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  • mmt
  • mmt
24 Mar 2025 22:24
Replied by mmt on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration

that worked sorry for the mix up

thank you
  • PCW
  • PCW's Avatar
24 Mar 2025 22:16
Replied by PCW on topic 7I97T joint following error

7I97T joint following error

Category: General LinuxCNC Questions

Yes, at motor 2400 RPM the ballscrew would turn at 1200 RPM (20 TPS)
and 20 TPS * 0.2 IPT = 4 IPS
  • PCW
  • PCW's Avatar
24 Mar 2025 22:06
Replied by PCW on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration

That's the plasma config, the configuration with 2 PWMgens per 7I76 is:

5i25_7i76x2_2pd.bit


 
  • aharner
  • aharner
24 Mar 2025 22:03
Replied by aharner on topic Connecting Mesa 7i76 to Sprint 1200 DC Controller

Connecting Mesa 7i76 to Sprint 1200 DC Controller

Category: General LinuxCNC Questions

Yes I do.  I have the right hand side of the Sprint all taken care of, its the low voltage/control side that I cant figure out.  Thanks in advance for your help.
  • mmt
  • mmt
24 Mar 2025 21:51
Replied by mmt on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration

yes i did power it 
  • Evgen
  • Evgen
24 Mar 2025 21:49
Replied by Evgen on topic scurve trajectory planner

scurve trajectory planner

Category: General LinuxCNC Questions

Hello! I have intersting problem. I use solidcam iMachining procedures for milling. With ordinary TP I have some strange deaccelerations and my servos don't like it. Then I check your tp, it try to stop every g-code segment. I can't understand where is problem. Help me, please. White screenshot - new tp, black - ordinary tp. All tests on pictures are in simulation.
  • Tinker
  • Tinker
24 Mar 2025 21:45
Replied by Tinker on topic 7I97T joint following error

7I97T joint following error

Category: General LinuxCNC Questions

Basically 4 IPS would be my scale number if I'm understanding you correctly..
  • Tinker
  • Tinker
24 Mar 2025 21:42
Replied by Tinker on topic 7I97T joint following error

7I97T joint following error

Category: General LinuxCNC Questions

So say my servos are 2400 RPM @10V with 2/1 reduction and 5 tpi ball screws, would that be the basic formula used to come up with velocity in IPS?
  • tommylight
  • tommylight's Avatar
24 Mar 2025 21:41
Replied by tommylight on topic New Computer - Error Launching

New Computer - Error Launching

Category: Advanced Configuration

test-4x4_1742871679.hal
That is the hal for the 6i25/5i25 so why are you using the other one made for parallel port?
  • PCW
  • PCW's Avatar
24 Mar 2025 21:29
Replied by PCW on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration

That's a normal 7I76x2 configuration

I'll check the firmware

Did you power cycle the PC after loading the firmware?
 
  • tylernyberg
  • tylernyberg
24 Mar 2025 21:22
Replied by tylernyberg on topic New Computer - Error Launching

New Computer - Error Launching

Category: Advanced Configuration

I deleted the set spindle-at-speed from HAL file and it loaded, but there is no spindle control in GUI and it reads no paport registered at 0xe030 in corner. I wasn't able to resolve spindle speed issue by editing the HAL.

There is no communication between computer and CNC as when I jog, the machine isn't moving. The 7I76 card has it's 2 yellow power indicator lights lit. There is no green blinking or red fault light on the card.

I have posted the INI and HAL files.
  • mmt
  • mmt
24 Mar 2025 21:13
Replied by mmt on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration 

 sudo mesaflash --device 5i25 --readhmid
[sudo] password for pdt:
Configuration Name: HOSTMOT2

General configuration information:

  BoardName : MESA5I25
  FPGA Size: 9 KGates
  FPGA Pins: 144
  Number of IO Ports: 2
  Width of one I/O port: 17
  Clock Low frequency: 33.3333 MHz
  Clock High frequency: 200.0000 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: 33.333 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: 33.333 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: 33.333 MHz
  Register Stride: 256 bytes
  Instance Stride: 4 bytes

  Module: QCount
  There are 4 of QCount in configuration
  Version: 2
  Registers: 5
  BaseAddress: 3000
  ClockFrequency: 33.333 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: 33.333 MHz
  Register Stride: 256 bytes
  Instance Stride: 64 bytes

  Module: StepGen
  There are 10 of StepGen in configuration
  Version: 2
  Registers: 10
  BaseAddress: 2000
  ClockFrequency: 33.333 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: 33.333 MHz
  Register Stride: 256 bytes
  Instance Stride: 4 bytes

Configuration pin-out:

IO Connections for P3
DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir

 1                      0   IOPort       StepGen          0        Dir/Table2      (Out)
14                      1   IOPort       StepGen          0        Step/Table1     (Out)
 2                      2   IOPort       StepGen          1        Dir/Table2      (Out)
15                      3   IOPort       StepGen          1        Step/Table1     (Out)
 3                      4   IOPort       StepGen          2        Dir/Table2      (Out)
16                      5   IOPort       StepGen          2        Step/Table1     (Out)
 4                      6   IOPort       StepGen          3        Dir/Table2      (Out)
17                      7   IOPort       StepGen          3        Step/Table1     (Out)
 5                      8   IOPort       StepGen          4        Dir/Table2      (Out)
 6                      9   IOPort       StepGen          4        Step/Table1     (Out)
 7                     10   IOPort       SSerial          0        TXData0         (Out)
 8                     11   IOPort       SSerial          0        RXData0         (In)
 9                     12   IOPort       SSerial          0        TXData1         (Out)
10                     13   IOPort       SSerial          0        RXData1         (In)
11                     14   IOPort       QCount           2        Quad-A          (In)
12                     15   IOPort       QCount           1        Quad-A          (In)
13                     16   IOPort       QCount           0        Quad-A          (In)

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

 1                     17   IOPort       StepGen          5        Dir/Table2      (Out)
14                     18   IOPort       StepGen          5        Step/Table1     (Out)
 2                     19   IOPort       StepGen          6        Dir/Table2      (Out)
15                     20   IOPort       StepGen          6        Step/Table1     (Out)
 3                     21   IOPort       StepGen          7        Dir/Table2      (Out)
16                     22   IOPort       StepGen          7        Step/Table1     (Out)
 4                     23   IOPort       StepGen          8        Dir/Table2      (Out)
17                     24   IOPort       StepGen          8        Step/Table1     (Out)
 5                     25   IOPort       StepGen          9        Dir/Table2      (Out)
 6                     26   IOPort       StepGen          9        Step/Table1     (Out)
 7                     27   IOPort       SSerial          0        TXData2         (Out)
 8                     28   IOPort       SSerial          0        RXData2         (In)
 9                     29   IOPort       SSerial          0        TXData3         (Out)
10                     30   IOPort       SSerial          0        RXData3         (In)
11                     31   IOPort       QCount           3        Quad-IDX        (In)
12                     32   IOPort       QCount           3        Quad-B          (In)
13                     33   IOPort       QCount           3        Quad-A          (In)
  • PCW
  • PCW's Avatar
24 Mar 2025 21:08
Replied by PCW on topic neeed help with additional pwm 6i25 and 7i76

neeed help with additional pwm 6i25 and 7i76

Category: Basic Configuration

What does

sudo mesaflash --device 5i25 --readhmid

report?
 
  • PCW
  • PCW's Avatar
24 Mar 2025 21:05
Replied by PCW on topic Connecting Mesa 7i76 to Sprint 1200 DC Controller

Connecting Mesa 7i76 to Sprint 1200 DC Controller

Category: General LinuxCNC Questions

Do you have some documentation on the Sprint 1200 connections?
Just knowing the names is not enough to know how to connect them.
  • aharner
  • aharner
24 Mar 2025 20:43
Connecting Mesa 7i76 to Sprint 1200 DC Controller was created by aharner

Connecting Mesa 7i76 to Sprint 1200 DC Controller

Category: General LinuxCNC Questions

Good evening.  I am not sure if this is the right area to ask this question, but here goes.  I am converting a Novaturn lathe that has a Sprint 1200 (400) DC motor controller and I am using a Mesa 7i76U to handle the connections.  I have the steppers moving properly, the e stop and limits working properly but am very apprehensive about connecting to the Sprint 1200 because I dont want to damage anything.  Anyway, after days of reading, testing, and more reading I am finally reaching out for help.  Does anyone know the correct wiring to connect the 7i76 (TB4) spindle connectors to the appropriate Sprint connectors?  I need to be able to turn the motor on, adjust speed, etc.  The motor does not reverse.  The contacts on the Sprint are (1) +10, (2) MIN, (3) I/P, 4 COM, (5) RUN, (6) TACH, (7) COM.  Any guidance would be appreciated.
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