fopen of serial object

Good day, I'm trying to open my serialport to connect and write data to my arduino uno mcu. However I keep getting an error. My code is:

s = serialport("COM1",9600);

configureTerminator(s,"CR/LF");

pause(1);

ser = fopen(s, 'w');

pause(1);

writeline(s,1);

My error is:

Error using fopen

First input must be a file name or a file identifier.

Help would be much appreciated.

Answer 1

[Walter Roberson]

serialport() objects open themselves. There is no way to open or close them.

This does mean that if need to change the parameters of an object that you have to destroy it and recreate it.

I prefer the ability to explicitly close and open serial ports... but then I used to do dial-up work, where closing and opening objects was part of the normal flow of operations.

[Leon Ellis]

Thank you very much, all examples I was able to find contained the fopen() function so i thought it was necessary.

[Walter Roberson]

The examples would have been for serial() rather than serialport()