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Writing matrix in text file to serial port

Asked by Anjani Chaudhary on 14 Sep 2019 at 1:39
Latest activity Answered by Walter Roberson
on 14 Sep 2019 at 4:25
I have matlab 2016b version. I am trying to find my com port using seriallist or getAvailableComPort function. But its saying function /variable not defined. M not bale to use many other functions like readmatrix, serialport etc What could be the reason? Help appreciated.
Thanks.
A

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Answer by Walter Roberson
on 14 Sep 2019 at 4:25

The reason is that those routines do not exist until R2018b and r2019a.
Furthermore, readmatrix and writematrix are for dealing with file io not for serial ports.
You should be using instrfind to look for serial ports. Use serial() to construct a serial port object. fopen() it after configuration. fprintf() to send numeric values as text.
Be careful: fprintf outputs down the columns. If you ask to fprintf
1 2 3
4 5 6
Then it will output in the order 1 4 2 5 3 6. The trick is to transpose() 2d matrices

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