Hi,
I want to interface RS485 transceiver with AM335x processor. I want to use UART3 for this purpose. I have doubt regarding trasmit Direction Enable (DE) signal connection for RS485 transceiver to AM335x. From AM335x reference manual, UART_RTSn may not be connected to DE pin of RS485 transceiver since its functionality is different.
Kindly suggest where DE signal of RS485 transceiver is to be connected and how can I make DE signal active only during data transmission from TXD pin. Can I use any GPIO for this purpose? Will it be possible to control DE signal during data transmission from UART TXD pin through WinCE or linux Kernel since GPIO and UART modules are different?
Awaiting for your reply at an earliest.
Regards,
Mitesh