Hello,
I am trying to merge the code of ble_app_buttonless_dfu with the code of ble_app_uart, because I starts all implementation with the code of ble_app_uart at first,
I describe all procedure related with DFU test, I already succeeded DFU test with the hex file of ble_app_buttonless_dfu and then I am trying to do DFU test with merged code,
when trying to download new application package with dfu app of nrf tool(android phone), DFU CHARACTERISTICS NOT FOUND is happened,...why?
please help to let me know what the problem is,
thankful for your support in advance, thanks...
1) Installing nrfutil,
* Python 2.7 (2.7.6 or later, but not Python 3)
* pip (see Installing Python Modules)
Need to follow the procedure by referring http://nomis.tistory.com/115
after that, try to type "pip install nrfutil"
2) Installing micro-ecc,
Can find the micro-ecc in SDK_folder as follows,
ex) C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\external\micro-ecc
Need to download uECC library in SDK-Folder/external/micro-ecc/micro-ecc from github.com/.../micro-ecc
please user the following command in external/micro-ecc in cmd shell,
git clone github.com/.../micro-ecc.git
3) Installing GNU Make environment,
following http://ts.devbj.com/277
After 1/2/3 steps, can build bootload (C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\examples\dfu\bootloader_secure_ble)
following the procedure by referring the steps as follows,
1. Build micro-ecc,
in C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\external\micro-ecc\nrf52_armgcc\armgcc
type 'build'
can get micro_ecc_lib_nrf52.a
1. Build bootloader (bootloader_secure_ble),
#ifndef NRF_DFU_BLE_BUTTONLESS_SUPPORTS_BONDS
#define NRF_DFU_BLE_BUTTONLESS_SUPPORTS_BONDS 0
#endif
2-1) Need to create private key for public key,
make folder,
type 'mkdir private_key'
enter the folder,
type 'nrfutil keys generate private.key'
after getting private.key, need to make public.key
type ' keys display --key pk --format code private.key --out_file public_key.c'
- Need to keep the private.key
2-2) build bootloader code with public_key
Change the public key in dfu_public_key.c of C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\examples\dfu\dfu_req_handling
build the micro-ecc
in my case, hope to use nrf52_armgcc,
so in C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\external\micro-ecc\nrf52_armgcc\armgcc,
type 'make'
can check micro_ecc_lib_nrf52.a
this library will be used in build-procedure of secure bootloader,
after that, in C:\working_dir\new_ble\nRF5_SDK_14.1.0_1dda907\examples\dfu\bootloader_secure_ble\pca10040\armgcc
type 'make'
can check nrf52832_xxaa_s132.hex
1. Original Image Creation
Firstly Need to make original total-image in order to download image through DFU function,
Need to make settings.hex file (including init packet),
so please gather all images related with softdevice, bootloader(bootloader_secure_ble) and application(ble_app_buttonless_dfu) in one folder,
after that, type the following command,
3-1) Create and view the settings.hex file. nrf52832_xxaa.hex ==> application hex file / nrf52832_xxaa_s132.hex ==> secure bootloader hex file,
nrfutil settings generate --family NRF52 --application nrf52832_xxaa.hex --application-version 3 --bootloader-version 2 --bl-settings-version 1 settings.hex
nrfutil settings display settings.hex
3-2) Combine the softdevice with the bootloader
mergehex --merge s132_nrf52_5.0.0_softdevice.hex nrf52832_xxaa_s132.hex --output SD_BL.hex
3-3) Add the application to it
mergehex --merge SD_BL.hex nrf52832_xxaa.hex --output SD_BL_APP.hex
3-4) Add the settings file to the Softdevice/bootloader/application hex
mergehex --merge SD_BL_APP.hex settings.hex --output SD_EL_APP_valid.hex
3-5) Flash it on the board after that, we can try to download app package by app in the phone,
nrfjprog --chiperase --program SD_EL_APP_valid.hex -f NRF52 -r
Other examples of flashing :
nrfjprog --family nRF52 --program softdevice_bootloader_secure_ble_debug_without_bonds_s132.hex
nrfjprog --family nRF52 --program ble_app_buttonless_dfu_without_bonds_s132_with_setting_page.hex
1. Create a firmware package(application or bootloader or bootloader+softdevice),
Type the following command, need to update the version than original-version, ex) will download original image with 3 version as to application so need
to upgrade the version to 4 version as follows with the same private key as original image,
nrfutil pkg generate --hw-version 52 --sd-req 0x9D --application-version 4 --application ./_build/nrf52832_xxaa.hex --key-file private.key app_dfu_package.zip
ref)
nrfutil pkg generate --help ==> In oder to check the number of softdevice version for --sd-req need to use 0x9D by |s132_nrf52_5.0.0|0x9D|
and I merged the code like below,
in the main routine of my code,
#ifdef DFU_BUTTONLESS_ENABLE//love_0122
ble_dfu_buttonless_init_t dfus_init =
{
.evt_handler = ble_dfu_evt_handler
};
// Initialize the async SVCI interface to bootloader.
err_code = ble_dfu_buttonless_async_svci_init();
APP_ERROR_CHECK(err_code);
err_code = ble_dfu_buttonless_init(&dfus_init);
APP_ERROR_CHECK(err_code);
#endif
thanks.
