Why are Serial COM ports closed in Matlab and open on the PC

Question

Harneel Singh Sagoo 2014-11-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/163376-why-are-serial-com-ports-closed-in-matlab-and-open-on-the-pc

回答： Walter Roberson 2018-3-8

This is the following Statement i get from Matlab after pressing "Verbinden"

>> versuchsstand

   Serial Port Object : Serial-COM6
   Communication Settings 
      Port:               COM6
      BaudRate:           57600
      Terminator:         'LF'
   Communication State 
      Status:             closed
      RecordStatus:       off
   Read/Write State  
      TransferStatus:     idle
      BytesAvailable:     0
      ValuesReceived:     0
      ValuesSent:         0
   Serial Port Object : Serial-COM7
   Communication Settings 
      Port:               COM7
      BaudRate:           115200
      Terminator:         'LF'
   Communication State 
      Status:             closed
      RecordStatus:       off
   Read/Write State  
      TransferStatus:     idle
      BytesAvailable:     0
      ValuesReceived:     0
      ValuesSent:         8

How can i Change the Status from Closed to Open, so that i can communicate with the connected devices.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Abhishek Dobhal 2018-3-8

Did anyone find out how to solve this issue?

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2018-3-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/163376-why-are-serial-com-ports-closed-in-matlab-and-open-on-the-pc#answer_309003

You need to serial() to configure the settings for the com port, and then you need to fopen() the resulting object, after which you can do I/O with it.