https://devzone.nordicsemi.com/f/nordic-q-a/36095/nrf52840-uarte-rtsHi, Please help me on the nRF52840 UARTE RTS signal, through the doc: &quot;nrf52840_ops_v0.5.pdf&quot;, we can know if we stop the UARTE RX by trigger the &quot;NRF_UARTE_TASK_STOPRX&quot; , the RTS will be deactivated if HWFC enabled, my questions are: 1. there isen-USTelligent Community 13Thu, 05 Jul 2018 18:11:56 GMThttps://devzone.nordicsemi.com/thread/139156?ContentTypeID=1Thu, 05 Jul 2018 18:11:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95b4a8e4-06da-47b7-a91d-5fb55f948573HRB<p>Hi Kristin,</p> <p>thank you for your quick reply!</p> <p><span></span></p> <p><span>Thanks,</span></p> <p><span>HRB&nbsp;&nbsp;</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/139111?ContentTypeID=1Thu, 05 Jul 2018 12:22:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b6fb5af0-409a-4185-907f-60c85a627720FormerMember<p>1. To mu knowledge, it should work fine to stop UARTE RX upon ENDRX. If UARTE RX should stop for each ENDRX, you can use the predefined&nbsp;<a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52840.ps%2Fuarte.html&amp;cp=2_0_0_5_33_8_0&amp;anchor=register.SHORTS">short ENDRX_STOPRX</a> for this operation.</p> <p>2. When HWFC is activated, I would assume that RTS is activated as long as UARTE is enabled. I would think this can be verifed using a logic analyzer.</p> <p>3. Could you elaborate a little? For example, on which line do you measure this pulse?</p><div style="clear:both;"></div>