How to flash Application hex file using DFU service

[saiteja]

Hi, i am using NRF52 and S132V2.0.0 SDK11. i am working on BLE application in which i implemented DFU service to it, so that i am able to observe DFU service and 3 characteristics. so i want to upload new hex file using this characteristics. i have tried with NRF connect but unable to upload application hex file. And also i need to upload app hex file using custom created Android application by using DFU characteristics.

[Bastien Reynard]

Hi,

You will need to create a ZIP package from your hex application file. You can use nrfutil to do such zip packages. For example with s132v2.0.0 softdevice:

nrfutil.exe dfu genpkg --application app.hex --application-version 0xFF --dev-revision 0xFF --dev-type 0xFFFF --sd-req 0x81 dfu_app.zip

Check this tutorial for more information.

[saiteja]

yes its

FLASH (rx) : ORIGIN = 0x1c000, LENGTH = 0x64000 RAM (rwx) : ORIGIN = 0x20002080, LENGTH = 0xdf80