NRF52832 buttonless dfu IAR

[Alex_Golubev]

Hi.

I did the secure bootloader DFU. I attained step 8 in document.

I instal softdevice and secure bootloader to flash nRF52832. After make the ble_app_buttonless_dfu start download and debug but program not start.

If install only softdevice and buttonless_dfu then I got error "No bootloader was found".

If install softdevice and bootloader after buttonless dfu then I got not start programs.

Although security bootloader work. 
The verification was performed in the following steps:

E1. Generate new firmware.

E2. Generate new DFU .zip package.

E3. Switch the device to DFU mode, do DFU update and verify new image is running.

Help me.

[Hung Bui]

Hi Alex, 

Could you test first with a normal application instead of the buttonless example ? For example ble_app_hrs ? 

Buttonless example requires bootloader setting to be generated and flashed. 

I would suggest you to follow the tutorial here. 

[Alex_Golubev]

I made the following:

Step A. Generating keys.

Step B. Build the bootloader.

B1. Compile the uECC library.

I download the library to the SDK folder.

I  start building uECC.

Copy the public_key in IAR.

Build the bootloader.

Step C.

generate bootloader setting.

mergehex


zip file



watch the video here 

What do I do wrong? 

[Hung Bui]

Hi Alex, 

I'm not sure why you merge the bootloader setting with the application. It's not needed in this case.

Please try to follow my blog that I mentioned in last answer. 

I can see when you create the .zip file you used --sd-reg 0xA9, why you used A9 ? Please use the correct softdevice code according to this table: 

SoftDevice	FWID (sd-req)
s112_nrf52_6.0.0	0xA7
s112_nrf52_6.1.0	0xB0
s130_nrf51_1.0.0	0x67
s130_nrf51_2.0.0	0x80
s132_nrf52_2.0.0	0x81
s130_nrf51_2.0.1	0x87
s132_nrf52_2.0.1	0x88
s132_nrf52_3.0.0	0x8C
s132_nrf52_3.1.0	0x91
s132_nrf52_4.0.0	0x95
s132_nrf52_4.0.2	0x98
s132_nrf52_4.0.3	0x99
s132_nrf52_4.0.4	0x9E
s132_nrf52_4.0.5	0x9F
s132_nrf52_5.0.0	0x9D
s132_nrf52_5.1.0	0xA5
s132_nrf52_6.0.0	0xA8
s132_nrf52_6.1.0	0xAF
s140_nrf52_6.0.0	0xA9
s140_nrf52_6.1.0	0xAE

[Alex_Golubev]

Everything works.

There is a guide or an application note that explains the several steps needed to integrate buttonless DFU to a custom application???

[Hung Bui]

Maybe this guide can help ? 

We also have another tutorial here. 

[Alex_Golubev]

I get error.

What do I do wrong?

[Hung Bui]

Have you check if nrf_svci_async_function.h is included ? I'm not very familiar with IAR but can you build the ble_app_buttonless_dfu with IAR ?