RTS pin not changing when using the BBIO UART library

[radolf]

I have a Beaglebone Black running Ubuntu and have installed the IO python library for it.
I have enabled the UART1 overlay and can successfully send data over RX and TX, but the RTS pin remain high.
I also have tried using the GPIO library to control P9_19 (the RTs pin), and it still remains high even though I can control other pins.
Is there any step that I am forgetting in configuring the UART1 device tree overlay on the Beaglebone or is the library just not capable of controlling the RTS pin yet?

[jwcooper]

Setting the RTS pin isn't supported in the library (by default, that I know of) at this time. You could update the overlay, compile, and install it with the RTS configured though.

This might be a good start:
http://stackoverflow.com/questions/2266 ... lack-uart1

The Adafruit_BBIO library uses the overlay found here:
https://github.com/adafruit/adafruit-be ... 1-00A0.dts

You can compile/install with this simple script:
https://github.com/adafruit/adafruit-be ... builder.py

Sorry this isn't more of a help!

[radolf]

In the overlay, there are two fragments. Which do I put the rts-gpio = <&gpio0 13 0>?
Also, do I need to include the RTS pin in the exclusive-use section?

[jwcooper]

My best guess it right here (but not really sure without playing around with it...):
https://github.com/adafruit/adafruit-be ... A0.dts#L34

Also, for much more comprehensive answers (TI reads the following board), this might be more help:
https://groups.google.com/forum/#!categ ... bone-black