https://devzone.nordicsemi.com/f/nordic-q-a/10560/nrf52832-uarte-initialisation-errorThe Nordic UART code was built for the UARTE using the following definitions: #define UART0_CONFIG_USE_EASY_DMA true #define UART_EASY_DMA_SUPPORT 1 #define UART_LEGACY_SUPPORT 1 When the code is run the NRF_ERROR_BUSY error occurs in the &quot;nrf_drv_uart_rxen-USTelligent Community 13Wed, 02 Dec 2015 12:30:03 GMThttps://devzone.nordicsemi.com/thread/39290?ContentTypeID=1Wed, 02 Dec 2015 12:30:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc988cc7-c69c-4c61-86bf-e0040d017160Ole Bauck<p>Could you be more specific? I tested and it worked fine.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/39291?ContentTypeID=1Wed, 02 Dec 2015 10:53:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1d11ecf9-e46d-4ebf-9822-eb1710e34da0David Anthony<p>When serial characters are received the receive handler is not called with app_uart_fifo_mod.c. This works fine with the previous app_uart_fifo.c.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/39289?ContentTypeID=1Tue, 01 Dec 2015 11:58:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:83b39584-00a3-4026-84cf-a41956965f56Ole Bauck<p>This is a bug in the SDK, replace app_uart_fifo.c with this file: <a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/1682.app_5F00_uart_5F00_fifo_5F00_mod.c">app_uart_fifo_mod.c</a>. Report back here if there are any more issues.</p><div style="clear:both;"></div>