Hi, all

Although this subject has being around for a lot of time, I was not able
to find how can I switch the RS485 driver (AD485) from transmiting to
receiving just after the last bit transfered using the embedded USART of
the PIC17C756A.  AFAIK, we have two buffers, one acessible to the user
(programmer) and the other not, the first is the logical buffer that
will transfer its contents to the second buffer, that will be used to
shift out the bits to the RS485 line through the inverter.  As far as I
know, the USART sets an interrupt after the logical buffer gets "empty",
so I don't know exactly when the transmission ends so I could enable to
recieve information just after the last bit is sent.

Any hint, link, flame ;-)  ?

Thanks
Francisco

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