Hello everyone
I need help. I have a custom board that uses the nRF5340 microcontroller. I am using the Zephyr OS and nRF Connect SDK Toolchain v2.9.0. How do I update my microcontroller's firmware over Bluetooth (preferably for both cores)? Do I need to use MCUBoot? How do I configure it?
My firmware is configured for an nRF5340 microcontroller with a dual-core architecture:
- Application Core: Executes the main application firmware.
- Network Core: Exclusively manages the Bluetooth stack via HCI IPC (Host Controller Interface over Inter-Processor Communication)
I tried to follow a tutorial that suggested to insert the lines "CONFIG_BOOTLOADER_MCUBOOT=y" and "CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y" in the prj.conf file but it doesn't work. When connecting to my device with the nrf Connect App I don't see the DFU button on the top right.
The fact that I am using the internal oscillator, could that be a problem? Indeed, to make the Bluetooth stack work, I had to modify the v2.9.0/zephyr/samples/bluetooth/hci_ipc/prj.conf file and add the following lines:
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y
as well as having to add the lines to my project's prj.conf file.
This is the contents of my prj.conf file:
CONFIG_CPP=y CONFIG_STD_CPP11=y CONFIG_CPP_EXCEPTIONS=y CONFIG_SOC_ENABLE_LFXO=n CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION=y CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y # Stack Bluetooth CONFIG_BT=y CONFIG_BT_PERIPHERAL=y CONFIG_BT_DEVICE_NAME="AH03" CONFIG_BT_DEVICE_NAME_DYNAMIC=y CONFIG_BT_DEVICE_NAME_MAX=65 CONFIG_BT_DIS_PNP=n CONFIG_BT_SMP=y CONFIG_BT_SIGNING=y CONFIG_BT_KEYS_OVERWRITE_OLDEST=y CONFIG_BT_SETTINGS=y CONFIG_BT_PRIVACY=n CONFIG_BT_ATT_PREPARE_COUNT=5 CONFIG_BT_BUF_ACL_RX_SIZE=251 CONFIG_BT_BUF_ACL_TX_SIZE=251 CONFIG_BT_L2CAP_TX_MTU=247 CONFIG_BT_CTLR_DATA_LENGTH_MAX=251 CONFIG_SETTINGS=y CONFIG_FLASH=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_FLASH_MAP=y CONFIG_NVS=y # Inter-Processor Communication (IPC) CONFIG_IPC_SERVICE=y CONFIG_IPC_SERVICE_BACKEND_RPMSG=y CONFIG_MBOX=y CONFIG_MBOX_NRFX_IPC=y # Debugging & Logging (RTT - Real-Time Terminal) CONFIG_CONSOLE=y CONFIG_USE_SEGGER_RTT=y CONFIG_RTT_CONSOLE=y CONFIG_PRINTK=y CONFIG_LOG=y CONFIG_LOG_BACKEND_RTT=y CONFIG_LOG_PRINTK=n CONFIG_LOG_BUFFER_SIZE=4096 CONFIG_LOG_MODE_IMMEDIATE=y CONFIG_GPIO=y CONFIG_PWM=y CONFIG_I2C=y CONFIG_ADC=y CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048 CONFIG_MAIN_STACK_SIZE=4096 CONFIG_BT_HCI_ACL_FLOW_CONTROL=y CONFIG_BOOTLOADER_MCUBOOT=y CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y
Below is the structure of my project:
Can anyone help me?
thanks
UPDATE: I tried following this tutorial: https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-5-fota-over-bluetooth-low-energy/
I added the line SB_CONFIG_BOOTLOADER_MCUBOOT=y to my sysbuild.conf file:
my sysbuild.conf file:
SB_CONFIG_NETCORE_APP_UPDATE=y SB_CONFIG_NETCORE_HCI_IPC=y SB_CONFIG_BOOTLOADER_MCUBOOT=y
I removed the line CONFIG_BOOTLOADER_MCUBOOT=y from my prj.conf file and kept the line CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y. The project compiles without errors, but the firmware no longer works. If I start debugging, the code "gets lost" somewhere, and I don't understand why.
JLinkGDBServerCLexe: SEGGER J-Link GDB Server V8.12b Command Line Version JLinkGDBServerCLexe: JLinkGDBServerCLexe: JLinkARM.dll V8.12b (DLL compiled Jan 15 2025 13:47:14) JLinkGDBServerCLexe: JLinkGDBServerCLexe: -----GDB Server start settings----- JLinkGDBServerCLexe: GDBInit file: none JLinkGDBServerCLexe: GDB Server Listening port: 49377 JLinkGDBServerCLexe: SWO raw output listening port: 2332 JLinkGDBServerCLexe: Terminal I/O port: 2333 JLinkGDBServerCLexe: Accept remote connection: yes JLinkGDBServerCLexe: Generate logfile: off JLinkGDBServerCLexe: Verify download: off JLinkGDBServerCLexe: Init regs on start: off JLinkGDBServerCLexe: Silent mode: on JLinkGDBServerCLexe: Single run mode: on JLinkGDBServerCLexe: Target connection timeout: 0 ms JLinkGDBServerCLexe: ------J-Link related settings------ JLinkGDBServerCLexe: J-Link Host interface: USB JLinkGDBServerCLexe: J-Link script: none JLinkGDBServerCLexe: J-Link settings file: none JLinkGDBServerCLexe: ------Target related settings------ JLinkGDBServerCLexe: Target device: nrf5340_xxaa_app JLinkGDBServerCLexe: Target device parameters: none JLinkGDBServerCLexe: Target interface: SWD JLinkGDBServerCLexe: Target interface speed: 4000kHz JLinkGDBServerCLexe: Target endian: little JLinkGDBServerCLexe: =thread-group-added,id="i1" =cmd-param-changed,param="pagination",value="off" 0x00006c0c in ?? () [New Thread 1576352692]
