Re: How to set and reset StopBit ? ( DCB )

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#6265

From: Steve Aletto
Date: Tue, 31 May 2005 15:54

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> Using DCB, i have the 'StopBits' parameter to set the number 
> of
> stop bits when i transmit data. I set it to 0 to use one stop
> bit, but how do i determine if it will be '0' or '1'? do i 
> have
> any control on this bit value?

I don't think you have. IIRC, RS232 defines the stop bit must be 
'1'. Why you should need control on that?


> Also, i did not understand what's the meaning of "1.5 stop
> bits", what's the meaning of half bit? :-o

1, 1.5 or 2 is the _duration_ of the stop bit. So 1.5 means one 
time and a half of a normal bit. For example @9600 1 bit is 
around 0.104ms long. If you set 1.5, the stop bit duration will 
be 0.156ms.

HTH,

Steve.

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Subject: Re: How to set and reset StopBit ?  ( DCB )  
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