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Message

Re: [AVR-Chat] interrupts

2005-05-28 by David Kelly

On May 27, 2005, at 5:53 PM, John Samperi wrote:

> At 10:06 PM 27/05/2005, you wrote:
>
>> No data
>> is lost so long as one can read the previous assembled data before
>> the current incoming is complete.
>>
>
> Which is about 1ms at 9600 baud for an older chip with UART
> or about 2ms for a newer chip with double buffered USART.
> So you have a relative long time if you are receiving data
> at that speed.

In the Bad Old Days one had to catch the incoming character during  
the stop bit, or possibly as late as the start bit. This is the "why"  
of 1.0, 1.5 and 2.0 stop bits.

--
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.

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