Lpc2000

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 09:11 PM 2/25/05 +0000, peterburdine wrote:
> >I just wish they gave you a way to know how many bytes are in the FIFO
> >(at least the tx fifo).  In my drivers I just keep track of how many I
> >put in, and they when I get THRE I reset the count to zero.
> 
> Why?  If you are doing a polled transmission I could see the use for
a FIFO 
> full flag but for interrupt driven you can stuff the FIFO faster
than you 
> can remove a byte from it at most baud rates.  Even for polled
transmission 
> I don't see much loss of efficiency (if there were you could easily
switch 
> to interrupt driven).  I don't see any use for a FIFO count and I've
not 
> seen a UART with a FIFO that has one.
> 
> Robert
> 
> 
> 
> " 'Freedom' has no meaning of itself.  There are always restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try to
> chew a radio signal. "
> 
>                          Kelvin Throop, III

Well thats what I meant to get at, there is no way to tell if it is full.