https://devzone.nordicsemi.com/f/nordic-q-a/26222/uarte-framing-errors-at-low-temperaturesHello, i&#39;m using an nRF52832 as a Bluetooth to UART bridge, similar to the APP UART example. Another controller (Cortex M7) is connected to the UART. I&#39;m using UARTE with EasyDma and, because i have telegrams with variable length, TIMER1 to generateen-USTelligent Community 13Fri, 27 Oct 2017 12:49:34 GMThttps://devzone.nordicsemi.com/thread/103258?ContentTypeID=1Fri, 27 Oct 2017 12:49:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:923d5edf-b199-45bd-bc5e-ef126d590e13Sigurd<p>Are you able to test with Flow control ?</p> <p>You could also maybe do a test where 2 Cortex M7 is connected together with their UART, and see if the same errors occur then. And then do a test with 2 nRF52832 connected over UART(E).</p> <p>But at -35 °C you are getting very close to the operating limit. So if it works better with flow-control, maybe that could be a solution for the problem. It could also be an idea to do some error-handling when you get the framing-error event. I.e request the data again, until you send/receive it successfully.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/103259?ContentTypeID=1Wed, 25 Oct 2017 10:19:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d7e46ee6-8b00-4d89-b2cd-700771a4df90Sigurd<p>Hi,</p> <p>The nRF52832 should support <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/recommended_op_conditions.html?cp=2_1_0_5#concept_vng_xls_2q">temperatures down to -40 °C</a>.</p> <ul> <li> <p>Does the Cortex M7 have any temperature ratings ? What temperatures does it support?</p> </li> <li> <p>Does the 32 MHz crystal you use support -30 °C ?</p> </li> </ul><div style="clear:both;"></div>