https://devzone.nordicsemi.com/f/nordic-q-a/37792/device-not-advertising-after-intialiazing-the-uart-peripheralsHere i am attaching the my working code of the application.in my application i am using the two peripherals one is TWI and onther one is UART.i interface some sensors with TWI communication.it is working fine when ever i am configuring the uart in blockingen-USTelligent Community 13Mon, 27 Aug 2018 08:32:42 GMThttps://devzone.nordicsemi.com/thread/145841?ContentTypeID=1Mon, 27 Aug 2018 08:32:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c32cc820-357d-4d51-9c53-e350e13e564bPrathapReddy4023<p>i checked in debugging mode it is working fine here uart is working fine i can able to send the data to serial port also but the device is not getting advertise</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/145656?ContentTypeID=1Fri, 24 Aug 2018 10:58:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc41e7d8-131b-4920-a2f3-ee63a2b582b1J&#248;rgen Holmefjord<p>Hi,</p> <p>Have you tried <a href="https://devzone.nordicsemi.com/f/nordic-q-a/10729/my-device-is-freezing-and-restarting">debugging the application</a>, to see if there are any error codes reported insiden uart_init function?</p> <p>Can you post the definition of the function uart_init?</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>