Cannot run Buttonless DFU Template Application

[StevenW807]

Hi, I'm following the Buttonless DFU Template Application on nRF52 DK (PCA10040), SDK 17.0.2. From my understanding, we need to use the following codes to merge the following 4 hex files: 

4 Files
1) s132_nrf52_7.2.0_softdevice.hex
2) ble_app_uart_pca10040_s132.hex (My own application's output hex file )
3) bootloader_setting.hex
4) secure_bootloader_ble_s132_pca10040.hex (Provided application "secure_bootloader" output hex file )

Code: 
mergehex.exe -m ble_app_uart_pca10040_s132.hex   s132_nrf52_7.2.0_softdevice.hex  -o  sd_and_app.hex

mergehex.exe -m sd_and_app.hex   bootloader_setting.hex  -o  sd_app_setting.hex

mergehex.exe -m sd_app_setting.hex   secure_bootloader_ble_s132_pca10040.hex  -o  sd_app_boot_setting_complete.hex

Then, use nRF Connect --> Programmer, earse the board, then drag and drop hex file sd_app_boot_setting_complete.hex to "File Memory Layout (red box)". 

However, on my mobile phone's nRF Connect App, it didn't detect any Nordic BLE device. Anything wrong in my procedure, please? 

[Vidar Berg]

Hello,

It looks like you have done everything correctly. Are you able to share the merged hex file so I can try to run it on a DK board here?

Thanks,

Vidar

[StevenW807]

Hi, Vidar. Thanks for your help. Here are 4 original files and the final merged file. 
1) s132_nrf52_7.2.0_softdevice.hex

1205.s132_nrf52_7.2.0_softdevice.hex
2) ble_app_uart_pca10040_s132.hex (My own application's output hex file )

ble_app_uart_pca10040_s132.hex
3) bootloader_setting.hex

4064.bootloader_setting.hex
4) secure_bootloader_ble_s132_pca10040.hex (Provided application "secure_bootloader" output hex file )

3301.secure_bootloader_ble_s132_pca10040.hex

5) Final merged file

sd_app_boot_setting_complete.hex

I guess we need to use "sd_s132_bootloader_buttonless_with_setting_page_dfu_secure_ble_debug_without_bonds.hex" file? But when I merge this file (instead of using "secure_bootloader_ble_s132_pca10040.hex" file), the error shows that: 

Overlapping segments detected at address 0.ERROR: The hex files cannot be merged since there are conflicts.

Thanks in advance! 

[Vidar Berg]

Hi,

The board advertises as "nRF52_SDP31_BLE DFU" when I program your merged hex, so it seems to be working OK. Did you press the "erase & write" button after you had imported the sd_app_boot_setting_complete.hex file?