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  • PCW
28 Dec 2025 15:18
Replied by PCW on topic Bitfile for Mesa 7i96s + 7i85 (+Modbus (PKT-Pin))
Yes, you may need to use pkluart (RX and TX) version 2 if not running the latest LinuxCNC
  • manny
28 Dec 2025 13:54
LinuxCNC + Mesa 7i43 – Axis A stepper (stepgen), error was created by manny
Hello,

I am using LinuxCNC with a Mesa 7i43 card.
Axes X, Y and Z are working correctly.

I need help with configuring Axis A (4th axis),
which I use as an auxiliary axis and want to control
with a stepper motor using STEP/DIR signals.

Hardware:
- LinuxCNC
- Mesa 7i43
- Stepper driver – blue digital stepper driver, Leadshine DM542 / DM556 type
  (or compatible clone) with PUL+, PUL-, DIR+, DIR-, ENA+, ENA- inputs
- 2-phase stepper motor

Stepper driver wiring:
- PUL+  -> Mesa P3 pin 25
- PUL-  -> Mesa P3 pin 26
- DIR+  -> Mesa P3 pin 27
- DIR-  -> Mesa P3 pin 28
- ENA+  -> Mesa P3 pin 29
- ENA-  -> Mesa P3 pin 30

The driver is configured by DIP switches for microstepping
(e.g. 3200 pulses per revolution).

Axis A is configured in the HAL file as a stepper axis
using hm2 stepgen (stepgen.00).

I need advice on how to correctly modify the HAL file
so that Axis A works properly as a stepper axis
with the Mesa 7i43.

I am attaching my complete HAL file.

Thank you.


#*******************
#  AXIS A
#*******************

setp   pid.a.Pgain     [AXIS_3]P
setp   pid.a.Igain     [AXIS_3]I
setp   pid.a.Dgain     [AXIS_3]D
setp   pid.a.bias      [AXIS_3]BIAS
setp   pid.a.FF0       [AXIS_3]FF0
setp   pid.a.FF1       [AXIS_3]FF1
setp   pid.a.FF2       [AXIS_3]FF2
setp   pid.a.deadband  [AXIS_3]DEADBAND
setp   pid.a.maxoutput [AXIS_3]MAX_OUTPUT
setp   pid.a.error-previous-target true
setp   pid.a.maxerror .0005

net a-index-enable  <=> pid.a.index-enable
net a-enable        =>  pid.a.enable
net a-pos-cmd       =>  pid.a.command
net a-vel-cmd       =>  pid.a.command-deriv
net a-pos-fb        =>  pid.a.feedback
net a-output        =>  pid.a.output

# Step Gen signals/setup

setp   hm2_7i43.0.stepgen.00.dirsetup        [AXIS_3]DIRSETUP
setp   hm2_7i43.0.stepgen.00.dirhold         [AXIS_3]DIRHOLD
setp   hm2_7i43.0.stepgen.00.steplen         [AXIS_3]STEPLEN
setp   hm2_7i43.0.stepgen.00.stepspace       [AXIS_3]STEPSPACE
setp   hm2_7i43.0.stepgen.00.position-scale  [AXIS_3]STEP_SCALE
setp   hm2_7i43.0.stepgen.00.step_type        0
setp   hm2_7i43.0.stepgen.00.control-type     1
setp   hm2_7i43.0.stepgen.00.maxaccel         [AXIS_3]STEPGEN_MAXACCEL
setp   hm2_7i43.0.stepgen.00.maxvel           [AXIS_3]STEPGEN_MAXVEL

# ---closedloop stepper signals---

net a-pos-cmd    <= axis.3.motor-pos-cmd
net a-vel-cmd    <= axis.3.joint-vel-cmd
net a-output     => hm2_7i43.0.stepgen.00.velocity-cmd
net a-pos-fb     <= hm2_7i43.0.stepgen.00.position-fb
net a-pos-fb     => axis.3.motor-pos-fb
net a-enable     <= axis.3.amp-enable-out
net a-enable     => hm2_7i43.0.stepgen.00.enable

# ---setup home / limit switch signals---

net a-home-sw     =>  axis.3.home-sw-in
net a-neg-limit     =>  axis.3.neg-lim-sw-in
net a-pos-limit     =>  axis.3.pos-lim-sw-in



 
  • tommylight
28 Dec 2025 12:07
Replied by tommylight on topic No speed control on xhc-wb04b-6 pendant on 3 axis router
Usually due to naming errors, like spindle.enable should be spindle.0.enable, axis should be joints, etc.
  • unknown
28 Dec 2025 10:54 - 28 Dec 2025 11:01
Replied by unknown on topic How to install simplescreenrecorder on old version of Debian?
Dependencies will be a nightmare, libqt5 will be a problem as it would appear it wasn't packaged for Wheezy, if in fact Wheezy is the Debian version Old Mate is running.
  • TripleM
28 Dec 2025 09:31
Replied by TripleM on topic Bitfile for Mesa 7i96s + 7i85 (+Modbus (PKT-Pin))
I tested the bit file...
The good news: nothing is damaged. But I got this error
Code:
Debug file information: Note: Using POSIX realtime hm2/hm2_7i96s.0: Unsupported or inconsistent PktUART TX module (version 3)not loading driver  hm2/hm2_7i96s.0: failed to parse Module Descriptor 12 hm2_eth: rtapi_app_main: Invalid argument (-22)

Should I use version 2?
I change the Version by editing x"03"--> x"02"?:
Code:
(PktUARTTTag,        x"03",    ClockLowTag,            x"01",    PktUARTTDataAddr&PadT,        PktUARTTNumRegs,         x"00",    PktUARTTMPBitMask),         (PktUARTRTag,        x"03",    ClockLowTag,            x"01",    PktUARTRDataAddr&PadT,        PktUARTRNumRegs,        x"00",    PktUARTRMPBitMask),

Code:
Configuration Name: HOSTMOT2 General configuration information:   BoardName : MESA7I96   FPGA Size: 20 KGates   FPGA Pins: 256   Number of IO Ports: 3   Width of one I/O port: 17   Clock Low frequency: 100.0000 MHz   Clock High frequency: 160.0000 MHz   IDROM Type: 3   Instance Stride 0: 4   Instance Stride 1: 64   Register Stride 0: 256   Register Stride 1: 256 Modules in configuration:   Module: DPLL   There are 1 of DPLL in configuration   Version: 0   Registers: 7   BaseAddress: 7000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: WatchDog   There are 1 of WatchDog in configuration   Version: 0   Registers: 3   BaseAddress: 0C00   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: IOPort   There are 3 of IOPort in configuration   Version: 0   Registers: 5   BaseAddress: 1000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: OutM   There are 1 of OutM in configuration   Version: 0   Registers: 1   BaseAddress: B000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: PWM   There are 1 of PWM in configuration   Version: 0   Registers: 5   BaseAddress: 4100   ClockFrequency: 160.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: StepGen   There are 5 of StepGen in configuration   Version: 2   Registers: 10   BaseAddress: 2000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: MuxedQCount   There are 6 of MuxedQCount in configuration   Version: 4   Registers: 5   BaseAddress: 3600   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: MuxedQCountSel   There are 1 of MuxedQCountSel in configuration   Version: 0   Registers: 0   BaseAddress: 0000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: SSerial   There are 1 of SSerial in configuration   Version: 0   Registers: 6   BaseAddress: 5B00   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 64 bytes   Module: SSR   There are 1 of SSR in configuration   Version: 0   Registers: 2   BaseAddress: 7D00   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: InM   There are 1 of InM in configuration   Version: 0   Registers: 5   BaseAddress: 8500   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: LED   There are 1 of LED in configuration   Version: 0   Registers: 1   BaseAddress: 0200   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: PktUARTTX   There are 1 of PktUARTTX in configuration   Version: 3   Registers: 4   BaseAddress: 6100   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: PktUARTRX   There are 1 of PktUARTRX in configuration   Version: 3   Registers: 4   BaseAddress: 6500   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes Configuration pin-out: IO Connections for TB3 -> 7I96_0 Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir TB3-1                   0   IOPort       InM              0        Input0_EncA0    (In) TB3-2                   1   IOPort       InM              0        Input1_EncB0    (In) TB3-3                   2   IOPort       InM              0        Input2_EncA1    (In) TB3-4                   3   IOPort       InM              0        Input3_EncB1    (In) TB3-5                   4   IOPort       InM              0        Input4_EncA2    (In) TB3-6                   5   IOPort       InM              0        Input5_EncB2    (In) TB3-7                   6   IOPort       InM              0        Input6_EncA3    (In) TB3-8                   7   IOPort       InM              0        Input7_EncB3    (In) TB3-9                   8   IOPort       InM              0        Input8          (In) TB3-10                  9   IOPort       InM              0        Input9          (In) TB3-11                 10   IOPort       InM              0        Input10         (In) TB3-13,14              11   IOPort       SSR              0        Out-00          (Out) TB3-15,16              12   IOPort       SSR              0        Out-01          (Out) TB3-17,18              13   IOPort       SSR              0        Out-02          (Out) TB3-19,20              14   IOPort       SSR              0        Out-03          (Out) TB3-21,22              15   IOPort       OutM             0        Output4         (Out) TB3-23,24              16   IOPort       OutM             0        Output5         (Out) IO Connections for TB1/TB2 -> 7I96_1 Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir TB1-2,3                17   IOPort       StepGen          0        Step/Table1     (Out) TB1-4,5                18   IOPort       StepGen          0        Dir/Table2      (Out) TB1-8,9                19   IOPort       StepGen          1        Step/Table1     (Out) TB1-10,11              20   IOPort       StepGen          1        Dir/Table2      (Out) TB1-14,15              21   IOPort       StepGen          2        Step/Table1     (Out) TB1-16,17              22   IOPort       StepGen          2        Dir/Table2      (Out) TB1-20,21              23   IOPort       StepGen          3        Step/Table1     (Out) TB1-22,23              24   IOPort       StepGen          3        Dir/Table2      (Out) TB2-2,3                25   IOPort       StepGen          4        Step/Table1     (Out) TB2-4,5                26   IOPort       StepGen          4        Dir/Table2      (Out) TB2-7,8                27   IOPort       MuxedQCount      2        MuxQ-A          (In) TB2-10,11              28   IOPort       MuxedQCount      2        MuxQ-B          (In) TB2-13,14              29   IOPort       MuxedQCount      2        MuxQ-IDX        (In) TB2-16,17              30   IOPort       PktUARTRX        0        RXData          (In) TB2-18,19              31   IOPort       PktUARTTX        0        TXData          (Out) Internal-TXEn          32   IOPort       PktUARTTX        0        TXEna           (Out) Internal               33   IOPort       SSR              0        AC Ref          (Out) IO Connections for P1 -> 7I96_2 Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir P1-01/DB25-01          34   IOPort       SSerial          0        RXData4         (In) P1-02/DB25-14          35   IOPort       SSerial          0        TXData4         (Out) P1-03/DB25-02          36   IOPort       SSerial          0        RXData3         (In) P1-04/DB25-15          37   IOPort       SSerial          0        TXData3         (Out) P1-05/DB25-03          38   IOPort       SSerial          0        RXData2         (In) P1-06/DB25-16          39   IOPort       SSerial          0        TXData2         (Out) P1-07/DB25-04          40   IOPort       SSerial          0        RXData1         (In) P1-08/DB25-17          41   IOPort       SSerial          0        TXData1         (Out) P1-09/DB25-05          42   IOPort       SSerial          0        RXData0         (In) P1-11/DB25-06          43   IOPort       SSerial          0        TXData0         (Out) P1-13/DB25-07          44   IOPort       MuxedQCountSel   0        MuxSel0         (Out) P1-15/DB25-08          45   IOPort       MuxedQCount      0        MuxQ-A          (In) P1-17/DB25-09          46   IOPort       MuxedQCount      0        MuxQ-B          (In) P1-19/DB25-10          47   IOPort       MuxedQCount      0        MuxQ-IDX        (In) P1-21/DB25-11          48   IOPort       MuxedQCount      1        MuxQ-A          (In) P1-23/DB25-12          49   IOPort       MuxedQCount      1        MuxQ-B          (In) P1-25/DB25-13          50   IOPort       MuxedQCount      1        MuxQ-IDX        (In)
    
  • timo
28 Dec 2025 08:51 - 28 Dec 2025 09:01
Replied by timo on topic CNC camshaft grinder DIY project
I am super curious about that.
You might consider a more narrow grinding wheel. Then you can traverse the x-Axis. I think this might improve surface finish.

I also would add a tailstock support on the end of the cam shaft. It will improve things, worth the effort.

Edit: I would first try to get x-y-z and rotation running. Then try some simple cylindrical grinding to get a feel for the machine and surface finishes. 

Please keep reporting how things go. 
  • jameslc15
28 Dec 2025 06:36 - 28 Dec 2025 06:37
Replied by jameslc15 on topic No speed control on xhc-wb04b-6 pendant on 3 axis router
Hi Tommy

Thank you for the heads up, I did some reading prior to get the vfd signal going and did hear to other peoples warnings on this forum so I've got an abs component running successfully. The issue is the pendant won't send rpm signal to analogue output 5 were as axis will ?
  • grandixximo
28 Dec 2025 06:23
Replied by grandixximo on topic How to fix "Queue is not empty after probing"
could you run
latency-histogram
instead of latency-test?
I think you might be onto something, I use a custom version with probe tripped during non-probe move disabled, and I never see queue error...
  • rodw
28 Dec 2025 05:45
Replied by rodw on topic Freelancer wanted to get tool sensor working (software)
My email address is on my YouTube channel  www.youtube.com/@MrRodW
Qtdragon and probebasic assume you have repeatable tooling. If you don't, I would recommend investing in Tormach TTS collets, their marble plate and a  manual tool height measurer. Measure your 3D probe and your tools and record the settings in the tool table. Probe the material height with the 3D probe and the tool changing routine will do what you want to do. (ask you to insert a premeasured tool) This is far the best way. Works perfectly with QT dragon
  • rodw
28 Dec 2025 05:35
Replied by rodw on topic How to install simplescreenrecorder on old version of Debian?

Why it is so hard to install a simple program on Linux, which I have installed easily on two other flavours of linux.?
Becasue you are using an old and unsupported version of Debian.

@unknown, Sid or more correctly unstable branch of Debian has the latest version of 2.9 (eg 2.9.7) while the release version is a couple of versions behind due to Debian's lockdown policy.  Using APT pinning allows you to get linuxcnc (and possibly simplescreenrecorder) from Sid/unstable as I outline in this video


IN fact a variant of this could be used by the OP to get simplescreenrecorder from unstable (or Trixie)
  • Thllll
28 Dec 2025 02:07
Freelancer wanted to get tool sensor working (software) was created by Thllll
I am looking for a freelancer to remote into my system and help me get tool sensor working in either probe basic or dragon QT.

The mill works right now with Dragon QT, able to home, jog, run g-code, even 3d probe. I am giving up though on trying to get this tool sensor to work, spent way to much time trying to get the right ini setting or something. Unable to find any manauls, guides, or anything to set this up in software. The tool sensor is a that standard orange button one from amazon. Its wired in, it works, the software just doesnt want to work.

What happens is when I attempt to use the dragon qt tool sensor it goes to the postion, probes, then sets the tool offset to 9999999. The other "buttons" for setting the tool length just dont work at all, does not press or allow me to press.

The objective is when a tool changed (manually for now) it will move to the tool sensor location, probe, set the tool length, then back to work.

Name your price, I just want it to work. 


 
  • rhscdn
28 Dec 2025 01:35
Replied by rhscdn on topic WHB04B-6 - Change display units and step sizes
Just wondering if there are any other alternatives for swapping the pendant units when a G20/G21 command is given? I frequently run jobs in metric/imperial units and keeping separate machine definitions seems like an inelegant solution. As described by the OP, the display units are correctly updated but not the pendant.
  • Thllll
28 Dec 2025 00:54 - 28 Dec 2025 01:51
QT Dragon Unable to Set Tool Height was created by Thllll
The buttons on the probing page for setting the tool height, I am unable to click on those. Ever other button works. Bottom two buttons
  • unknown
28 Dec 2025 00:05
Replied by unknown on topic CNC camshaft grinder DIY project
Change the couplers between the lead screw and stepper motor. They can wind under load and tear themselves apart.

Looks good so far.
  • unknown
27 Dec 2025 23:03
Replied by unknown on topic How to install simplescreenrecorder on old version of Debian?
What exact version of Debian are you using ?
When you do an apt update it will list the repos and the version, wheezy or bullseye or whatever.
If it's bullseye or up it's available in the repos, if not you may have to install from source, which brings along a whole manner of other issues. And to make whatters worse there does appear to be some issues with wheezy.
From my understanding Sid is the "unstable"branch, so I doubt that anything from Sid would help.
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