OTA - Not working in Zephyr but works in SoftDevice

[Neeraj Dhekale]

Hello,

I am using Celium device's BE33 (nRF52833 based) Click here for datasheet. there are crystal pins exposed in this controller but I dont want to use external crystal so I have added below to prj.conf

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y

I am trying to implement https://getwavecake.com/blog/adding-ota-dfu-to-a-nordic-zephyr-project/ This example which is a reference of Nordic/Zephyr/samples/bluetooth/peripheral_hr example.

Here I am facing a boot problem. Once I set CONFIG_BOOTLOADER_MCUBOOT=y this problem begins. I need to touch to the crystal pins once to get started otherwise it won't start on its own. But when I am using softdevice DFU example it works well without the need to touch the crystal pins. why so ? Am I doing anything wrong?

Thanks in advance.

Regards,

Neeraj Dhekale

[Amanda Hsieh]

Hi, 

Try to create child_image/mcuboot.conf and add those configs to the mcuboot.conf.

Regards,
Amanda H.

[Neeraj Dhekale]

Hello Amanda,

Thanks for your reply.

Could you please help me to guide me on how to create a child image? I tried creating a folder in root directory and mcuboot.conf inside it with configuration. but I am not able to link it. While making the build it is not considering the mcuboot.

Also tried to copy subsys example of smp_svr into root and tried to map it with below code in CMakeLists.txt

# SPDX-License-Identifier: Apache-2.0

cmake_minimum_required(VERSION 3.20.0)
set(mcuboot_CONFIG_BOOT_SIGNATURE_KEY_FILE \"${CMAKE_CURRENT_SOURCE_DIR}/priv.pem\")

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(peripheral_hr)

FILE(GLOB app_sources src/*.c)
target_sources(app PRIVATE
  ${app_sources}
  )
  add_child_image(
    NAME smp_svr
    SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/smp_svr
)
zephyr_library_include_directories(${ZEPHYR_BASE}/samples/bluetooth)

But it shows error to add_child_image function in CMakeLists.txt file.

Thanks and regards,

Neeraj Dhekale

[Amanda Hsieh]

Just create a folder under the application like this

-Amanda H.

[Neeraj Dhekale]

Hello,

I tried to implement and when I click on the build option it goes into an infinite loop. it continuously keeps building without any error. Here is screenshot attached for your reference.

Please help. am I doing anything wrong?

Thanks and regards,

Neeraj Dhekale

[Amanda Hsieh]

Not sure what is wrong. 

Try to delete the build configuration and create it again. 

-Amanda H.

[Neeraj Dhekale]

Hello Amanda,

Sorry for the delay in response.

I have create folder named "child_image" in peripheral_hr project.

in child_image folder I have created new folder named mcuboot and created prj.conf file in it.

in peripheral_hr/prj.conf file I have added below line:

CONFIG_BOOTLOADER_MCUBOOT=y

added content of /child_image/mcuboot/prj.conf file:

# Enable mcumgr.
CONFIG_MCUMGR=y

# Some command handlers require a large stack.
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096

# Ensure an MCUboot-compatible binary is generated.
CONFIG_BOOTLOADER_MCUBOOT=y

# Enable flash operations.
CONFIG_FLASH=y

# Required by the `taskstat` command.
CONFIG_THREAD_MONITOR=y

# Enable statistics and statistic names.
CONFIG_STATS=y
CONFIG_STATS_NAMES=y

# Enable most core commands.
CONFIG_MCUMGR_CMD_IMG_MGMT=y
CONFIG_MCUMGR_CMD_OS_MGMT=y
CONFIG_MCUMGR_CMD_STAT_MGMT=y

# Allow for large Bluetooth data packets.
CONFIG_BT_L2CAP_TX_MTU=252
CONFIG_BT_BUF_ACL_RX_SIZE=256

# Enable the Bluetooth (unauthenticated) and shell mcumgr transports.
CONFIG_MCUMGR_SMP_BT=y
CONFIG_MCUMGR_SMP_BT_AUTHEN=n
CONFIG_MCUMGR_SMP_SHELL=y
CONFIG_CHILDAPP_BUILD_STRATEGY_FROM_SOURCE=y

Next, I copied the boot folder and other content of mcuboot folder from mcuboot github.

in peripheral_hr folder I have added below lines in CMakeLists.txt file:

if (CONFIG_BOOTLOADER_MCUBOOT)
   add_child_image(
     NAME mcuboot
     SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/child_image/mcuboot/zephyr
     )
endif()

After the build I am getting the below error:

*  Executing task: nRF Connect: Generate config nrf52833dk_nrf52833 for /home/neeraj/Applications/Nordic/peripheral_hr

Building peripheral_hr
/bin/sh -c west build --build-dir /home/neeraj/Applications/Nordic/peripheral_hr/build /home/neeraj/Applications/Nordic/peripheral_hr --pristine --board nrf52833dk_nrf52833 -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DBOARD_ROOT:STRING="/home/neeraj/Applications/Nordic/peripheral_hr"

-- west build: generating a build system
Including boilerplate (Zephyr base): /home/neeraj/Applications/Nordic/zephyr/cmake/app/boilerplate.cmake
-- Application: /home/neeraj/Applications/Nordic/peripheral_hr
-- Zephyr version: 2.7.0 (/home/neeraj/Applications/Nordic/zephyr), build: v2.7.0-ncs1
-- Found Python3: /usr/bin/python3.10 (found suitable exact version "3.10.12") found components: Interpreter
-- Found west (found suitable version "0.13.1", minimum required is "0.7.1")
-- Board: nrf52833dk_nrf52833
-- Cache files will be written to: /home/neeraj/.cache/zephyr
-- Found dtc: /usr/bin/dtc (found suitable version "1.6.1", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (/home/neeraj/gnuarmemb)
-- Found BOARD.dts: /home/neeraj/Applications/Nordic/zephyr/boards/arm/nrf52833dk_nrf52833/nrf52833dk_nrf52833.dts
-- Found devicetree overlay: /home/neeraj/Applications/Nordic/peripheral_hr/nrf52833dk_nrf52833.overlay
-- Generated zephyr.dts: /home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/include/generated/devicetree_unfixed.h
-- Generated device_extern.h: /home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/include/generated/device_extern.h
-- Including generated dts.cmake file: /home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/dts.cmake

warning: BT_CTLR_ADVANCED_FEATURES (defined at subsys/bluetooth/controller/Kconfig.ll_sw_split:114)
was assigned the value 'y' but got the value 'n'. Check these unsatisfied dependencies:
BT_LL_SW_SPLIT (=n). See
docs.zephyrproject.org/.../CONFIG_BT_CTLR_ADVANCED_FEATURES.html and/or
look up BT_CTLR_ADVANCED_FEATURES in the menuconfig/guiconfig interface. The Application Development
Primer, Setting Configuration Values, and Kconfig - Tips and Best Practices sections of the manual
might be helpful too.


warning: The choice symbol WDT_LOG_LEVEL_DBG (defined at
subsys/logging/Kconfig.template.log_config:20) was selected (set =y), but no symbol ended up as the
choice selection. See
docs.zephyrproject.org/.../CONFIG_WDT_LOG_LEVEL_DBG.html and/or look up
WDT_LOG_LEVEL_DBG in the menuconfig/guiconfig interface. The Application Development Primer, Setting
Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be helpful
too.

Parsing /home/neeraj/Applications/Nordic/zephyr/Kconfig
Loaded configuration '/home/neeraj/Applications/Nordic/zephyr/boards/arm/nrf52833dk_nrf52833/nrf52833dk_nrf52833_defconfig'
Merged configuration '/home/neeraj/Applications/Nordic/peripheral_hr/prj.conf'
Configuration saved to '/home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/.config'
Kconfig header saved to '/home/neeraj/Applications/Nordic/peripheral_hr/build/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 10.3.1
-- The CXX compiler identification is GNU 10.3.1
-- The ASM compiler identification is GNU
-- Found assembler: /home/neeraj/gnuarmemb/bin/arm-none-eabi-gcc

=== child image mcuboot -  begin ===
Including boilerplate (Zephyr base): /home/neeraj/Applications/Nordic/zephyr/cmake/app/boilerplate.cmake
-- Application: /home/neeraj/Applications/Nordic/bootloader/mcuboot/boot/zephyr
-- Zephyr version: 2.7.0 (/home/neeraj/Applications/Nordic/zephyr), build: v2.7.0-ncs1
-- Found Python3: /usr/bin/python3.10 (found suitable exact version "3.10.12") found components: Interpreter
-- Found west (found suitable version "0.13.1", minimum required is "0.7.1")
-- Board: nrf52833dk_nrf52833
-- Cache files will be written to: /home/neeraj/.cache/zephyr
-- Found dtc: /usr/bin/dtc (found suitable version "1.6.1", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (/home/neeraj/gnuarmemb)
-- Found BOARD.dts: /home/neeraj/Applications/Nordic/zephyr/boards/arm/nrf52833dk_nrf52833/nrf52833dk_nrf52833.dts
-- Found devicetree overlay: /home/neeraj/Applications/Nordic/nrf/modules/mcuboot/usb.overlay
-- Found devicetree overlay: /home/neeraj/Applications/Nordic/bootloader/mcuboot/boot/zephyr/dts.overlay
-- Generated zephyr.dts: /home/neeraj/Applications/Nordic/peripheral_hr/build/mcuboot/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /home/neeraj/Applications/Nordic/peripheral_hr/build/mcuboot/zephyr/include/generated/devicetree_unfixed.h
-- Generated device_extern.h: /home/neeraj/Applications/Nordic/peripheral_hr/build/mcuboot/zephyr/include/generated/device_extern.h
-- Including generated dts.cmake file: /home/neeraj/Applications/Nordic/peripheral_hr/build/mcuboot/zephyr/dts.cmake

warning: BOOTLOADER_MCUBOOT (defined at Kconfig.zephyr:561) was assigned the value 'y' but got the
value 'n'. Check these unsatisfied dependencies: (!MCUBOOT) (=n). See
docs.zephyrproject.org/.../CONFIG_BOOTLOADER_MCUBOOT.html and/or look up
BOOTLOADER_MCUBOOT in the menuconfig/guiconfig interface. The Application Development Primer,
Setting Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be
helpful too.


/home/neeraj/Applications/Nordic/peripheral_hr/child_image/mcuboot/prj.conf:33: warning: attempt to assign the value 'y' to the undefined symbol CHILDAPP_BUILD_STRATEGY_FROM_SOURCE

error: Aborting due to Kconfig warnings

Parsing /home/neeraj/Applications/Nordic/bootloader/mcuboot/boot/zephyr/Kconfig
Loaded configuration '/home/neeraj/Applications/Nordic/zephyr/boards/arm/nrf52833dk_nrf52833/nrf52833dk_nrf52833_defconfig'
Merged configuration '/home/neeraj/Applications/Nordic/peripheral_hr/child_image/mcuboot/prj.conf'
Merged configuration '/home/neeraj/Applications/Nordic/nrf/subsys/partition_manager/partition_manager_enabled.conf'
CMake Error at /home/neeraj/Applications/Nordic/zephyr/cmake/kconfig.cmake:270 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  /home/neeraj/Applications/Nordic/zephyr/cmake/app/boilerplate.cmake:546 (include)
  /home/neeraj/Applications/Nordic/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /home/neeraj/Applications/Nordic/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:44 (find_package)


-- Configuring incomplete, errors occurred!
CMake Error at /home/neeraj/Applications/Nordic/nrf/cmake/multi_image.cmake:306 (message):
  CMake generation for mcuboot failed, aborting.  Command: 1
Call Stack (most recent call first):
  /home/neeraj/Applications/Nordic/nrf/cmake/multi_image.cmake:68 (add_child_image_from_source)
  /home/neeraj/Applications/Nordic/nrf/modules/mcuboot/CMakeLists.txt:216 (add_child_image)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -DWEST_PYTHON=/usr/bin/python3 -B/home/neeraj/Applications/Nordic/peripheral_hr/build -S/home/neeraj/Applications/Nordic/peripheral_hr -GNinja -DBOARD=nrf52833dk_nrf52833 -DNCS_TOOLCHAIN_VERSION:STRING=NONE -DBOARD_ROOT:STRING=/home/neeraj/Applications/Nordic/peripheral_hr

 *  The terminal process terminated with exit code: 1.
 *  Terminal will be reused by tasks, press any key to close it.

[Amanda Hsieh]

Hi, 

Please check this guide Add DFU support to your application. 

Regards,
Amanda H.

[Neeraj Dhekale]

Hi Amanda,

Neeraj Dhekale said:

I need to touch to the crystal pins once to get started otherwise it won't start on its own. But when I am using softdevice DFU example it works well without the need to touch the crystal pins

I have followed all the steps the same way you have suggested  in the above link... I am able to build and flash successful.. but the above problem persist as I have mentioned in my 1st main thread.

Why do I need to toch to crystal pins to make it start. once it is is started I don't need to touch and DFU works very well.

Now I can see mcuboot under build. This means child_image has been considered to it. I hope so.

Am I doing anything wrong?

Thanks and regards,

Neeraj Dhekale

[Amanda Hsieh]

Hi, 

Try to add CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y and CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y in the child_image/mcuboot/prj.conf.

-Amanda H.