Serial communication is the most common low-level protocol for communicating between two or more devices. Normally, one device is a computer, while the other device can be a modem, a printer, Arduino ® hardware, another computer, or a scientific instrument such as an oscilloscope or a function generator. For many serial port applications, you can communicate with your instrument without. Create a serial port object array, consisting of s1 and s2, using the usual MATLAB syntax. To create the row array x, enter.
Active2 years, 5 months ago
I'm trying to establsih serial communication with an Arduino through USB (running Arch Linux). I can do it in a straightforward way trough a C++ program and using
boost::asio , but recently I installed Matlab and been encoutering some issues. I manage to create the serial object with s0=serial('/dev/ttyACM0') but when I call fopen(s0) I get the following error:
joaocandrejoaocandre
3 Answers
Here is what I did to get serial port communication work in Matlab R2014a on Arch Linux 64 bit:
1a) follow the steps described here: http://www.matlabarduino.org/serial-communication.html:
sudo chmod 777 /dev/ttyACM0 Alternatively, add your user to the group uucp: > sudo gpasswd --add username uucp
sudo nano $MATLABROOT/bin/$ARCH/java.opts --> add: -Dgnu.io.rxtx.SerialPorts=/dev/ttyS0:/dev/ttyUSB0:/dev/ttyACM0
Matlab Serial Port Read
1b) check that the connection works in gtkterm (select port ttyACM0)
Matlab.com Port
2) additionally (critical only for Matlab):
sudo chmod 777 /run/lock /run/lock was symlinked from /var/lock on my distro, so you might have to do this with the latter dir (was 755); alternatively, you can manage access rights to /run/lock/ by ACL.
How I got to this solution:
sudo strace -p 4668 -f -s100 2>&1 | grep -C3 --color -i -e /dev -e serialports -e uucp -p: process ID second column from > sudo ps -aux | grep -i matlab Then, in Matlab type >> sps=instrhwinfo('serial') (which in my case always returned a structure of empty cell-arrays) and monitor the output of strace.
Hope that helps!cheers :)
user5161769user5161769
By default, only root can use the serial port.
And you can add your id to the serial group 'dialout', so you can use the serial port.
MalvinMalvin
Just make soft link from /dev/ttyACM0 to /dev/ttyS[0-255]. Minecraft 1.9.4 free download.
Below Matlab R2017a may face this issue.
Detailed Description can find here:
Hope this can be helped.
SLKunSLKun
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