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Adding 9-bit support to the hardware serial UART #379

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Adding 9-bit support to the hardware serial UART #379

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Commits on Oct 5, 2024

  1. Update Serial.h for 9-bit support 

    Added to write function declarations for functions being added to the serial.cpp to support the 9-bit functionality of the processor. 

The "bool wake" allows turning on the 9-bit, also known as the wake bit.
    @vashadow
    vashadow authored Oct 5, 2024
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  2. Update Serial.cpp to support 9-bit functionality on UART 

    Add two functions and the supporting 9N1 case logic to allow for turning on 9-bit support and sending commands. The second argument, bool, allows for turning on or off the 9th bit, also known as the wake bit. 

Serial1.begin(19200, SERIAL_9N1);
Serial1.write_9bit(0x81, true);
Serial1.write_9bit(&temp[1], false, len - 1);
    @vashadow
    vashadow authored Oct 5, 2024
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