Is there an equivalent serialbreak() function with the new serialport class in MATLAB 2020b?

4 views (last 30 days)
MATLAB is recommending the switch to serialport as opposed to serial. With the old serial class, you could send a serialbreak() command. With the new serialport() class, I cannot locate a similar functionality. Is there a way to do this? Thanks.
------------------------------------------------------------------------------------
% Old way.
mbed = serial('COM9');
fopen(mbed);
serialbreak(mbed,1);
% New way.
mbed = serialport('COM9',9600);
% How do I send serial break with this new class?

Answers (2)

Pratyush Roy
Pratyush Roy on 27 Oct 2020
Hi Matthew,
As of MATLAB R2019b there is no builtin function to send a serial break to the 'serialport' object. Instead this will have to be done manually by sending 0 bits to the device for a certain amount of time, depending on the device. For example you can manually write 0s for the necessary amount of time:
write(s,zeros(1,amount),"uint8")
Hope this helps !!
  5 Comments
Walter Roberson
Walter Roberson on 24 May 2022
Mike Koko:
You will need to raise this as a technical support case to emphasize to Mathworks that it is needed.
The new interface is, in my opinion, not currently suitable for controlling a serial port.
There was a time when I wrote modem control software, and data transfer software over dialup. I was a systems administrator for an ISP with international nodes. The current serialport() interface would not be usable for that kind of purpose.

Sign in to comment.


Michael
Michael on 20 Nov 2023

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!