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

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#6268

From: Jim
Date: Tue, 31 May 2005 16:21

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Thanks very much man. 


"Steve Aletto" <steve_alettoANTI@SPAMhotmail.com> wrote:
>> 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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