清空筛选条件
清空筛选条件

fopen of serial object

14 次查看（过去 30 天）
Leon Ellis
Leon Ellis 2021-10-8
评论： Walter Roberson 2021-10-8
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.

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2021-10-8
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.
  2 个评论
Leon Ellis
Leon Ellis 2021-10-8
Thank you very much, all examples I was able to find contained the fopen() function so i thought it was necessary.
Walter Roberson
Walter Roberson 2021-10-8
The examples would have been for serial() rather than serialport()

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Serial and USB Communication 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

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

Start Hunting!

Translated by