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  • Nathan40
  • Nathan40
24 Mar 2025 18:01
Replied by Nathan40 on topic 7i95 board for 5ABoB(not T or S) firmware missing

7i95 board for 5ABoB(not T or S) firmware missing

Category: Driver Boards

I need stepgens on 2 (step) 3 (direction) , 4 (step) 5 (direction), 6 (step) 7 (direction), 10 11 15 pins as inputs for the pins of 5 Abob.
  • workshop54
  • workshop54
24 Mar 2025 17:59
Struggling to get all encoders to show up on 7i77 via 7i94T was created by workshop54

Struggling to get all encoders to show up on 7i77 via 7i94T

Category: Driver Boards

I've been working on this all day and it's starting to drive me a bit crazy.

I'm using a 7i77 connected through a 7i94T and trying to get at least 3 of the encoders to show up in halcmd show pin. So far, only two encoders are visible.

Here’s what I see:
~/linuxcnc/configs/maho_mh400e$ halcmd show pin | grep 7i77
    26  float OUT             0  hm2_7i94.0.7i77.0.0.analogin0
    26  float OUT             0  hm2_7i94.0.7i77.0.0.analogin1
    26  float OUT             0  hm2_7i94.0.7i77.0.0.analogin2
    26  float OUT             0  hm2_7i94.0.7i77.0.0.analogin3
    26  s32   OUT             0  hm2_7i94.0.7i77.0.0.enc0.count
    26  bit   I/O         FALSE  hm2_7i94.0.7i77.0.0.enc0.index-enable
    26  float OUT             0  hm2_7i94.0.7i77.0.0.enc0.position
    26  s32   OUT             0  hm2_7i94.0.7i77.0.0.enc0.rawcounts
    26  bit   I/O         FALSE  hm2_7i94.0.7i77.0.0.enc0.reset
    26  s32   OUT             0  hm2_7i94.0.7i77.0.0.enc1.count
    26  bit   I/O         FALSE  hm2_7i94.0.7i77.0.0.enc1.index-enable
    26  float OUT             0  hm2_7i94.0.7i77.0.0.enc1.position
    26  s32   OUT             0  hm2_7i94.0.7i77.0.0.enc1.rawcounts
    26  bit   I/O         FALSE  hm2_7i94.0.7i77.0.0.enc1.reset
    26  float OUT      25.02753  hm2_7i94.0.7i77.0.0.fieldvoltage
    26  bit   OUT         FALSE  hm2_7i94.0.7i77.0.0.input-00
    26  bit   OUT          TRUE  hm2_7i94.0.7i77.0.0.input-00-not
    // omitted other input pins for brevity
    26  bit   IN          FALSE  hm2_7i94.0.7i77.0.0.output-00
    // omitted other output pins for brevity
    26  bit   IN          FALSE  hm2_7i94.0.7i77.0.1.analogena
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout0
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout1
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout2
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout3
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout4
    26  float IN              0  hm2_7i94.0.7i77.0.1.analogout5
    26  bit   IN          FALSE  hm2_7i94.0.7i77.0.1.spinena

I’ve double-checked the firmware:
~/linuxcnc/configs/maho_mh400e$ mesaflash —device 7i94t —addr 192.168.1.121 —readhmid
Configuration Name: HOSTMOT2

General configuration information:

  BoardName : MESA7I94
  FPGA Size: 20 KGates
  FPGA Pins: 256
  Number of IO Ports: 2
  Width of one I/O port: 21
  Clock Low frequency: 100.0000 MHz
  Clock High frequency: 175.0000 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 2 of IOPort in configuration
  Version: 0
  Registers: 5
  BaseAddress: 1000
  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 Expansion+Serial 0..1 -> 7I94_0
Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

P1-01/DB25-01           0   IOPort       SSerial          0        TXEn2           (Out)
P1-02/DB25-14           1   IOPort       SSerial          0        TXData2         (Out)
P1-03/DB25-02           2   IOPort       SSerial          0        RXData2         (In)
P1-04/DB25-15           3   IOPort       SSerial          0        TXData1         (Out)
P1-05/DB25-03           4   IOPort       SSerial          0        RXData1         (In)
P1-06/DB25-16           5   IOPort       SSerial          0        TXData0         (Out)
P1-07/DB25-04           6   IOPort       SSerial          0        RXData0         (In)
P1-08/DB25-17           7   IOPort       MuxedQCountSel   0        MuxSel0         (Out)
P1-09/DB25-05           8   IOPort       MuxedQCount      0        MuxQ-A          (In)
P1-11/DB25-06           9   IOPort       MuxedQCount      0        MuxQ-B          (In)
P1-13/DB25-07          10   IOPort       MuxedQCount      0        MuxQ-IDX        (In)
P1-15/DB25-08          11   IOPort       MuxedQCount      1        MuxQ-A          (In)
P1-17/DB25-09          12   IOPort       MuxedQCount      1        MuxQ-B          (In)
P1-19/DB25-10          13   IOPort       MuxedQCount      1        MuxQ-IDX        (In)
P1-21/DB25-11          14   IOPort       MuxedQCount      2        MuxQ-A          (In)
P1-23/DB25-12          15   IOPort       MuxedQCount      2        MuxQ-B          (In)
P1-25/DB25-13          16   IOPort       MuxedQCount      2        MuxQ-IDX        (In)
J6 1,2                 17   IOPort       SSerial          0        RXData3         (In)
J6 3,6                 18   IOPort       SSerial          0        TXData3         (Out)
J6 TXEN                19   IOPort       SSerial          0        TXEn3           (Out)
J7 1,2                 20   IOPort       SSerial          0        RXData4         (In)

IO Connections for Serial 1..7 -> 7I94_1
Pin#                  I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

J7-3,6                 21   IOPort       SSerial          0        TXData4         (Out)
J7-TXEN                22   IOPort       SSerial          0        TXEn4           (Out)
J8-1,2                 23   IOPort       SSerial          0        RXData5         (In)
J8-3,6                 24   IOPort       SSerial          0        TXData5         (Out)
J8-TXEN                25   IOPort       SSerial          0        TXEn5           (Out)
J9-1,2                 26   IOPort       SSerial          0        RXData6         (In)
J9-3,6                 27   IOPort       SSerial          0        TXData6         (Out)
J9-TXEN                28   IOPort       SSerial          0        TXEn6           (Out)
J4-1,2                 29   IOPort       SSerial          0        RXData7         (In)
J4-3,6                 30   IOPort       SSerial          0        TXData7         (Out)
J4-TXEN                31   IOPort       SSerial          0        TXEn7           (Out)
J3-1,2                 32   IOPort       None           
J3-3,6                 33   IOPort       None           
J3-TXEN                34   IOPort       None           
J2-1,2                 35   IOPort       None           
J2-3,6                 36   IOPort       None           
J2-TXEN                37   IOPort       None           
J1-1,2                 38   IOPort       None           
J1-3,6                 39   IOPort       None           
J1-TXEN                40   IOPort       None           
P2-/ENA                41   IOPort       None

My HAL config includes:
loadrt hm2_eth board_ip=192.168.1.121 config=”sserial_port_0=300xxx”

The SmartSerial section seems to be working fine; analog IOs and digital IOs show up correctly.

But I expected more encoders from the 7i77 to appear — at least enc2..enc4 — and I can’t figure out what I’m missing. Is there anything I need to change in the firmware, or is my HAL config wrong?

Any help would be very appreciated. I’m just trying to get basic encoder feedback working for now before wiring up the rest.

Thanks in advance!
  • PCW
  • PCW's Avatar
24 Mar 2025 17:57 - 24 Mar 2025 18:02
Replied by PCW on topic 7i95 board for 5ABoB(not T or S) firmware missing

7i95 board for 5ABoB(not T or S) firmware missing

Category: Driver Boards

What I/O do you actually need?
 
The 7I95 is fairly limited so a full 5ABOB configuration will not fit.

5ABOB inputs will be available with the standard firmware
as are GPIO outputs. It may be possible to make a configuration
that fits and does what you need by eliminating unused features.

 
  • PCW
  • PCW's Avatar
24 Mar 2025 17:54
Replied by PCW on topic correspondence of unused i/o pins to physical connector location?

correspondence of unused i/o pins to physical connector location?

Category: PnCConf Wizard

No, the driver will not allow that unless you disable the encoder function
and the encoder pins are always inputs on a 7I96s (hardware determined)
  • mclien
  • mclien
24 Mar 2025 17:45
Replied by mclien on topic Any experience with cnc-step machines?

Any experience with cnc-step machines?

Category: Milling Machines

As the topic is quite changed from the original question it felt better to start a new topic with the new approach:
forum.linuxcnc.org/12-milling/55747-how-to-build-a-cnc-mill
  • mclien
  • mclien
24 Mar 2025 17:44 - 25 Mar 2025 09:49
How to build a CNC Router? was created by mclien

How to build a CNC Router?

Category: Milling Machines

As my somewhat naive start into the topic in this thread:
forum.linuxcnc.org/12-milling/55699-any-...th-cnc-step-machines?
has mostly changed into another direction, I open a new one.
The goal is to end up with a machine able to work mostly flat wooden material mostly up to 27mm thickness with a working area of about 1500x1000mm. (Most likely by buying a made ready chassis and fit it with the desired motors, drvers, controller, spindel/router)
As it is -as several members mentioned in the other thread- kinda unwise to dump a few 1000 bugs directly. I decided to take a less costly path first. As I would love to have some use other than learning I'm thinking of this approach:
-getting a small, used desktop sized 3-axis mill chassis (around 200x200mm) with steppers and start from there
-purpose would be something like prototype PCB milling, some small wood pendant engraving
After I have that running turn to the larger machine, with the lessons learned from the mall one.
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