Serial communication with device error

2021 10 7
1 个回答
回答已采纳
更新时间：2021 10 8
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Good day, I'm trying to serially communicate with my FT232RL via COM1 port, however I keep getting an error. This is my code:
close all;
clc;
if ~isempty(instrfind)
fclose(instrfind);
delete(instrfind);
end
s= serialport("COM1",9600);
fopen(s);
And this is my error:
Error using serialport (line 116)
Unable to connect to the serialport device at port 'COM1'. Verify
that a device is connected to the port, the port is not in use,
and all serialport input arguments and parameter values are
supported by the device.
Error in Serial (line 9)
s= serialport("COM1",9600);
I have however been able to communicate to the device through MPLAB x, however for some reason MATLAB doesn't seem to pick it up. Help would be much appreciated!

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 采纳的回答

Leon Ellis
Leon Ellis 2021-10-8

0 个投票

Solved: I just had to delete or close to variable each time.

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