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

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Harneel Singh Sagoo
Harneel Singh Sagoo 2014-11-19
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.

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回答（1 个）

Walter Roberson
Walter Roberson 2018-3-8
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.

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