https://devzone.nordicsemi.com/f/nordic-q-a/62452/nrf9160-uart-rx-stopedHi, When we do the UART stress testing with serial_lte_modem sample, the slm will crash by sending AT commands with interval 100ms. the debug log will show &quot;&lt;wrn&gt; at_host: RX_STOPPED&quot; and the RX_stop reason is UART_ERROR_FRAMING( 4), after this eventen-USTelligent Community 13Thu, 11 Jun 2020 13:08:31 GMThttps://devzone.nordicsemi.com/thread/254504?ContentTypeID=1Thu, 11 Jun 2020 13:08:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab61315d-c96e-4a40-974d-64cbc415f026H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>Are you trying to re-enable RXD in the callback where you get the error, or is this after the uart callback has finished?</p> <p>Due to ordering of execution in the uart driver:&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/blob/master/drivers/serial/uart_nrfx_uarte.c#L726-L727">https://github.com/nrfconnect/sdk-zephyr/blob/master/drivers/serial/uart_nrfx_uarte.c#L726-L727</a></p> <p>The _rx_disable() will be called after you have been notified in the application.</p> <p>&nbsp;</p> <p>PS: I&nbsp;have reported this internally, as the driver shall not make assumptions on how the application shall handle an error situation.</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>