"F171 (C.T.LEE)" wrote:
> Hi,
>
> I currently doing communication with an hardware.
>
> The problem is that this hardware uses a strange protocol.
>
> 9600, 9 Data Bits, Even parity, 1 Stop bit.
Never heard of this before, and in fact it is technically impossible to
achieve it with asynchronous communication techniques.
The stopbit-startbit relationship, is not a matter of bits, but in fact a
matter of transistion so that the circuitry knows when to start. If you remove
the start bit, the circuitry have no clue when the first bit starts, and...
What I HAVE seen is that the parity is dropped in favour of 9 bit
communications. And in fact, this is what I think is going on in your case.
However, since you are so sure it is Even parity, I rest my case prior to
further information.
If you are talking synchronous communications, then that is a different story.
A story that I am not familiar enough with.
Niclas
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