1. Forum
  3. Search

Advanced Search

Search Results (Searched for: )

  • Todd Zuercher
  • Todd Zuercher's Avatar
24 Feb 2026 17:15
Replied by Todd Zuercher on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

Yes both A and B.
  • radom
  • radom
24 Feb 2026 17:01
Replied by radom on topic DMU 50M retrofit 99% done, Z axis falling on brake release

DMU 50M retrofit 99% done, Z axis falling on brake release

Category: General LinuxCNC Questions

I release z axis brake 0.2s after motion.motion-enabled and it works with my simodrive,
when does this servo power on signal becomes true? are you sure you are not releasing the brake before pid is working?
 
I don't think this is the issue. I checked just now to make sure. With me pressing F2 (which is also linked to the CNC ready signal going from the Mesa to the drive), I can clearly see the PID enabled and also motion.motion-enabled.

My AC power on button and circuit is separate from the Mesa entirely in an attempt not to have to reverse engineer the emergency stop, which is on the same board originally.

So my startup procedure is essentially:
LinuxCNC startup, LinuxCNC power on (F2), manually pushing the servo AC power on button, a signal returns to the Mesa board from the drive when AC power on is successful, that signal is linked in HAL to the brake release after a short timedelay.

In many cases, this works just fine. In many, Z falls through. Sometimes after a slight delay, so just when you think it's started up properly and the servo is holding the motor, it still falls through 10 seconds later.

Thanks for the suggestion, though!
How exactly is your servo AC power on handled? My Simodrive is sort of old, as you may see — the servos are 6SN1118-0AD11-0AA1 and the control board is 6SN1121-0BA11-0AA1. 



 

mine are from 1992 (mill) and 1997 (lathe) and judging by the pictures your simodrive looks like new compared to mine, but I had both power supplies repaired and also main spindle drive for lathe and Z axis drive for the mill
red led H1 axis fault is on page 83 and 84 from documentation
adegis.com/media/asset/eb8a4b2af69aebb3f...84e8f10fe17ff0ed.pdf
you can try swapping z and x drive motor connection (and encoder wiring and everything else) to see if it's not your drive that is failing
you said linuxcnc doesn't know that a fault occured so you don't get following error in linuxcnc??
I first power everything, then F2 only sends enable signal to the drives

 
  • tommylight
  • tommylight's Avatar
24 Feb 2026 16:56
Replied by tommylight on topic 7i76EU+7i85+7i84U

7i76EU+7i85+7i84U

Category: Driver Boards

(A and B)?
 

Should be
( A and B )?
-
B with ) is translated to smiley face with glasses ...
  • 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
Displaying 106 - 120 out of 18659 results.
  1. Forum
  3. Search
Time to create page: 0.184 seconds
Powered by Kunena Forum