I am using the nRF Connect SDK v2.3.0 to build applications for nRF5340 audio boards . In particular I am interested in the application : ..\nrf\applications\nrf5340_audio .This builds and executes on the boards without issues using the buildprog.py script.
I am now trying to add extra functionality to this audio application inspired by the sample ..nrf\samples\bluetooth\peripheral_uart, to be able to send separate data over BLE to the board from an nRF Connect application.
The following line I add causes the the build to fail :
static const struct device *uart = DEVICE_DT_GET(DT_CHOSEN(nordic_nus_uart));
The issue is as as follows :
C:/ncs/v2.3.0/zephyr/include/zephyr/device.h:83:41: error: '__device_dts_ord_DT_CHOSEN_nordic_nus_uart_ORD' undeclared here (not in a function) 83 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id) | ^~~~~~~~~ C:/ncs/v2.3.0/zephyr/include/zephyr/toolchain/common.h:132:26: note: in definition of macro '_DO_CONCAT' 132 | #define _DO_CONCAT(x, y) x ## y | ^ C:/ncs/v2.3.0/zephyr/include/zephyr/device.h:83:33: note: in expansion of macro '_CONCAT' 83 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id) | ^~~~~~~ C:/ncs/v2.3.0/zephyr/include/zephyr/device.h:209:37: note: in expansion of macro 'DEVICE_NAME_GET' 209 | #define DEVICE_DT_NAME_GET(node_id) DEVICE_NAME_GET(Z_DEVICE_DT_DEV_ID(node_id)) | ^~~~~~~~~~~~~~~ C:/ncs/v2.3.0/zephyr/include/zephyr/device.h:226:34: note: in expansion of macro 'DEVICE_DT_NAME_GET' 226 | #define DEVICE_DT_GET(node_id) (&DEVICE_DT_NAME_GET(node_id)) | ^~~~~~~~~~~~~~~~~~ ../../../src/main.c:200:36: note: in expansion of macro 'DEVICE_DT_GET' 200 | static const struct device *uart = DEVICE_DT_GET(DT_CHOSEN(nordic_nus_uart)); | ^~~~~~~~~~~~~ ../../../src/main.c:200:29: warning: 'uart' defined but not used [-Wunused-variable] 200 | static const struct device *uart = DEVICE_DT_GET(DT_CHOSEN(nordic_nus_uart)); | ^~~~ ninja: build stopped: subcommand failed.
This line builds fine in the peripheral_uart sample but not when added to this audio application. I have all the required headers included etc. No doubt it is something trivial but I can't see it currently. What could be the issue here? Thank you in advance.