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); fopen(connection)
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?