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  • PCW
  • PCW's Avatar
24 Feb 2026 16:43 - 24 Feb 2026 17:13
Replied by PCW on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

Might be cable wiring (if you never even get a green blink  from the 7I84U, there is no communication)

As tommylight asked, do you have both field powers applied ( A and B )?


 
  • Todd Zuercher
  • Todd Zuercher's Avatar
24 Feb 2026 16:26
Replied by Todd Zuercher on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

Yes, the field power is connected.

I have this for the config line in hal
loadrt hm2_eth board_ip="10.10.10.10" config="num_encoders=5 num_pwmgens=0 num_stepgens=5 sserial_port_0=0000000x"

Here's the output from mesaflash;
twincnc@twincnc:~$ mesaflash --device 7i76eu --addr 10.10.10.10 --dbname2 7i85 --readhmid
Configuration Name: HOSTMOT2

General configuration information:

BoardName : MESA7I76
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: 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: 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

Configuration pin-out:

IO Connections for on-card -> 7I76
Pin# I/O Pri. func Sec. func Chan Sec. Pin func Sec. Pin Dir

TB2-4,5 0 IOPort StepGen 0 Dir/Table2 (Out)
TB2-2,3 1 IOPort StepGen 0 Step/Table1 (Out)
TB2-10,11 2 IOPort StepGen 1 Dir/Table2 (Out)
TB2-8,9 3 IOPort StepGen 1 Step/Table1 (Out)
TB2-16,17 4 IOPort StepGen 2 Dir/Table2 (Out)
TB2-14,15 5 IOPort StepGen 2 Step/Table1 (Out)
TB2-22,23 6 IOPort StepGen 3 Dir/Table2 (Out)
TB2-20,21 7 IOPort StepGen 3 Step/Table1 (Out)
TB3-4,5 8 IOPort StepGen 4 Dir/Table2 (Out)
TB3-2,3 9 IOPort StepGen 4 Step/Table1 (Out)
Internal-Field-IO 10 IOPort SSerial 0 TXData0 (Out)
Internal-Field-IO 11 IOPort SSerial 0 RXData0 (In)
TB3-18,19 12 IOPort SSerial 0 TXData1 (Out)
TB3-16,17 13 IOPort SSerial 0 RXData1 (In)
TB3-13,14 14 IOPort MuxedQCount 2 MuxQ-IDX (In)
TB3-10,11 15 IOPort MuxedQCount 2 MuxQ-B (In)
TB3-7,8 16 IOPort MuxedQCount 2 MuxQ-A (In)

IO Connections for P1 -> 7I85
Pin# I/O Pri. func Sec. func Chan Sec. Pin func Sec. Pin Dir

TB1-19,20 17 IOPort SSerial 0 RXData6 (In)
TB1-21,22 18 IOPort SSerial 0 TXData6 (Out)
TB1-11,12 19 IOPort SSerial 0 RXData5 (In)
TB1-13,14 20 IOPort SSerial 0 TXData5 (Out)
TB1-3,4 21 IOPort SSerial 0 RXData4 (In)
TB1-5,6 22 IOPort SSerial 0 TXData4 (Out)
TB2-19,20 23 IOPort SSerial 0 RXData3 (In)
TB2-21,22 24 IOPort SSerial 0 TXData3 (Out)
TB2-11,12 25 IOPort SSerial 0 RXData2 (In)
TB2-13,14 26 IOPort SSerial 0 TXData2 (Out)
Internal-EncMux 27 IOPort MuxedQCountSel 0 MuxSel0 (Out)
TB3-1,2,9,10 28 IOPort MuxedQCount 0 MuxQ-A (In)
TB3-4,5,12,13 29 IOPort MuxedQCount 0 MuxQ-B (In)
TB3-7,8,12,13 30 IOPort MuxedQCount 0 MuxQ-IDX (In)
TB3-17,18,TB2-1,2 31 IOPort MuxedQCount 1 MuxQ-A (In)
TB3-20,21,TB2-4,5 32 IOPort MuxedQCount 1 MuxQ-B (In)
TB3-23,24,TB2-7,8 33 IOPort MuxedQCount 1 MuxQ-IDX (In)

IO Connections for P2
DB25 pin# I/O Pri. func Sec. func Chan Sec. Pin func Sec. Pin Dir

1 34 IOPort None
14 35 IOPort None
2 36 IOPort None
15 37 IOPort None
3 38 IOPort None
16 39 IOPort None
4 40 IOPort None
17 41 IOPort None
5 42 IOPort None
6 43 IOPort None
7 44 IOPort None
8 45 IOPort None
9 46 IOPort None
10 47 IOPort None
11 48 IOPort None
12 49 IOPort None
13 50 IOPort None

twincnc@twincnc:~$
  • PCW
  • PCW's Avatar
24 Feb 2026 16:19
Replied by PCW on topic 7i92TM defect? How to verify?

7i92TM defect? How to verify?

Category: Driver Boards

what does

mesaflash --device ethernet --addr 10.10.10.10 --rpo 0x1004


report?

(that's the second port)

 
  • petlegpete
  • petlegpete
24 Feb 2026 16:15
Replied by petlegpete on topic 7i92TM defect? How to verify?

7i92TM defect? How to verify?

Category: Driver Boards

Thanks a lot.
I am getting 00001000 as a response.
  • PCW
  • PCW's Avatar
24 Feb 2026 16:11 - 24 Feb 2026 16:17
Replied by PCW on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

Is sserial channel 2 enabled in the hal file?

(something like : "sserial_port_0=000xxxxx" in the driver command line)

Also

mesaflash --device 7i76eu  --addr 10.10.10.10  --dbname2  7i85 --readhmid

would list the 7I85 pins, not DB25 pins
  • Dudelbert
  • Dudelbert
24 Feb 2026 16:10
Replied by Dudelbert on topic Considering a Full Rewire on a Working Schaublin 125 CNC

Considering a Full Rewire on a Working Schaublin 125 CNC

Category: Turning

I tried again today.

At this point, I believe that at least some of the hardware is broken. The Smart Serial channels 0 to 3 of the 7i92t/7i85 combo do not work. I was able to get 4 of the 5 Smart Serial boards to be detected if I connect them to channel 4 of the 7i85, but on all other channels I get nothing. I don’t know if the fact that this is exactly the channel used by the bitfile I used to get a working config is a coincidence, or if I somehow managed to damage something.

I also don’t really understand how the process described in this topic works:
forum.linuxcnc.org/39-pncconf/52554-disc...ted-mesa-fpga#299687

With the described setup, there is no way to set the X and Z axes. When I try to go that route, I always get an error window in PnCconf telling me I have to set stepgen or pwmgen for the axes. So the statement “The rest of the setup in PnCconf should proceed in a more normal manner.” seems strange to me.

Regarding the 7i84U, I can get one to be detected, but I get an undervoltage error. Measuring the outputs, they do not seem to work when I set or reset them, and when I inject +24V or GND into an input, it does not change state in HAL Show either.

The second 7i84U is not detected at all, and LED CR6 does not come on.

So are both broken somehow? I don’t know.

At this point, I think my 7i73 and 7i83 are probably fine. Both 7i84Us are likely faulty, but in different ways, and either the 7i92T or the 7i85 may also have some problems.

I really don’t know how to proceed from here. Honestly, I am considering getting a 7i97T and more or less replicating the setup I use on my mill.
  • tommylight
  • tommylight's Avatar
24 Feb 2026 16:09
Replied by tommylight on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

7i84 requires having field power on both section for all IO to show up, not sure about the 7i84U.
Is the field power applied to the 7i84U?
  • tommylight
  • tommylight's Avatar
24 Feb 2026 16:06
Replied by tommylight on topic Enabling multi-touch (pinch-to-zoom) in QtDragon HD with Touchscreen

Enabling multi-touch (pinch-to-zoom) in QtDragon HD with Touchscreen

Category: General LinuxCNC Questions

Does QtVCP zoom with mouse wheel?
Multitouch should at least emulate mouse buttons and wheel, but i never tried it... there is something for Linux enabling multitouch but i forgot the name, comes preinstalled with System 76 laptops and their Linux distro, see if you can find any info about it. I did test it on a touchscreen laptop quite a while back and pinch to zoom worked for most stuff, i do not recall testing LinuxCNC with it.
  • Todd Zuercher
  • Todd Zuercher's Avatar
24 Feb 2026 16:02
7i76EU+7i85+7i84U was created by Todd Zuercher

7i76EU+7i85+7i84U

Category: Driver Boards

First time using a Mesa Ethernet board and I'm trying to set up a new install.  I think I've flashed the right firmware to the 7i76eu.  But I can't seem to see the 7i84u card that I have plugged into the first serial connector on the 7i85.  The encoders seem to be working on the 7i85, but I can't seem to make the 7i84u work.  On the 7i85u CR2 and CR7 are on yellow and CR5 is on red.  Not sure what I'm doing/have done wrong.

Here's the output of mesaflash --device 7i76eu  --addr 10.10.10.10  --readhmid
twincnc@twincnc:~$ mesaflash --device 7i76eu  --addr 10.10.10.10  --readhmid
Configuration Name: HOSTMOT2

General configuration information:

  BoardName : MESA7I76
  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: 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: 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

Configuration pin-out:

IO Connections for on-card -> 7I76
Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

TB2-4,5                 0   IOPort       StepGen          0        Dir/Table2      (Out)
TB2-2,3                 1   IOPort       StepGen          0        Step/Table1     (Out)
TB2-10,11               2   IOPort       StepGen          1        Dir/Table2      (Out)
TB2-8,9                 3   IOPort       StepGen          1        Step/Table1     (Out)
TB2-16,17               4   IOPort       StepGen          2        Dir/Table2      (Out)
TB2-14,15               5   IOPort       StepGen          2        Step/Table1     (Out)
TB2-22,23               6   IOPort       StepGen          3        Dir/Table2      (Out)
TB2-20,21               7   IOPort       StepGen          3        Step/Table1     (Out)
TB3-4,5                 8   IOPort       StepGen          4        Dir/Table2      (Out)
TB3-2,3                 9   IOPort       StepGen          4        Step/Table1     (Out)
Internal-Field-IO      10   IOPort       SSerial          0        TXData0         (Out)
Internal-Field-IO      11   IOPort       SSerial          0        RXData0         (In)
TB3-18,19              12   IOPort       SSerial          0        TXData1         (Out)
TB3-16,17              13   IOPort       SSerial          0        RXData1         (In)
TB3-13,14              14   IOPort       MuxedQCount      2        MuxQ-IDX        (In)
TB3-10,11              15   IOPort       MuxedQCount      2        MuxQ-B          (In)
TB3-7,8                16   IOPort       MuxedQCount      2        MuxQ-A          (In)

IO Connections for P1
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                     17   IOPort       SSerial          0        RXData6         (In)
14                     18   IOPort       SSerial          0        TXData6         (Out)
 2                     19   IOPort       SSerial          0        RXData5         (In)
15                     20   IOPort       SSerial          0        TXData5         (Out)
 3                     21   IOPort       SSerial          0        RXData4         (In)
16                     22   IOPort       SSerial          0        TXData4         (Out)
 4                     23   IOPort       SSerial          0        RXData3         (In)
17                     24   IOPort       SSerial          0        TXData3         (Out)
 5                     25   IOPort       SSerial          0        RXData2         (In)
 6                     26   IOPort       SSerial          0        TXData2         (Out)
 7                     27   IOPort       MuxedQCountSel   0        MuxSel0         (Out)
 8                     28   IOPort       MuxedQCount      0        MuxQ-A          (In)
 9                     29   IOPort       MuxedQCount      0        MuxQ-B          (In)
10                     30   IOPort       MuxedQCount      0        MuxQ-IDX        (In)
11                     31   IOPort       MuxedQCount      1        MuxQ-A          (In)
12                     32   IOPort       MuxedQCount      1        MuxQ-B          (In)
13                     33   IOPort       MuxedQCount      1        MuxQ-IDX        (In)

IO Connections for P2
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                     34   IOPort       None           
14                     35   IOPort       None           
 2                     36   IOPort       None           
15                     37   IOPort       None           
 3                     38   IOPort       None           
16                     39   IOPort       None           
 4                     40   IOPort       None           
17                     41   IOPort       None           
 5                     42   IOPort       None           
 6                     43   IOPort       None           
 7                     44   IOPort       None           
 8                     45   IOPort       None           
 9                     46   IOPort       None           
10                     47   IOPort       None           
11                     48   IOPort       None           
12                     49   IOPort       None           
13                     50   IOPort       None      
  • PCW
  • PCW's Avatar
24 Feb 2026 15:46
Replied by PCW on topic 7i92TM defect? How to verify?

7i92TM defect? How to verify?

Category: Driver Boards

A quick way to test is with mesaflash:

Disconnect the 7I92TM from breakouts/ G540 and make sure the
pullup option on P2 is enabled (W2 UP) Then in a terminal window:

mesaflash --device ethernet --addr 10.10.10.10 --rpo 0x1000

(replace 10.10.10.10 with 192.168.121 if you card is set that way)

This should respond with

0001FFFF

(all 17 I/O bits high)
  • Marco61
  • Marco61
24 Feb 2026 15:36
Replied by Marco61 on topic Bouttons du Custom Panel ne fonctionnent pas

Bouttons du Custom Panel ne fonctionnent pas

Category: Français

Resolu

Codes disponibles

Merci
  • Marco61
  • Marco61
24 Feb 2026 15:33
Replied by Marco61 on topic Buttons in cutom panel look conected but did not work

Buttons in cutom panel look conected but did not work

Category: pyVCP

SOLVED !

Codes available.
Thxs
  • Marco61
  • Marco61
24 Feb 2026 15:28
Jog speed was created by Marco61

Jog speed

Category: pyVCP

Hi evryone,
My buttons jog xyz +- in the custom panel are working ! Yéhhhhhhhh
Home button as well.
Slider for speed control as well.
Last problem is the speed max in this pannel.
Very slow @ max more slow @50%

 Can someone tell me where and in whitch files I can increase the max speed in pyVCP.

Thanks

Marco


 
  • cmorley
  • cmorley
24 Feb 2026 14:45
Replied by cmorley on topic Enabling multi-touch (pinch-to-zoom) in QtDragon HD with Touchscreen

Enabling multi-touch (pinch-to-zoom) in QtDragon HD with Touchscreen

Category: General LinuxCNC Questions

Qtvcp does not know about multitouch.
I don't have a multitouch to test with and QtPy5 had very little examples the last time I looked.

If you would like to try...
Somewhere around here is where you would add the code:
github.com/LinuxCNC/linuxcnc/blob/master...mlin/qt5_graphics.py
  • Jensner
  • Jensner
24 Feb 2026 14:21
Replied by Jensner on topic Aufschaukeln mit JMC iHSS60-36-30-21-38 in Verbindung mit Linear Encodern

Aufschaukeln mit JMC iHSS60-36-30-21-38 in Verbindung mit Linear Encodern

Category: Deutsch

After nearly 3 Month i have to thank all of you.
Last November I startet these upgrade with linear encoders on all axis and after view days with try and error i just solved the problems and i can`t tell what a gamechanger this upgrade was to my mill.

Before this upgrade I allways had the problem, that on long programs with many moves i often had some losses of steps and the result never was perfect. (mostly on my 2m long X-axle) After the upgrade to the encoder its a dream to work. No more losses of steps and i can work on a level i never dreamd of.

Next project will be an upgrade to an ATC Spindle with a cabinet.
So i think th next thead is coming soon ...

Thanks a lot at all
Jens
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