I need to communicate to a serial device that uses 9-bit serial. I have found the way to set the UART for 9 bit serial but I have not found how to read and write the 9th bit. I am thinking it may be the UCSR0B Bit #0 and 1 but that that is pure guess. Is there any documentation on how to read and wr…

9-bit serial implementation

CrossRoads May 21, 2012, 9:01pm 2

Have you tried the datasheet for your device?
Maybe all it takes is a simple ass'y command or two.

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