How to do buttonless dfu

[ps_anu]

Hi, 

I am using nRF52832 and sdk 16

I am done secure bootloader dfu. By generating the new firmware application. Zip  , this part is working fine

Now I want to do buttonless dfu.  How to generate the bootloader settings? 

2.i have merged all the hex file into single hex file which include bootloader, softdevice, and application

3.how can I make my device to switch to dfu mode? 

Please suggest me an answer. 

Thanks

1. Pspavi

[Nikosant03]

Hi pspavi,

In order to enter DFU mode you have to use th Buttonless Secure DFU Service. the service will accept a data value (a characteristic) and write it to a register that is persistent across a device reset. The bootloader then reads this register to determine if it should continue with the DFU function, or pass control back to the application.

You can start by looking the ble_app_buttonless_dfu example. There are several things you have to do during integration. This is a great tutorial to follow

Hope that helps

Nick

[ps_anu]

Thank you for you response Nikosant 

yeah i followed the tutorial which you shared , i am getting undefined reference nrf_dfu_set_adv_name_svci_async_t

 i have done all the steps as per above tutorial

[Vidar Berg]

Hello,

Please make sure you have remembered to add 'NRF_DFU_TRANSPORT_BLE=1' to your preprocessor definitions.

[Nikosant03]

Provide the following preprocessor definitions

add the following files

and include the following headers

#include "ble_dfu.h"
#include "nrf_bootloader_info.h"
#include "nrf_dfu_ble_svci_bond_sharing.h"
#include "nrf_svci_async_function.h"
#include "nrf_svci_async_handler.h"

Do not forget to add also the User Include Directories in preprocessor

Nick

[ps_anu]

Hi, Nikosant 

yes i have done above all the process added the header files too i am getting the error 

and enabled the sdk configuration . 

../../../../../../components/libraries/bootloader
../../../../../../components/libraries/bootloader/dfu
../../../../../../components/libraries/bootloader/ble_dfu


#define BLE_DFU_ENABLED 1 // was 0 
#define NRF_PWR_MGMT_CONFIG_AUTO_SHUTDOWN_RETRY 1 // was 0 
#define NRF_SDH_BLE_VS_UUID_COUNT 2 // was 1
#define NRF_SDH_BLE_SERVICE_CHANGED 1 // was 0