Yusuf,

2009/6/24 Yusuf =D6zkay <yusufozkay@gmail.com>:
> I tried at real simulation same thing happens.One byte is sent from A, th=
at
> is received by B. B sends one byte, and that is received by A. A sends one
> byte but this byte is not received by B. No more communication happens.
>

Are you sure that the RX/TX switch is operating correctly? If the
timing is too long between the end of the transmit packet and the
transmitter switching off then you _could_ get the the effect above,
It will depend on the amount of processing / packet verification going
on as well. For example, in the above: if the second response from 'A'
is just an acknowlegement, it could be sending it before B is ready to
receive. It didn't happen the first time because 'A' had to process
the data, calculate CRCs etc.

Even if you have the RX permanently enabled, it's the TX switching on
and off that is going to create the issue.

RP

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