https://devzone.nordicsemi.com/f/nordic-q-a/13468/low-power-uart-mode-leaves-tx-asserted-while-cts-is-disabledI'm still on stack 8.0.0 so it might have been fixed since. I have noticed that if the other side de-asserts CTS the Nordic code will leave the TX asserted in a Break condition. In the past I have had some patched code that I have been trying to cleanen-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT