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20 Nov 2023 09:09 - 20 Nov 2023 12:02
Replied by diy on topic Raspberry Pi GPIO Conversion CNC Software

Raspberry Pi GPIO Conversion CNC Software

Category: Other Languages

Software Download
 
 

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File Name: CNC3.1_202...20-3.zip
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20 Nov 2023 09:06 - 20 Nov 2023 11:55
Raspberry Pi GPIO Conversion CNC Software was created by diy

Raspberry Pi GPIO Conversion CNC Software

Category: Other Languages

我是一个CNC爱好者，创建了一个树莓派接口板，并编写了一个树莓派GPIO转换linuxCNC程序。欢迎使用。使用起来非常简单。您为 Raspberry Pi 定义的 GPIO 引脚输出 1，所有使用的引脚均为 0，将自动计算。我已经安装了 2.91 版本并编辑了 HAL 和 ini 配置文件，它们功能齐全，可以返回原点，可以连接手轮，并且可以用于 PWM 主轴。（英语不好，翻译）

 
 
 
 
 

软件下载
20 Nov 2023 08:05
Replied by rodw on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

There have been a few things about the screen I have seen but can't remember where. Ther is a boot parameter to set 1080p instead of the 4k default. I'm sure when there are a few more about, these will be fixed.
20 Nov 2023 07:20
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Just tried running a config with RPi5 using hm2_spi (hm2_rpspi is not an option ATM), completely effing useless. Constant SPI timeouts.

Went back to the RPi-400 using the hm2_spi driver no issues at all.

As I'm not in a position to test an ethernet card I really can't give an opinion regarding that option. But honestly unless you are strapped for space (wanna small foot print)I'd avoid the Rpi5 for Linuxcnc ATM.

Really disappointed with it in that regard.
20 Nov 2023 06:48
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Boots but.......

gets stuck in 640x480 video mode, checking the kernel cmdline via dmesg after boot it seem to be setting bcm2708 frame buffer to 640x480.

Now I haven't ready access to a hmdi monitor so using a hdmi to dvi adapter.

Same adapter works fine with the RP-400 & RPi-5 with raspberry pi image I've been using.
20 Nov 2023 05:16
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Yes of course there is rod’s Image.
Sorry mate I completely forgot.

I’ve done a few rip builds and built a set of Linuxcnc packages on the thing, even without a super fast SD card it’s quick.

Just ordered a hat that takes a m.2 drive that uses the PCIe connector, so should be interesting.

Ok rod gunna test your image.
20 Nov 2023 05:00 - 20 Nov 2023 05:01
Replied by rodw on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

And one other thing until an image for linuxcnc is finialised you will have to build your own kernel using the RPi kernel source and this kernel patch "patch-6.1.59-rt16.patch". Yes there is a slight mismatch in the kernel & RT patch version but so far it seems to work, and there's no errors patching the kernel source code
 

Well there is an image here crying out for testing. Its based on the official 2.9.1 image for the PI 4B just compiled for the different BCM2112 board.It should work based on cornhlio's comments.

drive.google.com/file/d/1H_q0Ra-27ZDOhqu...x1f/view?usp=sharing
20 Nov 2023 00:47
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

First of the RPi-5 is quick, but be sure to get the alloy heatsink & fan cos it'll get hot.

RPi-5 may be ok for one of the Mesa Ethernet boards (hopefully) but I wouldn't plan on using an SPI based boards ie 7c80, 7c81 or 7i90 as the spi driver is a no go. The hm2_spi needs patching to use 8 bit words only, well as my experiments have shown, the hm2_rpspi driver may need more info of the RP1 io chip to be released. One other thing on note the RP1 datasheet claims latency of 1us between the CPU & the RP1.
Even mesaflash needs some work. It's ok for writing a bit file, but for any other usage on the RPi5 it doesn't work out of the box.

So I do have one but I wouldn't run out and get on for use with Linuxcnc ATM. I almost regret my purchase but at least I can relay my experience to others.
And one other thing until an image for linuxcnc is finialised you will have to build your own kernel using the RPi kernel source and this kernel patch "patch-6.1.59-rt16.patch". Yes there is a slight mismatch in the kernel & RT patch version but so far it seems to work, and there's no errors patching the kernel source code.
19 Nov 2023 23:43
Replied by tommylight on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

You are welcomed, always, make yourself at home! :)
My advice, use the existing PC's and stay away from RPI-anything.
You can freely ignore my advice, or thank me later! :)
19 Nov 2023 23:13
Replied by flyingbrick on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

I'm new here. You guys are amazing to be honest.

On the fence about buying a Pi5 rather than using one of my existing PC's for my first controller, I guess I'll wait a few weeks (need to truck my new machine home) and see how we are going then.

Thanks again, what a great community here.
19 Nov 2023 21:51
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Only by building Linuxcnc yourself and patching the code for the hm2_spi driver.
I think it’s going to be a low priority for the devs unless someone who’s name ain’t mud makes some noise about it.

So mate it looks like it’s going to be up to you.
19 Nov 2023 18:16
Replied by Calysto on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Does that mean we can use a mesa-spi card together with a rpi5? Tomorrow I will try mine (7c80). The image rodw made, looks and works promising!
On a Rpi4 a could not make use of USB3 speed together with my SSD, now I can!
18 Nov 2023 10:54
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Update to forum.linuxcnc.org/9-installing-linuxcnc...pi-5?start=20#285814

patched hm2_spi to force 8 bit words and driver does load.
18 Nov 2023 10:47
Replied by cornholio on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Neither does hm2_spi work.
alcmd: loadrt hostmot2
Note: Using POSIX realtime
hm2: loading Mesa HostMot2 driver version 0.15
halcmd: loadrt hm2_spi spidev_path=/dev/spidev0.1 
probe 24000000
hm2/hm2_7i90.0: Low Level init 0.15
hm2/hm2_7i90.0: invalid IDROM PortWidth 0, this board has 24 pins per connector, aborting load
hm2/hm2_7i90.0: IDRom:
hm2/hm2_7i90.0:     IDRom Type: 0x9009374D
hm2/hm2_7i90.0:     Offset to Modules: 0x00184803
hm2/hm2_7i90.0:     Offset to Pin Description: 0x00400400
hm2/hm2_7i90.0:     Board Name: 
hm2/hm2_7i90.0:     FPGA Size: 0
hm2/hm2_7i90.0:     FPGA Pins: 0
hm2/hm2_7i90.0:     Port Width: 0
hm2/hm2_7i90.0:     IO Ports: 0
hm2/hm2_7i90.0:     IO Width: 0
hm2/hm2_7i90.0:     Clock Low: 0 Hz (0 KHz, 0 MHz)
hm2/hm2_7i90.0:     Clock High: 0 Hz (0 KHz, 0 MHz)
hm2/hm2_7i90.0:     Instance Stride 0: 0x00000000
hm2/hm2_7i90.0:     Instance Stride 1: 0x00000000
hm2/hm2_7i90.0:     Register Stride 0: 0x00000000
hm2/hm2_7i90.0:     Register Stride 1: 0x00000000
hm2_spi: rtapi_app_main: Invalid argument (-22)
<stdin>:2: waitpid failed /home/cnc/linuxcnc-dev/bin/rtapi_app hm2_spi
<stdin>:2: /home/cnc/linuxcnc-dev/bin/rtapi_app exited without becoming ready
<stdin>:2: insmod for hm2_spi failed, returned -1

I had to patch the mesaflash code to use 8 bit words to even get that to talk to a 7i90
18 Nov 2023 10:06 - 18 Nov 2023 11:42
Replied by Calysto on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

What's the difference between hm2_rpspi and hm2_spi? As far as I know I only use hm2_spi.

edit:
answer:"The hm2_rpspi HAL driver does not use /dev/spi, instead it enables and
talks to the SPI hardware directly, so it works even if the Linux kernel
doesn't know about the SPI hardware."

But why shouldn't you use the linux-kernel for talking to your mesa card? Speed?
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