I want to build only the audio playback part of the nRF5340 AUDIO DK in VSCODE.

[wnsdud1643]

Hello. 

I am using vscode. 

I added sdcard to broadcast_sink in the existing samples in applications/nrf5340_audio and checked the list with the serial monitor and wanted to check the playback, but since there is no device with Bluetooth function, pairing is not possible, so I created a new main.c and excluded the Bluetooth function and only added the part that reads the list in sdcard and plays the audio file in sdcard to test it.

Added CONFIG_SD_CARD_PLAYBACK=y, CONFIG_CONSOLE=y, CONFIG_SERIAL=y, CONFIG_SHELL=y to prj.conf. The prj.conf file is located in the applications/nRF5340_audio path.

vscode: V1.102.3 
sdk: V3.0.2 
Toolchain: V3.0.2

The image shows the build settings in vscode.

 *---

The full build is attached as build.txt below.

    

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        0576.build.txt
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 *  작업 실행 중: nRF Connect: Generate config nrf5340_audio_dk/nrf5340/cpuapp for c:\ncs\v3.0.2\nrf\applications\nrf5340_audio 

Building nrf5340_audio
C:\WINDOWS\system32\cmd.exe /d /s /c "west build --build-dir c:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build c:/ncs/v3.0.2/nrf/applications/nrf5340_audio --pristine --board nrf5340_audio_dk/nrf5340/cpuapp --sysbuild -- -DCONF_FILE=prj.conf -DBOARD_ROOT=c:/ncs/v3.0.2/nrf/applications/nrf5340_audio"

-- west build: generating a build system
Loading Zephyr module(s) (Zephyr base): sysbuild_default
-- Found Python3: C:/ncs/toolchains/0b393f9e1b/opt/bin/python.exe (found suitable version "3.12.4", minimum required is "3.10") found components: Interpreter 
-- Cache files will be written to: C:/ncs/v3.0.2/zephyr/.cache
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: nrf5340_audio_dk, qualifiers: nrf5340/cpuapp
Parsing c:/ncs/v3.0.2/nrf/applications/nrf5340_audio/Kconfig.sysbuild
Loaded configuration 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/_sysbuild/empty.conf'
Merged configuration 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/_sysbuild/empty.conf'
Configuration saved to 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/zephyr/.config'
Kconfig header saved to 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/_sysbuild/autoconf.h'
-- 
   ***********************************
   * Running CMake for nrf5340_audio *
   ***********************************

Loading Zephyr default modules (Zephyr base).
-- Application: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio
-- CMake version: 3.21.0
-- Found Python3: C:/ncs/toolchains/0b393f9e1b/opt/bin/python.exe (found suitable version "3.12.4", minimum required is "3.10") found components: Interpreter 
-- Cache files will be written to: C:/ncs/v3.0.2/zephyr/.cache
-- Zephyr version: 4.0.99 (C:/ncs/v3.0.2/zephyr)
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: nrf5340_audio_dk, qualifiers: nrf5340/cpuapp
-- Found host-tools: zephyr 0.17.0 (C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.17.0 (C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk)
-- Found Dtc: C:/ncs/toolchains/0b393f9e1b/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6") 
-- Found BOARD.dts: C:/ncs/v3.0.2/zephyr/boards/nordic/nrf5340_audio_dk/nrf5340_audio_dk_nrf5340_cpuapp.dts
-- Generated zephyr.dts: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/zephyr.dts
-- Generated pickled edt: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/edt.pickle
-- Generated zephyr.dts: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/include/generated/zephyr/devicetree_generated.h
-- Including generated dts.cmake file: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/dts.cmake

warning: Experimental symbol NRF5340_AUDIO is enabled.


warning: Experimental symbol SD_CARD_PLAYBACK is enabled.

Parsing C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/Kconfig
Loaded configuration 'C:/ncs/v3.0.2/zephyr/boards/nordic/nrf5340_audio_dk/nrf5340_audio_dk_nrf5340_cpuapp_defconfig'
Merged configuration 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/prj.conf'
Merged configuration 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/.config.sysbuild'
Configuration saved to 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/.config'
Kconfig header saved to 'C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: c:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi/bin/ld.bfd.exe (found version "2.38") 
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc.exe
=========== Generating psa_crypto_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Backup: CONFIG_MBEDTLS_THREADING: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Restore: CONFIG_MBEDTLS_THREADING: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_config ===============
=========== Generating psa_crypto_library_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Backup: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Backup: CONFIG_MBEDTLS_THREADING: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Restore: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Restore: CONFIG_MBEDTLS_THREADING: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_library_config ===============
-- libmetal version: 1.7.0 (C:/ncs/v3.0.2/nrf/applications/nrf5340_audio)
-- Build type:  
-- Host:    Windows/AMD64
-- Target:  Generic/arm
-- Machine: arm
-- Vendor: none
-- Looking for include file stdatomic.h
-- Looking for include file stdatomic.h - found
-- open-amp version: 1.7.0 (C:/ncs/v3.0.2/modules/lib/open-amp/open-amp)
-- Host:    Windows/AMD64
-- Target:  Generic/arm
-- Machine: arm
-- C_FLAGS :  -Wall -Wextra
-- Looking for include file fcntl.h
-- Looking for include file fcntl.h - found
CMake Warning at C:/ncs/v3.0.2/zephyr/CMakeLists.txt:2180 (message):
  __ASSERT() statements are globally ENABLED


CMake Error at CMakeLists.txt:17 (message):
  No configuration file specified, set -- -DEXTRA_CONF_FILE=<configuration
  file>


-- Configuring incomplete, errors occurred!
See also "C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/CMakeFiles/CMakeOutput.log".
See also "C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/nrf5340_audio/CMakeFiles/CMakeError.log".
CMake Error at cmake/modules/sysbuild_extensions.cmake:514 (message):
  CMake configure failed for Zephyr project: nrf5340_audio

  Location: C:/ncs/v3.0.2/nrf/applications/nrf5340_audio
Call Stack (most recent call first):
  cmake/modules/sysbuild_images.cmake:43 (ExternalZephyrProject_Cmake)
  cmake/modules/sysbuild_default.cmake:21 (include)
  C:/ncs/v3.0.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:75 (include)
  C:/ncs/v3.0.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  C:/ncs/v3.0.2/zephyr/share/sysbuild-package/cmake/SysbuildConfig.cmake:8 (include)
  template/CMakeLists.txt:10 (find_package)


-- Configuring incomplete, errors occurred!
See also "C:/ncs/v3.0.2/nrf/applications/nrf5340_audio/build/CMakeFiles/CMakeOutput.log".
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\0b393f9e1b\opt\bin\cmake.EXE' -DWEST_PYTHON=C:/ncs/toolchains/0b393f9e1b/opt/bin/python.exe '-Bc:\ncs\v3.0.2\nrf\applications\nrf5340_audio\build' -GNinja -DBOARD=nrf5340_audio_dk/nrf5340/cpuapp -DCONF_FILE=prj.conf -DBOARD_ROOT=c:/ncs/v3.0.2/nrf/applications/nrf5340_audio '-SC:\ncs\v3.0.2\zephyr\share\sysbuild' '-DAPP_DIR:PATH=c:\ncs\v3.0.2\nrf\applications\nrf5340_audio'

 *  터미널 프로세스가 종료되었습니다(종료 코드: 1). 
 *  터미널이 작업에서 다시 사용됩니다. 닫으려면 아무 키나 누르세요. 




--*

I saved main.c in the src folder. I'll attach the main.c I'm using.

    

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        4466.main.c
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/*
 * Copyright (c) 2023 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */

#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
#include <zephyr/zbus/zbus.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/console/console.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "nrf5340_audio_dk.h"
#include "led.h"
#include "button_assignments.h"
#include "macros_common.h"
#include "audio_system.h"
#include "bt_mgmt.h"
#include "fw_info_app.h"
#include "sd_card.h"
#include "sd_card_playback.h"
#include "button_handler.h"
#include "zbus_common.h"

LOG_MODULE_REGISTER(main, CONFIG_MAIN_LOG_LEVEL);

/* ZBus subscribers */
ZBUS_SUBSCRIBER_DEFINE(button_evt_sub, CONFIG_BUTTON_MSG_SUB_QUEUE_SIZE);

/* ZBus channels */
ZBUS_CHAN_DECLARE(button_chan);

/* Thread definitions */
static struct k_thread button_msg_sub_thread_data;
static struct k_thread console_thread_data;
static k_tid_t button_msg_sub_thread_id;
static k_tid_t console_thread_id;

K_THREAD_STACK_DEFINE(button_msg_sub_thread_stack, CONFIG_BUTTON_MSG_SUB_STACK_SIZE);
K_THREAD_STACK_DEFINE(console_thread_stack, 1024);

/* SD Card file list buffer */
#define MAX_FILES 50
#define MAX_FILENAME_LENGTH 64
static char file_list[MAX_FILES][MAX_FILENAME_LENGTH];
static int file_count = 0;

/* Console command buffer */
#define CONSOLE_CMD_MAX_LEN 128
static char console_cmd_buffer[CONSOLE_CMD_MAX_LEN];

/* Function prototypes */
static void button_msg_sub_thread(void);
static void console_thread(void);
static int zbus_subscribers_create(void);
static int zbus_link_producers_observers(void);
static void list_sd_card_files(void);
static void play_audio_file(const char *filename);
static void show_help(void);
static void process_console_command(char *cmd);

/**
 * @brief Button message subscriber thread
 */
static void button_msg_sub_thread(void)
{
	const struct zbus_channel *chan;

	while (1) {
		if (zbus_sub_wait(&button_evt_sub, &chan, K_FOREVER)) {
			LOG_ERR("Failed to wait for zbus message");
			continue;
		}

		const struct button_msg *msg = zbus_chan_const_msg(chan);

		if (msg == NULL) {
			LOG_ERR("Failed to get message from channel");
			continue;
		}

		LOG_DBG("Button event: pin=%d, action=%d", msg->button_pin, msg->button_action);

		switch (msg->button_pin) {
		case BUTTON_VOLUME_DOWN:
			if (msg->button_action == BUTTON_PRESS) {
				LOG_INF("Volume Down button pressed");
			}
			break;

		case BUTTON_VOLUME_UP:
			if (msg->button_action == BUTTON_PRESS) {
				LOG_INF("Volume Up button pressed");
			}
			break;

		case BUTTON_PLAY_PAUSE:
			if (msg->button_action == BUTTON_PRESS) {
				LOG_INF("Play/Pause button pressed");
			}
			break;

		case BUTTON_4:
			if (msg->button_action == BUTTON_PRESS) {
				LOG_INF("Button 4 pressed - List SD card files");
				list_sd_card_files();
			}
			break;

		case BUTTON_5:
			if (msg->button_action == BUTTON_PRESS) {
				LOG_INF("Button 5 pressed");
			}
			break;

		default:
			LOG_DBG("Unhandled button: %d", msg->button_pin);
			break;
		}
	}
}

/**
 * @brief Console thread for handling serial commands
 */
static void console_thread(void)
{
	console_getline_init();

	while (1) {
		printf("\nSD Card Audio Player> ");
		fflush(stdout);

		if (console_getline(console_cmd_buffer, CONSOLE_CMD_MAX_LEN) > 0) {
			process_console_command(console_cmd_buffer);
		}

		k_sleep(K_MSEC(100));
	}
}

/**
 * @brief Process console commands
 */
static void process_console_command(char *cmd)
{
	char *token;
	char *saveptr;

	// Remove newline
	cmd[strcspn(cmd, "\n")] = 0;

	token = strtok_r(cmd, " ", &saveptr);
	if (token == NULL) {
		return;
	}

	if (strcmp(token, "help") == 0 || strcmp(token, "h") == 0) {
		show_help();
	}
	else if (strcmp(token, "list") == 0 || strcmp(token, "ls") == 0) {
		list_sd_card_files();
	}
	else if (strcmp(token, "playback") == 0 || strcmp(token, "p") == 0) {
		token = strtok_r(NULL, " ", &saveptr);
		if (token == NULL) {
			printf("Usage: playback <filename>\n");
			printf("Example: playback audio.wav\n");
		} else {
			play_audio_file(token);
		}
	}
	else if (strcmp(token, "status") == 0 || strcmp(token, "s") == 0) {
		if (sd_card_playback_is_active()) {
			printf("Playback is active\n");
		} else {
			printf("No playback active\n");
		}
	}
	else if (strcmp(token, "clear") == 0 || strcmp(token, "cls") == 0) {
		printf("\033[2J\033[H"); // Clear screen
	}
	else {
		printf("Unknown command: %s\n", token);
		printf("Type 'help' for available commands\n");
	}
}

/**
 * @brief Show help information
 */
static void show_help(void)
{
	printf("\n=== SD Card Audio Player Commands ===\n");
	printf("help, h                    - Show this help\n");
	printf("list, ls                   - List all audio files on SD card\n");
	printf("playback <filename>, p     - Play audio file\n");
	printf("status, s                  - Show current playback status\n");
	printf("clear, cls                 - Clear screen\n");
	printf("=====================================\n\n");
}

/**
 * @brief List all audio files on SD card
 */
static void list_sd_card_files(void)
{
	printf("Scanning SD card for audio files...\n");

	// Clear previous file list
	memset(file_list, 0, sizeof(file_list));
	file_count = 0;

	// Search for WAV files
	int wav_count = sd_card_list_files_match(MAX_FILES, MAX_FILENAME_LENGTH,
						file_list, NULL, "*.wav");
	if (wav_count > 0) {
		file_count = wav_count;
		printf("Found %d WAV files:\n", wav_count);
		for (int i = 0; i < wav_count; i++) {
			printf("  %d: %s\n", i + 1, file_list[i]);
		}
	}

	// Search for LC3 files
	int lc3_count = sd_card_list_files_match(MAX_FILES - file_count, MAX_FILENAME_LENGTH,
						&file_list[file_count], NULL, "*.lc3");
	if (lc3_count > 0) {
		printf("Found %d LC3 files:\n", lc3_count);
		for (int i = 0; i < lc3_count; i++) {
			printf("  %d: %s\n", file_count + i + 1, file_list[file_count + i]);
		}
		file_count += lc3_count;
	}

	if (file_count == 0) {
		printf("No audio files found on SD card\n");
	} else {
		printf("Total audio files found: %d\n", file_count);
	}
}

/**
 * @brief Play audio file
 */
static void play_audio_file(const char *filename)
{
	if (filename == NULL || strlen(filename) == 0) {
		printf("Error: Invalid filename\n");
		return;
	}

	printf("Playing file: %s\n", filename);

	// Check if it's a WAV file
	if (strstr(filename, ".wav") != NULL) {
		int ret = sd_card_playback_wav((char *)filename);
		if (ret == 0) {
			printf("Started playing WAV file: %s\n", filename);
		} else {
			printf("Failed to play WAV file %s: %d\n", filename, ret);
		}
	}
	// Check if it's an LC3 file
	else if (strstr(filename, ".lc3") != NULL) {
		int ret = sd_card_playback_lc3((char *)filename);
		if (ret == 0) {
			printf("Started playing LC3 file: %s\n", filename);
		} else {
			printf("Failed to play LC3 file %s: %d\n", filename, ret);
		}
	}
	else {
		printf("Unsupported file format: %s\n", filename);
		printf("Supported formats: .wav, .lc3\n");
	}
}

/**
 * @brief Create ZBus subscribers
 */
static int zbus_subscribers_create(void)
{
	int ret;

	button_msg_sub_thread_id = k_thread_create(&button_msg_sub_thread_data,
						 button_msg_sub_thread_stack,
						 K_THREAD_STACK_SIZEOF(button_msg_sub_thread_stack),
						 button_msg_sub_thread, NULL, NULL, NULL,
						 K_PRIO_PREEMPT(CONFIG_BUTTON_MSG_SUB_PRIO), 0,
						 K_NO_WAIT);

	if (!button_msg_sub_thread_id) {
		LOG_ERR("Failed to create button message subscriber thread");
		return -ENOMEM;
	}

	ret = k_thread_name_set(button_msg_sub_thread_id, "BUTTON_MSG_SUB");
	if (ret) {
		LOG_ERR("Failed to set thread name");
		return ret;
	}

	// Create console thread
	console_thread_id = k_thread_create(&console_thread_data,
					   console_thread_stack,
					   K_THREAD_STACK_SIZEOF(console_thread_stack),
					   console_thread, NULL, NULL, NULL,
					   K_PRIO_PREEMPT(CONFIG_BUTTON_MSG_SUB_PRIO), 0,
					   K_NO_WAIT);

	if (!console_thread_id) {
		LOG_ERR("Failed to create console thread");
		return -ENOMEM;
	}

	ret = k_thread_name_set(console_thread_id, "CONSOLE_THREAD");
	if (ret) {
		LOG_ERR("Failed to set console thread name");
		return ret;
	}

	ret = zbus_chan_add_obs(&button_chan, &button_evt_sub, K_NO_WAIT);
	if (ret) {
		LOG_ERR("Failed to add button subscriber to channel");
		return ret;
	}

	return 0;
}

/**
 * @brief Link ZBus producers and observers
 */
static int zbus_link_producers_observers(void)
{
	int ret;

	ret = zbus_chan_add_obs(&button_chan, &button_evt_sub, K_NO_WAIT);
	if (ret) {
		LOG_ERR("Failed to add button subscriber to channel");
		return ret;
	}

	return 0;
}

/**
 * @brief Main function
 */
int main(void)
{
	int ret;

	printf("\n=== nRF5340 Audio DK SD Card Playback Application ===\n");
	printf("Serial Monitor Commands:\n");
	printf("  list, ls              - List SD card files\n");
	printf("  playback <filename>   - Play audio file\n");
	printf("  status, s             - Show playback status\n");
	printf("  help, h               - Show help\n");
	printf("  clear, cls            - Clear screen\n");
	printf("====================================================\n\n");

	/* Initialize board */
	ret = nrf5340_audio_dk_init();
	if (ret) {
		LOG_ERR("Failed to initialize nRF5340 Audio DK: %d", ret);
		return ret;
	}

	/* Initialize button handler */
	ret = button_handler_init();
	if (ret) {
		LOG_ERR("Failed to initialize button handler: %d", ret);
		return ret;
	}

	/* Initialize SD card */
	ret = sd_card_init();
	if (ret) {
		LOG_ERR("Failed to initialize SD card: %d", ret);
		printf("SD card may not be inserted or properly connected\n");
	} else {
		printf("SD card initialized successfully\n");
	}

	/* Initialize SD card playback */
	ret = sd_card_playback_init();
	if (ret) {
		LOG_ERR("Failed to initialize SD card playback: %d", ret);
		return ret;
	}
	printf("SD card playback initialized successfully\n");

	/* Initialize audio system */
	ret = audio_system_init();
	if (ret) {
		LOG_ERR("Failed to initialize audio system: %d", ret);
		return ret;
	}

	/* Initialize Bluetooth management */
	ret = bt_mgmt_init();
	if (ret) {
		LOG_ERR("Failed to initialize Bluetooth management: %d", ret);
		return ret;
	}

	/* Create ZBus subscribers */
	ret = zbus_subscribers_create();
	if (ret) {
		LOG_ERR("Failed to create ZBus subscribers: %d", ret);
		return ret;
	}

	/* Link ZBus producers and observers */
	ret = zbus_link_producers_observers();
	if (ret) {
		LOG_ERR("Failed to link ZBus producers and observers: %d", ret);
		return ret;
	}

	/* Start threads */
	k_thread_start(button_msg_sub_thread_id);
	k_thread_start(console_thread_id);

	printf("Application started successfully\n");
	printf("Type 'help' for available commands\n");

	/* Main loop */
	while (1) {
		k_sleep(K_SECONDS(1));
	}

	return 0;
}

[Hieu]

Hi wnsdud1643,

I don't yet know which piece of code and which config should be taken or trimmed from the example application. However, the root of the error you are having is here:

sdk-nrf/applications/nrf5340_audio/CMakeLists.txt at v3.0.2 · nrfconnect/sdk-nrf

The nRF5340 Audio application is designed to require one of the provided extra Kconfig file. As you are modifying the implementation, you might or might not need one of those. You can add the files to the build, or simply comment out the check, depends on your actual need.

Hieu