Welcome to LiteX-CNC Discussions! #35
Replies: 13 comments 71 replies
-
|
Hello |
Beta Was this translation helpful? Give feedback.
-
|
Yes, you can! As a board you should select version 6.0, as it's pinout is the same. |
Beta Was this translation helpful? Give feedback.
-
|
Thanks |
Beta Was this translation helpful? Give feedback.
-
|
Hello, I have a problem. 5A-75E card, flashed and ping ok. cnc@cnc:~$ halrun |
Beta Was this translation helpful? Give feedback.
-
|
You have two times the command loadrt litexcnc. One on the first line and the second with the connection string. You cannot load two times the same module in LinuxCNC / HAL. Solution: remove the first line. So the commands would start with: |
Beta Was this translation helpful? Give feedback.
-
|
If this an error in the documentation, please point me to it. Then I can correct it for future users. |
Beta Was this translation helpful? Give feedback.
-
|
Thank you! |
Beta Was this translation helpful? Give feedback.
-
|
Maybe it should be specified in the documentation that it should only be used once. |
Beta Was this translation helpful? Give feedback.
-
|
Will take it into consideration fort the next iteration of the documentation. Thanks! |
Beta Was this translation helpful? Give feedback.
-
|
I get this error while installing, can anyone tell me how to fix it? |
Beta Was this translation helpful? Give feedback.
-
|
|
Beta Was this translation helpful? Give feedback.
-
|
The distribution you use doesn't have Also I see that OSS-CAD-Suite detected |
Beta Was this translation helpful? Give feedback.
-
|
|
Beta Was this translation helpful? Give feedback.
-
|
|
Beta Was this translation helpful? Give feedback.
-
|
The detection of the architecture is not going well. I will make a issue out of that one. To install the toolchain in your case, you can use: litexcnc install_toolchain --user -a x64 |
Beta Was this translation helpful? Give feedback.
-
|
(Also, remember you require a USB blaster of FT232R for flashing the firmware to your card.) |
Beta Was this translation helpful? Give feedback.
-
|
I am confused to find the pins, can you tell me how to name the pins on the board. |
Beta Was this translation helpful? Give feedback.
-
|
Use the pins on the pin header of your Ft232r, not the side. Good you checked! Disregard numbers, look at the text. |
Beta Was this translation helpful? Give feedback.
-
|
I'm sorry Peter, I realized my mistake |
Beta Was this translation helpful? Give feedback.
-
|
For reference:
Easiest way is to add a pin header and use jumper wires. |
Beta Was this translation helpful? Give feedback.
-
|
I created an issue (#78) to solve the problems and to improve documentation. |
Beta Was this translation helpful? Give feedback.
-
|
https://litex-cnc.readthedocs.io/en/latest/examples/index.html I would like to start with the example provided in the link above. First, I ran the following command
And then the following command
|
Beta Was this translation helpful? Give feedback.
-
|
There are 2 (two) ethernet ports on your 5a-75. You must be patched into the port near to the green 5v screw-in connector. It took me quite a while to figure out why I was getting similar pingless result when I began, to find out only one port is enabled and I was patched in the wrong one. |
Beta Was this translation helpful? Give feedback.
-
|
I think I connected correctly |
Beta Was this translation helpful? Give feedback.
-
|
Later today I will start my old desktop PC and copy the exact settings. I've the feeling that the USB internet and the Ethernet adapter don't play nicely together. Which is I'm afraid outside my knowledge, because I have UTP wired Ethernet and Wifi. This is because either the card works or the internet works... Hopefully it will be resolved with the settings from the desktop. |
Beta Was this translation helpful? Give feedback.
-
|
Thank you Peter |
Beta Was this translation helpful? Give feedback.
-
|
According to my experience in using Mach3 controller and Windows |
Beta Was this translation helpful? Give feedback.
-
|
Finally, after many efforts and the help of dear Peter, I managed to flash the firmware on the board. |
Beta Was this translation helpful? Give feedback.
-
|
Yes, this problem still exists, but I will try to search about it |
Beta Was this translation helpful? Give feedback.
-
|
Peter, can you tell me what I should do to test the encoder and step generation? |
Beta Was this translation helpful? Give feedback.
-
|
I can give you an example tomorrow evening; today too busy with work. If you want to experiment yourself, see examples on the documentation: |
Beta Was this translation helpful? Give feedback.
-
|
Next week I have a CNC convention, where I'll show LitexCNC and the sister-project HUB75HAT. For this convention I prepared a demo using a RaspberryPi, HUB75HAT, a 5A-75B and 2 BOBS for stepgen and encoders. The goal is to let a stepper motor follow the position of a encoder, so users can experience it workings. If you want to try this out with a PC, you have to change the configuration of the connection and the pins. The pins in this example are the default configs for HUB75HAT. Configuration: {
"board_name": "STEPGEN_ENCODER",
"board_type": "HUB75HAT v8.0",
"clock_frequency": 35000000,
"connection": {
"connection_type": "spi",
"mosi": "spi:0",
"miso": "spi:1",
"clk": "spi:2",
"cs_n": "spi:3"
},
"watchdog": {
"pin":"ena:0"
},
"modules": [
{
"module_type": "gpio",
"instances": [
{"direction": "out", "pin":"j1:1" , "name":"STEPGEN_ENA"},
{"direction": "in", "pin":"j1:10", "name":"AXIS1_OK" },
{"direction": "in", "pin":"j1:11", "name":"AXIS2_OK" },
{"direction": "in", "pin":"j1:12", "name":"AXIS3_OK" },
{"direction": "in", "pin":"j1:13", "name":"AXIS4_OK" },
{"direction": "in", "pin":"j1:14", "name":"AXIS1_HOME" },
{"direction": "in", "pin":"j1:15", "name":"AXIS2_HOME" },
{"direction": "in", "pin":"j1:16", "name":"AXIS3_HOME" },
{"direction": "in", "pin":"j1:17", "name":"AXIS4_HOME" }
]
},
{
"module_type": "stepgen",
"instances": [
{
"name" : "AXIS1",
"pins" : {
"stepgen_type": "step_dir",
"step_pin": "j1:2",
"dir_pin": "j1:6"
},
"soft_stop": true
},{
"name" : "AXIS2",
"pins" : {
"stepgen_type": "step_dir",
"step_pin": "j1:3",
"dir_pin": "j1:7"
},
"soft_stop": true
},{
"name" : "AXIS3",
"pins" : {
"stepgen_type": "step_dir",
"step_pin": "j1:4",
"dir_pin": "j1:8"
},
"soft_stop": true
},{
"name" : "AXIS4",
"pins" : {
"stepgen_type": "step_dir",
"step_pin": "j1:5",
"dir_pin": "j1:9"
},
"soft_stop": true
}
]
},
{
"module_type": "encoder",
"instances": [
{
"name": "AXIS1",
"pin_A": "j2:2",
"pin_B": "j2:6",
"pin_Z": "j2:10"
}, {
"name": "AXIS2",
"pin_A": "j2:3",
"pin_B": "j2:7",
"pin_Z": "j2:11"
}, {
"name": "AXIS3",
"pin_A": "j2:4",
"pin_B": "j2:8",
"pin_Z": "j2:12"
}, {
"name": "AXIS4",
"pin_A": "j2:5",
"pin_B": "j2:9",
"pin_Z": "j2:13"
}
]
}
]
}When compiling, I use the You can make this show-case more fancy, for example by adding ILOWPASS. To run this example in HAL, run the following command: halrun -I encoder_setpgen.hal |
Beta Was this translation helpful? Give feedback.
-
|
thanks |
Beta Was this translation helpful? Give feedback.
-
|
hello peter |
Beta Was this translation helpful? Give feedback.
-
|
I prefer a different approach:
The bypasses can be found here: https://github.com/Peter-van-Tol/LITEXCNC-HUB75HAT/tree/main/src/HC245T_BYPASS On this page there is also description on how to solder these bypasses. Depending on your location, you can either order a set of bypasses from PCBWAY or JLCPCB or I can send a set to you (Europe only, postage at your expense). |
Beta Was this translation helpful? Give feedback.
-
|
Peter, can you send me the editable Altium file that only shows the position of the 5A-75E connectors on it? |
Beta Was this translation helpful? Give feedback.
-
|
In the previously mentioned repository you can find a KiCAD file for the 5A-75B. That's the only file I have. Due to the high number of connectors I had another approach for the 5A-75E. These are separate breakout boards. See this repo for that approach: https://github.com/Peter-van-Tol/HUB-75-boards |
Beta Was this translation helpful? Give feedback.
-
|
When I close the linuxcnc program and open it again, I encounter this error |
Beta Was this translation helpful? Give feedback.
-
|
This problem has been resolved in version 1.2.2 of LitexCNC, released a few days ago. You can install it with: pip3 install -U litexcnc
sudo env "PATH=$PATH" litexcnc install_driver |
Beta Was this translation helpful? Give feedback.
-
|
I installed the driver successfully, but the following commands give an error |
Beta Was this translation helpful? Give feedback.
-
|
What's the error you get? Please paste it here in a code block. |
Beta Was this translation helpful? Give feedback.
-
|
Beta Was this translation helpful? Give feedback.
-
|
Thanks for reporting. There is a new version now available on PyPi.org. |
Beta Was this translation helpful? Give feedback.
-
|
Which 5A-75E V8.2 board pins should I use for SPI communication with Raspberry Pi 4?
|
Beta Was this translation helpful? Give feedback.
-
|
You can choose any pin on the FPGA which you like. As long as you connect the SPI pins from the RPi to it. I have chosen in HUB75HAT and the examples to use the common pins for this purpose. |
Beta Was this translation helpful? Give feedback.
-
|
hello peter
I get this error while installing toolchain and the installation stops
|
Beta Was this translation helpful? Give feedback.
-
|
### Tested on Debian 12 Bookworm. $ sudo apt install python3-pip python3.11-venv Make oss path permanent$ cd ~
|
Beta Was this translation helpful? Give feedback.
-
|
I have been facing a strange problem in using Litex for some time. |
Beta Was this translation helpful? Give feedback.
-
|
This is unrelated to litexcnc and linuxcnc but electrical/residual in nature. You'd probably have better luck with troubleshooting this by seeking advice from an electrical engineering venue. |
Beta Was this translation helpful? Give feedback.
-
|
For homing, I also have a problem using the encoder index pulse |
Beta Was this translation helpful? Give feedback.
-
|
Are you absolutely certain that you are talking about the same issue? In what world can you home a machine when the software and hardware pwr switch are disabled as per your claim. I can't be any more lost and confused, how can anyone help in these circumstances? This is a Welcome To! thread. You're not even posting in the correct section, what are you trying to achieve Ehsan?? |
Beta Was this translation helpful? Give feedback.
-
|
I apologize 123-2024-05-08_14.55.00.mp4 |
Beta Was this translation helpful? Give feedback.
-
|
Does anyone know where Peter is? |
Beta Was this translation helpful? Give feedback.
-
👋 Welcome!
We’re using Discussions as a place to connect with other members of our community. We hope that you:
To get started, comment below with an introduction of yourself and tell us about what you do with this community.
When using
litexcncfeel free to share a picture below, share your experience and suggest improvements. You can off-course also create a topic to share your configuration as inspiration for others and show-off your creations.Beta Was this translation helpful? Give feedback.
All reactions