ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
27 Feb 2022 16:23 #235928
by jmelson
Jon
Replied by jmelson on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
I had a "root kit" installed on one of my systems decades ago. It added malicious code to a number of executables on my system. Once, when I logged in remotely and needed to do some system task, then that executable took advantage of the higher priviledge and wrecked the whole system. It was a big security wake-up call. and, of course, a simple typo can have disasterous effects when you are in su mode all the time.
First of all running as root is a really bad idea.
Why ?
Many peoples tell me "it is bad idea", but nobody can tell why ...
Linux is not windows, it has it's own way of doing things ... not important.
Running as a normal user in case of /infection/attack/mess up/exploit/ there is no easy way of installing additional code and make it run in Linux or have access to system /files/memory/hardware/, while running as Root the doors are already opened.
I am not good at explaining stuff, but in general, it is not a good idea to run as root although chances are very low that something will actually happen if you do not click and run unknown stuff/links/software/
Jon
The following user(s) said Thank You: tommylight
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27 Feb 2022 17:31 #235931
by tuxcnc
Now I'm fighting with nextpnr-ecp5 installation.
The colorlight_5a_75b.py already works.
Replied by tuxcnc on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
Thanks.Litex supports at least V8.0 of the 5A-75B board.
The colorlight_5a_75b.py from romanetz (THANK YOU!) can also be used on a 5A-75B V8.0 board when you change near line 348
platform = colorlight_5a_75b.Platform()
to
platform = colorlight_5a_75b.Platform(revision="8.0")
This will change the pinout for ethernet etc. to V8.0
Colorcnc not yet working but I can connect to the board.
Now I'm fighting with nextpnr-ecp5 installation.
The colorlight_5a_75b.py already works.
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27 Feb 2022 17:36 - 27 Feb 2022 17:38 #235932
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
Installation of litex and oss-cad-suite
First remove your current installation, the way you do it is up to you
Litex
OSS-CAD-SUITE
Add the following to ~/.profile
Logout and log back in.
First remove your current installation, the way you do it is up to you
Litex
mkdir ~/LiteX
cd ~/Litex
wget https://raw.githubusercontent.com/enjoy-digital/litex/master/litex_setup.py
chomd +x litex_setup.py
./litex_setup --init --install --userOSS-CAD-SUITE
mkdir ~/Downloads/oss-cad-suite
cd ~/Downloads/oss-cad-suite
wget https://github.com/YosysHQ/oss-cad-suite-build/releases/download/2022-02-27/oss-cad-suite-linux-x64-20220227.tgz
sudo tar -xvf oss-cad-suite-linux-x64-20220123.tgz -C /usr/local/Add the following to ~/.profile
# set PATH so it includes oss-cad-suite
if [ -d "/usr/local/oss-cad-suite/bin" ] ; then
PATH="/usr/local/oss-cad-suite/bin:$PATH"
fiLogout and log back in.
Last edit: 27 Feb 2022 17:38 by ALittleOffTheRails.
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27 Feb 2022 17:41 #235933
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
The above post install everything required to build with litex.
As for root, as it is a valid discussion.
www.vultr.com/docs/why-use-sudo-instead-of-logging-in-as-root/
As for root, as it is a valid discussion.
www.vultr.com/docs/why-use-sudo-instead-of-logging-in-as-root/
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27 Feb 2022 19:51 #235944
by tuxcnc
Well, install 433 MB is overkill, but works.
The Litex not works for me. Has all files, but python can't find.
I tried run script and collect missing files to work directory.
I wonder, the script need only four directories from Litex installation : litedram liteeth liteiclink litex litex_boards
I tried on fresh Xubuntu 20.10.
You must first :<apt install python3-pip> installs all dependences including python3,
I don't know is my file working, because I haven't programmer.
Chinaman sent to me Altera not Lattice...
But you can test it.
github.com/tuxcnc/tuxcnc/blob/master/colorcnc-directory.tar.bz2
Replied by tuxcnc on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
Thanks.
[/code][/b][/code][/b][b]OSS-CAD-SUITE [code]mkdir ~/Downloads/oss-cad-suite cd ~/Downloads/oss-cad-suite wget https://github.com/YosysHQ/oss-cad-suite-build/releases/download/2022-02-27/oss-cad-suite-linux-x64-20220227.tgz sudo tar -xvf oss-cad-suite-linux-x64-20220123.tgz -C /usr/local/ [b]Add the following to ~/.profile [code]# set PATH so it includes oss-cad-suite if [ -d "/usr/local/oss-cad-suite/bin" ] ; then PATH="/usr/local/oss-cad-suite/bin:$PATH" fi Logout and log back in.
Well, install 433 MB is overkill, but works.
The Litex not works for me. Has all files, but python can't find.
I tried run script and collect missing files to work directory.
I wonder, the script need only four directories from Litex installation : litedram liteeth liteiclink litex litex_boards
I tried on fresh Xubuntu 20.10.
You must first :
wget https://github.com/YosysHQ/oss-cad-suite-build/releases/download/2022-02-27/oss-cad-suite-linux-x64-20220227.tgz
tar -xvf oss-cad-suite-linux-x64-20220227.tgz -C /usr/local/
apt update
apt install python3-pip
pip3 install migen
cd colorlight-directory
./colorlight_5a_75b.py
cd build/colorlight_5a_75b/gateware
PATH="/usr/local/oss-cad-suite/bin:$PATH"
sh build_colorlight_5a_75b.sh.I don't know is my file working, because I haven't programmer.
Chinaman sent to me Altera not Lattice...
But you can test it.
github.com/tuxcnc/tuxcnc/blob/master/colorcnc-directory.tar.bz2
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27 Feb 2022 21:00 #235947
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
If you follow my instructions, you don’t need to install migen as a seperate item.
What is the vendor and product id of your programmer ?
openfpgaloader may be able to use it, which is included in the oss-cad-suite. Yes the download is big but it is far easier than having to build all the parts to have a full suite of programs to build the bit file.
I have done it both ways, after finding out the Debian yosys packages were too old.
What is the vendor and product id of your programmer ?
openfpgaloader may be able to use it, which is included in the oss-cad-suite. Yes the download is big but it is far easier than having to build all the parts to have a full suite of programs to build the bit file.
I have done it both ways, after finding out the Debian yosys packages were too old.
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27 Feb 2022 21:06 #235948
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
Btw adding —build to the colourlight_5a_75b.py command will run the build script as well. If it fails it is usually because stepgen.v isn’t in build/gateware directory.
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27 Feb 2022 22:23 #235949
by tuxcnc
The programmer is still in bag, because I have dispute with seller.
I don't know vendor and id, but have photo :
Replied by tuxcnc on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
I ran colorlight_5a_75b.py before set path, probably this is explanation.If you follow my instructions, you don’t need to install migen as a seperate item.
What is the vendor and product id of your programmer ?
The programmer is still in bag, because I have dispute with seller.
I don't know vendor and id, but have photo :
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27 Feb 2022 23:02 #235954
by ALittleOffTheRails
Replied by ALittleOffTheRails on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
I have a feeling that might work, I use an Altera USB Blaster clone works fine with openfpgaloader, which is included with oss-cad-suite
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28 Feb 2022 22:11 #236039
by TOLP2
Replied by TOLP2 on topic ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board
At this moment I'm trying to make the idea of ColorCNC more flexible and expandable to more ColorLight cards. Therefore I started LiteX-CNC based on the contributions.
Trying to:
- configure the card by a JSON file (click-and-program);
- firmware split over multiple files for better readability and expansion with new functions;
- supports all ethernet FPGA cards which are supported by LiteX.
It is still work in progress (only GPIO out is finished at this moment) and not tested as my card is not yet in.
The repository can be found here: github.com/Peter-van-Tol/LiteX-CNC
Trying to:
- configure the card by a JSON file (click-and-program);
- firmware split over multiple files for better readability and expansion with new functions;
- supports all ethernet FPGA cards which are supported by LiteX.
It is still work in progress (only GPIO out is finished at this moment) and not tested as my card is not yet in.
The repository can be found here: github.com/Peter-van-Tol/LiteX-CNC
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