serial vs. serialport

Question

David Brook 2020-5-28

3
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/536947-serial-vs-serialport

回答： Manas Meena 2021-2-9

Can anyone inform me how the new 'serialport' differs from the old 'serial' aside from syntax/terminology? Are there differences 'under the hood' as it were?

I'm trying to set up communication with an instrument and have found that while the old style 'serial' works fine, using a 'serialport' object doesn't work. I can connect to the instrument with either, but when I send a script for the instrument to execute, it somehow gets garbled with 'serialport' such that the instrument throws syntax errors when it tries to parse it.

The script is sent line by line as ascii characters, each line is terminated with a LF.

serial using fprintf and fscanf works fine.

serialport using writeline and readline does not, though the documentation says they are equivalent. The only other difference in the code is that with the oldstyle 'serial' I have to specifically open and close the port.

Dave