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 When I use the net command in my HAL file in LinuxCNC to connect a QtDragon pin (for example, net jogspeed_u qtdragon.slider-jogspeed-linear classic ladder.0.floatin-05) to a HAL signal, I get an error saying that the pin qtdragon.slider-jogspeed-linear does not exist. However, when I run the same command via the halcmd interface, no error occurs. What could be the reason for this issue?
 

using spindle-enable the output of lut5.0 seemds to remain resolutely False, despite the values of the input signals being correct

First, thanks for all the help.  This is my time LinuxCNC so, please bear with me.  My setup:  Rpi5 with SPI to a BigTreeTech SKR 1.4 (has the LPC processor) running Remora pulled from Github a couple weeks ago.  I got everything compiled and I think in the right place (I got a bunch of warnings on the SPI Remora compile but was told to ignore).  I figured the remora-xyz sample code looked like a good place to start.  The LinuxCNC Config Selector allows me to select remora-xyz and a window starts with axis.ngc.  *The problem is that the Emergency Stop button comes up pressed and it can't click it off*.  I have tried using the halmeter tool and found a variable called iocontrol.0.user-request-enable that I think may be relevant based on looking at the .hal file.  This PIN reads FALSE but very briefly flashes to TRUE, then back to FALSE when I click on the Estop button.  I as wondering if the remora-xyz example is actually trying to read a HW input somewhere on the SKR 1.4 board that I should be terminating correctly?   Any suggestions much appreciated.  TIA.   

Hi,

I somehow have troubles with my Linuxcnc setup. I use linuxcnc together with a NVEM Board with a RT1052 on it and the Remora-RT1052-cpp. When I do normal milling I usually don't see any problems. But with complex 3D surfaces all of the axis somehow drift away. It's not much but after 15 minutes of milling it's about 0.1mm. I'm quite sure that the problem are not the motors or the drivers. I also have the correct setup (setup and hold times) for my motordrivers, I even checked them with an oscilloscope and they are fine. With the oscilloscope I could also see, that the problem is not an EMI Problem, the signals (STEP/DIR) are not noisy at all.
Is it possible, that there is a problem with the Stepgenerator? I use the (almost) latest firmware 3.13 but from what I've seen the changes after 3.13 where not related to the Stepgenerator.
If not what else could cause this problem?

Thanks Clemens

Thank you very much for the firmware! It loaded to the board without problems. I will try it out.

Thx Peter.
How would you “handle” this? Could I just subtract a constant value from the calculated temp?

The 7I76EU inputs have and ~11K input impedance which needs to be accounted for
when driven by a high impedance source (it looks like your source impedance is around 5K Ohms) 

 

Oops sorry, haste makes waste...

Thanks for the firmware file! When I try to flash it with mesaflash, I get the error Invalid bitfile header. It looks like this is a raw Xilinx ISE/Vivado .bit file. Could you please provide the firmware in the proper format for mesaflash (with the MESA header, or as a .bin file for the 7i90)?

Thanks for the firmware file! When I try to flash it with mesaflash, I get the error Invalid bitfile header. It looks like this is a raw Xilinx ISE/Vivado .bit file. Could you please provide the firmware in the proper format for mesaflash (with the MESA header, or as a .bin file for the 7i90)?

Hey guys,
I want to measure the internal temp of my jianken ATC spindle. I have a NTC with a classic voltage divider setup, and at room temperature the V_out of this divider carries 12V. (Measured against GND with a multimeter).

However, as soon as I put this cable into analog_in1 of my Mesa 7i76eu, the voltage drops to 8v, and thous the calculated temperature is garbage...

Any ideas why this is happening? 

regards
Sebastian

 

 

Note that the pins listed in the source file comments are DB25 pins

so

7I90  P4.1  --> DB25.1
7I90  P4.3  --> DB25.14
7I90  P4.5  --> DB25.2

etc

Thanks a lot for the explanation! I will try this solution.

Hi thanks for your answer. Yes i saw your Macros and i think they look really good. You did and do a great jobs there for all, thank you for that! But as far as i understand them, you can only use one at a time right? and there is also no macro for a free contur ? or do i miss something? 

edit: oh sorry my bad, they are from andypugh of course! so thanks andy

Note that this is not a standard configuration as the 7I90 is a 50 pin connector FPGA card
and the 7I85S is s 25 pin FPGA card daughtercard. I pinned this out so a flat cable adapter
should be relatively simple (look at the included VHD source file for the pinout)

 

This has 3 stepgens and 1 PWMgen, 4 encoders and a sserial port
(on the 7I85S)