On 02/18/2011 12:37 PM, Hans-Peter Diettrich wrote:
It's perfectly sufficient when the software is informed that the next
data packet can be supplied for transmission.
IMHO the decent way for user land software is to use a timeout that is
_a_lot_ greater than the time the hardware needs to toggle out the
serial bits plus to receive biggest possible the answer and resend the
block if no answer is detected up till then. This is not hard realtime.
The user land software can at any time be delayed for multiple seconds
by other proceedings on the PC.
Of course a decent protocol should use a running block counter so that
the receiver can detect a block it received a second time.
-Michael
--
_______________________________________________
Lazarus mailing list
[email protected]
http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
