need a higher version, however I can't seem to find it. Does anyone have any tips on finding the latest Mesaflash? I can only find 3.4.9 on the GitHub link. Perhaps I'm missing something here!

Any help would be appreciated.

J

For a pure Unbuntu install, you will have to install your flavour of Ubuntu then install from source, unless you can get the debian packages to work.
If your Ubuntu install uses wayland rather than X11 those guis of Linuxcnc that depend on X11 libs may require a "compatibility" layer, that I've found is somewhat slower than native X11.

Personally I would recommend a the Debian ISO and stick with something that is straight forward and simple to install.

Actually there has been some talk about Canonical using a third graphics subsystem in the furture....and replacing all the basic Linux\Unix utils with Rust equivalents. What's next the return of Unity ?

Thank you so much! I will reply back with my experience. Several days, maybe...

github.com/ventoy/Ventoy/releases

Thank you so much! Where do I get the Ventoy download?

In this case the encoder resolution is 10 counts/mm (0.1mm) so I use a deadband = 0.05, This eliminated the oscillations that occurred simply by enabling LCNC.

Hi Tommy, thanks for your quick response. These are my ini and hal files if you'd like to take a look.

Im guessing your talking about axis? I havent found a way to embed the tooltable

but Im starting to remember that I already did this before....
forum.linuxcnc.org/21-axis/38188-solved-...screen-w-usercommand
5.5 years later....looks a little better

you still need a mouse though

This is just a stab in the dark, but try
P=0.2 up to 0.5
D=0.01 up to 0.05
FF1=0
Everything else PID related to 0 except some deadband, like 0.001
-
This is not an assumption, this is the only thing that properly works for my Mazak with Mitsubishi drives
And, yes i did a lot of head scratching, it did not help

Well once again here, ready to continue learning, I have obtained some ethercat modules ek1100, el4032 and el5151, el1008 and el2024, I have a Mecal sw453 machine, I continue with mitre saws haha, until now I had carried out all the tests with (H-Bridge PWM) + (DC Motor with encoder coupled directly to the shaft), for the case in question a servo amplifier is used which I have already talked about here in the forum at another time (Maxifet AF 60 10/20) it takes a control signal +/- 10V and also requires a tachometer the motor power supply is 60V, the motor is coupled to a reducer which could verify the transmission ratio, the encoder is 250 ppr and when connecting it to the 5151 module I was able to make some measurements such as the encoder-scale is 10 since for 2000mm I got 20,000 counts.After this hardware introduction, I can add that I've run tests tuning the control loop, and although I've managed to move the axis, I frequently get tracking errors. Some time ago, I asked here on the forum if it was possible to configure this without the encoder on the motor shaft. Based on some exchanges with Tommylight (thanks a lot for everything), he told me that a control loop with this configuration was viable and that Linuxcnc didn't care where the encoder was. Obviously, everything has its difficulties. I've run some tests, including: I increased the servo-thread frequency to 2 kHz. I tried tuning the PID loop by adding P with I and D set to zero, but the system oscillates with gain P=1. Finally, after much trial and error, I arrived at P=6, I=3, D=:4-6, FF1=1, which produces movement, but at the moment of braking, it begins to oscillate. If anyone can contribute ideas on how to improve the loop response for this configuration they would be very welcome,

Just this:

www.linuxcnc.org/iso/linuxcnc_2.9.4-amd64.hybrid.iso

Oops, missed that you said Ubuntu
 

What downloads do I need to install Ubuntu and Linuxcnc  on a Dell Optiplex 7000 series desktop?

I have the THCAD2 setup for 10V range and 32 divider with the plasma divider set to 20:1 and the arc voltage is displaying correctly after I set the scale and offset. The Thermal Dynamics has a 15V arc voltage before the start is initiated and it is showing correctly along with arc voltage during pierce and cut. For some reason I can't seem to get the Arc OK input to work. I have pin 12 of CPC connected to +24V, pin 14 to Mesa input 15, and -24V connected to Mesa common for the input. If I disconnect the CPC cable from the plasma cutter and short pins 12 and 14 the Mesa input goes high so the cabling should be good.

I have noticed there is a 2 second delay after start is triggered before the pilot arc lights so by setting my pierce time to (2 + pierce delay) and setting "Ignore OK" I have been able to get it to cut and the arc voltage is right around 137 that the cut table shows for the material I'm using.

The service manual for the plasma unit shows that it has an "OK to Move" LED inside the case so I may have to pull the cover and check that as well.

Any other ideas what I could be missing?

EDIT:  I disconnected pins 12 and 14 from the control and checked across them while cutting and there is no continuity so it looks like I will need to pull the case on the plasma unit and check the LED.

FINAL EDIT:  I went through all the resistance and diode checks in the service manual and verified continuity of the relay pins and the "Ok to Move" LED on the inverter board lights but the relay does not close.  So the relay is bad.  I switched to mode 0 in QTPlasmac and that works ok.  Maybe some day I'll pull the inverter board and see if I can just replace the relay but the Mesa/LinuxCNC side is working fine.