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error occurred while executing external mode mex-file 'ext_comm'

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I have tried to change baud rate into 921600 and 230400 but I still meet this error. Can someone please help me. I use matlab 2019a.
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Venkat Siddarth Reddy
Venkat Siddarth Reddy on 17 Apr 2024 at 17:31
Hi Vikai,
Just from the error message, I am speculating that the issue is with the target board. Can you confirm that the mentioned possible reasons have been ruled-out?

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