Thank you for your response John.
 So i only need to to translate  when sending data to the BBB or for both
TX and RX ?


2014-07-03 5:18 GMT+02:00 John Syn <[email protected]>:

>
> From: Cristian Mitu <[email protected]>
> Reply-To: "[email protected]" <[email protected]>
> Date: Wednesday, July 2, 2014 at 1:49 PM
> To: "[email protected]" <[email protected]>
> Subject: [beagleboard] UART RS485 transciever setup
>
> Hello guys,
>
>
> I am designing a board ( an adapter board for the BeagleBine black) that
> is un upgrade for a current system. Beacuse of this i specifically have to
> link a 5V TTL RS485 transceiver to one of the UARTs available. I am not
> sure what logic family the BeagleBone uses(though i'm guessing that it is
> CMOS)  and because of this i want to know if this old transceiver can be
> wired directly to the BeagleBone or is it unavoidable that i have to use
> logic level translators for the signals. I apologize for the newbie
> question and i thank you in advance for your response.
>
> You will need to translate the 5V TTL signals to 3.3V before connecting to
> the BBB.
>
> Regards,
> John
>
>
>
> PS
>
> If you could direct me to some good drivers for RS485 communication i
> would be overwhelmed with joy and eternally grateful :)
>
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