Equivalent of get device status in 'serial' to 'serialport'

5 次查看（过去 30 天）
Pin-Hao Cheng
Pin-Hao Cheng 2021-7-23
编辑： dpb 2021-7-27
I am updating some legacy codes, namely changing 'serial' to 'serialport,' as 'serial' will be removed soon.
Part of the code are as follow:
if get(device,'Status') ~= 'open'
...
end
According to the serial properties documentation, "Status of serial port device connection, returned as closed or open."
I have been going through the serialport documentation, theres nothing similar to 'status' property.
I wonder how can we handle this check?
  2 个评论
dpb
dpb 2021-7-23
Why TMW thinks they have to completely revamp stuff is beyond me...this machine doesn't even have a serial port, but in one of the examples there's the following note: "When you are finished working with the scope, clear the serialport object."
So, I'm guessing it's up to your application to keep track -- perhaps exist() then...make it hard don't they... :(

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Pin-Hao Cheng
Pin-Hao Cheng 2021-7-26
Credit to @dpb
This is the code I used:
if exist('device','var') ~= 1
...
end
More information about the exist syntax here and about the way to use it here.

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