William Chops Westfield wrote:
> On Oct 15, 2006, at 3:26 PM, Bob Axtell wrote:
>
>   
>> You don't need a special character sent if you keep measuring
>> until you find the SMALLEST width, that will be a single bit width.
>>     
>
> Not all characters end up having either a zero or one that is only
> a single bit width wide.  IIRC, a string of capital "U" characters
> is nearly a perfect square wave (with f = 1/5 bitrate?) (this caused
> some interesting problems with some of the early high-speed modems;
> they'd lose sync...)
>
>   
>>  It would therefore always respond with the correct baud rate.
>>     
The 'U' character would be fine for my scheme. I am not needing a 
character with ONE bit
width, I can measure the single bit width anytime, and a string of 'U's 
are perfect.

>
> The prompt I was talking about appeared before there was ANY
> user input...
>
>   
No, there HAD to be traffic before the prompt appeared. Otherwise, how 
would it know
anyone was even there?

--Bob

> BillW
>
>   

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist