[HW] UART PINS

[sasabremec]

Hi to all

I am newbie with the Freescale i.Mx28x  family and I have a question about the UART pins and its functionality.

In our design we use uart pins in a combination with the external RS485 transceiver. My doubts are related to nRE and DE signals on RS485 transceivers. Usually we connect this pins to GPIOs but in this case using i.Mx287 we will connect them to RTS signal of the UART.

Does anyone has any experience that this will work using RTS signal or if i rephrase my question, can I use RTS signal of the uart as GPIO instead of RTS functionality?

Thanks for your answers, Sash

[YixingKong]

Sasa

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing

[YixingKong]

Sasa

We have not got your response yet and will close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

[YixingKong]

Sasa

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

[victorien]

Hi,

With imx28x, you can configure each pin in specific function or GPIO. Then, I think you can use RTS pin as GPIO for nRE/DE but you have to modify the linux driver