OTA - DFU in MDBT40 board.

RE: OTA - DFU in MDBT40 board.

bjorn-spockeli — Tue, 29 Jan 2019 08:37:41 GMT

Make sure that you erase the chip prior to flashing the bootloader. Use either nrfjprog or the nRF Programmer App in nRF Connect for Desktop.

I have attached the precompiled bootloader project for the nRF51 DK. In order to test it you have to flash the attachd S130 SoftDevice and use one of the test images in the SDK.

devzone.nordicsemi.com/.../nrf51422_5F00_xxac_5F00_s130.hex devzone.nordicsemi.com/.../s132_5F00_nrf52_5F00_3.0.0_5F00_softdevice.hex

RE: OTA - DFU in MDBT40 board.

Abhimanyu K K — Tue, 29 Jan 2019 05:06:31 GMT

Can you please send me a Bootloader program.

While I'm flashing my Bootloader it is showing like this.

I'm using Keil uVision5. and using ST-Link.

RE: OTA - DFU in MDBT40 board.

bjorn-spockeli — Mon, 28 Jan 2019 14:54:41 GMT

SDK v12.3.0 is the last SDK that supports nRF51 devices. I recommend that you take a look at the BLE Secure DFU Bootloader documentation, especially the Testing section.

You should be able to change the board header file(pca10028.h) to be compatible with your custom board.

Best regards
Bjørn

RE: OTA - DFU in MDBT40 board.

himanshu pande — Mon, 28 Jan 2019 13:24:12 GMT

MDBT40 is based on nrf51822. Check out the compatibility matrix and build the relevant example from the SDK(Open or Secure bootloader). Simply flashing the bootloader and softdevice, will allow you DFU of the application.

If you want to DFU while running the application, you will have to add the Nordic DFU service to the application.

Compatibility matrix:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Findex.html