在Octave中，如何用新的“串行端口”打开串行端口。命令语法

发布于 2025-01-26 13:33:10 字数 598 浏览 1 评论 0原文

八度串行通信的最新文档解释了使用“序列上”命令打开端口而不是弃用的“序列”命令。

https://octave.sourceforge.io/instrument-controrment-control/control/overview.html

没有解释如何关闭串行端口。我用它成功打开端口并进行一些写作

s1=serialport('com5','Baudrate',57600)
num=write(s1,'help')

，但我不知道如何关闭端口。我使用了这个：

fclose(s1)

得到了这个错误响应，

error: file id must be a file object, std::string, or integer value

有人知道如何关闭串行端口吗？

原文

The latest documentation for serial communication in Octave explains to use the "serialport" command to open the port instead of the deprecated "serial" command.

https://octave.sourceforge.io/instrument-control/overview.html

There is no explanation of how to close the serial port. I used this to successfully open the port and do some writing

s1=serialport('com5','Baudrate',57600)
num=write(s1,'help')

But I can't figure out how to close the port. I used this:

fclose(s1)

And got this error response

error: file id must be a file object, std::string, or integer value

Does anyone know how to close the serial port?

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笛声青案梦长安 2025-02-02 13:33:10

八度函数试图在可能的情况下模仿Matlan函数，这也没有密切的函数。

要关闭串行端口，将变量设置为其他东西，如果在其他地方不使用它，它将关闭端口。

# create a serialport references by the s1 variable
s1=serialport('com5','Baudrate',57600)
num=write(s1,'help')

# set s1 to something else
s1 = [];
# s1 was only variable referencing the serial port
# so the serial port is now freed/closed

您也可以清除变量：

clear s1

The octave functions attempt to mimic where possible the Matlan functions, which also does not have a close function.

To close the serial port, set the variable to something else, and if it is not used elsewhere, it will close the port.

# create a serialport references by the s1 variable
s1=serialport('com5','Baudrate',57600)
num=write(s1,'help')

# set s1 to something else
s1 = [];
# s1 was only variable referencing the serial port
# so the serial port is now freed/closed

You could also clear the variable: