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STM32F4 RS485 and RTS pin

Question asked by Lukasz Przenioslo on Dec 8, 2015
Latest reply on Dec 9, 2015 by Lukasz Przenioslo
Hello there,
I need to implement rs485 communication using STM32F407. I am using MAX487 chip which has a direction pin. I have searched the forums for a hardware solution to this, and found a topic which says that it is not possible:
LINK

But on the other hand, I was wondering isnt it possible to use USART with RTS pin enabled and use that RTS pin as direction control? In that way i would not need to wait for interrupts to manually toggle DE pin.

RTS_RS485.png

From the description of RTS functionality it seems like it works the way it should for RS485. What do you think?

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