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Original question:

AM335x UART RTS as RS485 Direction Enable signal

Linux/PROCESSOR-SDK-AM335X: AM335x UART5 RTS as RS485 Write control signal

ys hung
Prodigy 30 points
Part Number: PROCESSOR-SDK-AM335X

Tool/software: Linux

use ti-sdk-am335x-evm-08.00.00.00-Linux-x86 sdk, uart5 use (H18)SPI1_CS0/UART5_TXD/GPIO0_29 for TXD, (V4)UART5_RXD/UART5_CTSN/GPIO0_10 for RXD, (T5)UART5_RTSN/GPIO0_11 for RTS

currently the RTS (GPIO0_11 ) can't to be control,

i follow

AM335x UART RTS as RS485 Direction Enable signal - Processors forum - Processors - TI E2E support fo...

e2e.ti.com
I want to interface RS485 transceiver with AM335x processor. I am using UART5 for this purpose. I have doubt regarding transmit Direction Enable (DE) signal connection
the to modify, but the software make error, the error message is struct serial_rs485 has no member named ‘gpio_pin’

  • 0
    TI__Guru**** 155121 points
    Hi,

    The SDK v8.0 was released 4+ years ago and is longer supported. Please migrate to the latest Processor SDK release.
    Using UART for RS485 is also out of our support scope.