Error refreshing com ports

15 ビュー (過去 30 日間)
Stiphu 2013 年 3 月 5 日
コメント済み: Ashirwad Gad 2019 年 11 月 15 日
My computer is connected to a LED light source over a virtual com port. The LED light source crashes from time to time. If this is the case, I have to restart it, which I can do over this com port (the crash is a power failure. The light source is not working properly anymore, but I still can communicate with it). The problem is, that after the restart, I'm not anymore able to connect to it. I'm trying to establish a new connection with
connection = serial('COM14','BaudRate',9600);
If I execute the fopen command, I get the following error message:
Error using serial/fopen (line 72)
Open failed: Port: COM14 is not available. Available ports: COM12,
COM14, COM15.
Use INSTRFIND to determine if other instrument objects are connected to
the requested device.
If I restart Matlab, I am able to reconnect. Do you know if there is any workaround?
  14 件のコメント
Ashirwad Gad
Ashirwad Gad 2019 年 11 月 15 日
alright thanks!


回答 (1 件)

Nhat Nguyen Thanh Minh
Nhat Nguyen Thanh Minh 2018 年 5 月 21 日
thanks for your help !

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