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  • tommylight
  • tommylight's Avatar
16 Aug 2024 00:42
Replied by tommylight on topic 7i97t with 7i84d connection problem

7i97t with 7i84d connection problem

Category: Driver Boards

You would need a 7i74 to connect up to 8 SSerial boards, besides the one on the 7i97T.
If you can do some simple electronics, do as PCW suggested and get the chip he mentioned, that is much cheaper since you only need one more. If you end up needing more than one, get the 7i74, saves a lot of time and makes for a cleaner control box as it is very easy to wire in.
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
16 Aug 2024 00:11
Replied by Cant do this anymore bye all on topic DEBIAN MIRROR

DEBIAN MIRROR

Category: Installing LinuxCNC

www.reddit.com/r/debian/comments/1blnb0r..._mirrors_what_can_i/
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
16 Aug 2024 00:09
Replied by Cant do this anymore bye all on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

Thought you couldn't read datasheets ?

DIMM or PCIe slots, great way to bump the price up.
  • CNC_Tinkerer
  • CNC_Tinkerer
16 Aug 2024 00:08
Cannot build 2.9.3, get "different exception specifier" was created by CNC_Tinkerer

Cannot build 2.9.3, get "different exception specifier"

Category: General LinuxCNC Questions

I upgraded to Debian 12 and LinuxCNC v2.9.3 and find I can no longer build.

Linux debian2 6.1.0-22-rt-amd64 #1 SMP PREEMPT_RT Debian 6.1.94-1 (2024-06-21) x86_64 GNU/Linux
Downloaded 2.9.3 tarball from git yesterday.

I kept pretty good notes on building with 2.8.x and can't find anything I previously encountered related to this. I can Make just my own code but when I do the full Make I get the following:
user1@debian2:~/linuxcnc-dev/src$ make
Reading 54/210 dependency files
Done reading dependencies
Reading 0/238 realtime dependency files
Done reading realtime dependencies
cp ../scripts/rtapi.conf ../tests/uspace/spawnv-root/rtapi.conf
Compiling rtapi/uspace_rtai.cc
In file included from rtapi/uspace_rtai.cc:10:
/usr/include/x86_64-linux-gnu/sys/io.h:38:12: error: declaration of ‘int iopl(int) noexcept’ has a different exception specifier
   38 | extern int iopl (int __level) __THROW;
      |            ^~~~
In file included from /usr/include/rtai/rtai_lxrt.h:522,
                 from rtapi/uspace_rtai.cc:6:
/usr/include/rtai/asm/rtai_lxrt.h:170:38: note: from previous declaration ‘int iopl(int)’
  170 | #define rtai_iopl()  do { extern int iopl(int); iopl(3); } while (0)
      |                                      ^~~~
/usr/include/rtai/rtai_lxrt.h:605:9: note: in expansion of macro ‘rtai_iopl’
  605 |         rtai_iopl();
      |         ^~~~~~~~~
make: *** [Makefile:288: objects/rtapi/uspace_rtai.o] Error 1

I'd appreciate if someone could suggest how to proceed. This doesn't seem to involve any code under my control.
  • rodw
  • rodw's Avatar
15 Aug 2024 23:52
Replied by rodw on topic Pi4b and Pi5 users - What should go in a 2.9.3 image

Pi4b and Pi5 users - What should go in a 2.9.3 image

Category: Installing LinuxCNC

Curious, does the new .iso include a new Rpi firmware?

Yes, The Pi gets the most recent 6.6.44 kernel
  • rdtsc
  • rdtsc's Avatar
15 Aug 2024 23:36
Replied by rdtsc on topic Pi4b and Pi5 users - What should go in a 2.9.3 image

Pi4b and Pi5 users - What should go in a 2.9.3 image

Category: Installing LinuxCNC

Curious, does the new .iso include a new Rpi firmware?
  • phillc54
  • phillc54's Avatar
15 Aug 2024 23:27
Replied by phillc54 on topic Straight cut error

Straight cut error

Category: Plasmac

Normally you would get that message if you have offset probing enabled and are less than the Y axis offset distance from the Y axis maximum.
These settings are in the .prefs file.
[OFFSET_PROBING]
X axis = 0.0
Y axis = 0.0
If these values are correct could you post the backup file created from the BACKUP button on the SETTINGS tab.
  • cakeslob
  • cakeslob
15 Aug 2024 23:24
Replied by cakeslob on topic Remora for RP2040

Remora for RP2040

Category: Computers and Hardware

Hey Scott, about adding the encoders. The RP2040 W5500 firmware is similar to the STM32 W5500 firmware, in the sense that they both use the pingpong buffer thing. Ive been trying to add encoders/PWM to that firmware, but Im encountering an issue. I dont know where to send the data. There are examples for digital in/out and stepgen stuff, but there is no examples for PV/SP modules. Where ever its going, it should be similar for both firmwares.

Here is my initial attempt at encoders, but I cannot yet get it to compile
github.com/cakeslob/Remora-STM32F4xx-W55.../Src/modules/encoder

Here is what Drew and I were working on for PWM, it compiles, but doesnt yet work either.
github.com/cakeslob/Remora-STM32F4xx-W55...main/Src/modules/pwm

I was wondering if you could give me a few pointers? (pun intended)
But seriously, where do we send the data for PV/SP? The pointers are different than the other versions of remora, and I am stuck.
  • rthorntn
  • rthorntn
15 Aug 2024 22:18 - 15 Aug 2024 22:37
Replied by rthorntn on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

Just to reinforce how messed up this is, the MESA shipping costs for one board to Australia, what an absolute joke: 

RIP you cool, clean, compact, integrated Mecanix board.

In other news, has anyone seen these Analog Crosspoint Switch Array ICs, thinking out loud if they could be useful...AD75019 is pricey but two MT8816 gets you to 16x16 for a lot less money, I ordered four PDIP MT8816 because I couldn't help myself?

Thinking out loud some more (it's what I'm best at, not so great at doing lol) is some kind of generic "slot" based expansion system the way to go, an FPGA backplane board with something like DIMM or MiniPCI slots for IO...jumper wires and ribbon cables be gone!
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
15 Aug 2024 22:14
Replied by Cant do this anymore bye all on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

I’ve installed ISE 14.7 on both Debian Bookworm & Mint 21, trick to get the installer going is to install libncurses5 and after the install to get a licence setup you need to rename your Ethernet port to eth0. To get a licence you need to register with Xilinx now AMD.
  • my1987toyota
  • my1987toyota's Avatar
15 Aug 2024 21:24
Replied by my1987toyota on topic Mostly 3D Printed CNC Foam cutter

Mostly 3D Printed CNC Foam cutter

Category: CNC Machines

here is a youtube video for I think is the originator of the design I based mine off of he also made a
program for generating the G-code to run the thing.  Pretty cool.

 
  • PCW
  • PCW's Avatar
15 Aug 2024 21:16 - 15 Aug 2024 21:31
Replied by PCW on topic MESA 7c81 HELP!

MESA 7c81 HELP!

Category: Driver Boards

You have the PID P terms set so high that they will cause oscillation.

You should use 1/servo-period which is the pncconf default = 1000
for a 1ms servo thread rate.

The physical meaning of a 1/servo thread P term is that position errors
are corrected by the next servo thread invocation. A value of 10000
(with a 1ms servo thread rate) means that a sensed stepgen position
error will be overcorrected by a factor of 9, leading to oscillation.

In addition:

setp hm2_7c81.0.dpll.01.timer-us -50

should probably be changed to

setp hm2_7c81.0.dpll.01.timer-us -200


 
  • waukeenahBob
  • waukeenahBob
15 Aug 2024 21:03
Replied by waukeenahBob on topic MESA 7c81 HELP!

MESA 7c81 HELP!

Category: Driver Boards

Changing the encoders pwm gens and step gens made a HUGE difference...

Not sure I understand why... sounds like I need to do some reading on how that driver or maybe linuxcnc works... recommendations?

My steppers now move... unfortunately they are stuttering and making a horrible noise.... I suspect that is all about tuning the settings. If so can you point me to a document on how to develop the tuning parameters?

THANKS!!
  • RLA
  • RLA
15 Aug 2024 20:54
DEBIAN MIRROR was created by RLA

DEBIAN MIRROR

Category: Installing LinuxCNC

hi...I just installed linuxcnc debian 12 ( bookworm)....had no internet so skipped mirror...now I have connection but do not see how to set up mirror for things I may not have installed as a result on skipping...Thanks,

Rick
  • DiegoVV
  • DiegoVV
15 Aug 2024 20:39 - 15 Aug 2024 20:40
Computer crashes after "Loading initial ramdisk" was created by DiegoVV

Computer crashes after "Loading initial ramdisk"

Category: Installing LinuxCNC

Dear colleagues,I´m invoking here the experts in an attemp to make my PC to boot.

I´ve sucessfully installed the newer Linux cnc version (2.9.3), but when booting after the install, I get a message saying "Loading initial ramdisk", then a short message "x86/cpu: VMX outside TXT) disabled by BIOS" and then the screen turns black and it never recovers.

I´ve tried enabling virtualization in the BIOS, just in case. I´ve tried using a different display output connector......still nothing.

The install has been done on a Lenovo tiny M600.What am I doing wrong? I´m about to throw the pc through the window.
Thank you in advance! 
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