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OSDK serial port communication failed, error ERRORLOG/1 @ sendData, L423: Port closed. ERRORLOG/1 @ sendData, L427: Open Protocol cmd send failed, send_len: -1 packet_len: 22

kyle.cai

August 26, 2021 07:13
Updated

Keywords: OSDK serial/UART communication, ERRORLOG/1 @ sendData, L423: Port closed

The error message prompts PORT closed.

It is recommended to check the serial port module baud rate settings and

whether the serial port hardware connection is disconnected.

Note: This article is from Chinese and is translated by machine. If there is any suggestions, please point it out and we will correct it in time

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