https://devzone.nordicsemi.com/f/nordic-q-a/34688/usage-of-secondary-buffer-in-uartRecently i am developing an application based on UART on nRF51822 platfrom, where an application receives the data through UART. During development, i went through nRF UART driver module. Inside the nRF UART driver module, i didnt understand the use ofen-USTelligent Community 13Fri, 25 May 2018 08:14:18 GMThttps://devzone.nordicsemi.com/thread/133361?ContentTypeID=1Fri, 25 May 2018 08:14:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d77e03ad-5b00-40fc-ba61-e72f8892402fJ&#248;rgen Holmefjord<p>Hi,</p> <p>Double buffering allows you to read/process one buffer, while one buffer is being filled by the peripheral. The second buffer can be set immediately after the transfer to the first buffer is started. This is described in the API documentation of function&nbsp;<a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.3.0/group__nrf__drv__uart.html#ga6c9016e64da332edc16ebb274b6644b7">nrf_drv_uart_rx</a>().</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>