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How to use INSTRFIND to determind device

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tien nguyen
tien nguyen 2013-12-6
回答： Sreeram 2014-7-31
when i run my simulink, i got a erro
Open failed: Port: COM4 is not available. Available ports: COM1, COM2, COM 7.
COM7 is my arduino
then i type: >>instrfind
>>s = serial('COM7')
>>fopen(s)
the result:
Open failed: Port: COM7 is not available. Available ports: COM1, COM2.
my arduino connected with PC. help me, thanks.

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回答（1 个）

Sreeram
Sreeram 2014-7-31
Hi tien,
Could you please check if the drivers have been installed correctly and then restart MATLAB and try again ?
Thanks, Sreeram Mohan

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