[ntp:questions] Cheap ($29.90) GPS receiver
nomail at example.com
Tue Apr 20 19:05:57 UTC 2010
Hal Murray <hal-usenet at ip-64-139-1-69.sjc.megapath.net> wrote:
>>The serial chip does not do that. It will send the interrupt at the
>>time it has assembled a full character.
> Some of the serial chips have large FIFOs and wait until the FIFO
> has several characters and/or there is no activity for a while.
> The idea is to save CPU cycles by batching interrupts.
Yes this makes it even worse.
But I was reacting on the posting where it was suggested that this
FIFO can be turned off and then an interrupt could be sent at the
beginning of the startbit.
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