They want "Even Parity Check (exclusive -OR)" is there anywhere I can find information on explaining to a non-maths person what this means, in very simple terms?
It depend on how your data in transmit.
Some will use send serial 8 bits as
7 databits + parity bit + stop bit.
In this case you just have to test the 8th bit
Some other will send serial 9 bits as
8 databit + parity bit + stop bit.
In this case you just have to test the 9th bit
tell us more about your hardware and what you plan to do.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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