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How to realize RS485 serial communication by changing the state of GPIO port in linux-arm64 system #2814

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qwe104 opened this issue May 27, 2024 · 0 comments
Open

How to realize RS485 serial communication by changing the state of GPIO port in linux-arm64 system #2814

qwe104 opened this issue May 27, 2024 · 0 comments

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@qwe104
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qwe104 commented May 27, 2024

When transmitting, the GPIO value should be changed to 1, and to be sent successfully, the GPIO value should be changed to 0 immediately. Now, because the time point of transmitting successfully cannot be accurately found to change the GPIO value to 0 immediately, the modbus transmission success rate is low
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