OTA DFU NRF51822 Bootloader

RE: OTA DFU NRF51822 Bootloader

Hung Bui — Tue, 25 Sep 2018 08:38:06 GMT

Correct. You can have a look at this thread.

If you don't plan to buy the needle cable, you may need to do some soldering at least 4 pins needed: GND, VCC, SWDIO; SWDCLK.

RE: OTA DFU NRF51822 Bootloader

Enes — Mon, 24 Sep 2018 17:57:08 GMT

Thanks for your reply Hung,

So you are referring that there is no way to update my own firmware through OTA DFU to beacon without erasing the chip's bootlader which sounds like ONLY possible with SWD interface which requires a cable right? Could you please provide me the information about which kind of cable I need to send the code I have to the beacon through SWD? Thank you very much.

RE: OTA DFU NRF51822 Bootloader

Hung Bui — Mon, 24 Sep 2018 11:59:26 GMT

Hi Enes,

The beacon DFU is supposed to update Nordic's Beacon image only. When you creating your image, you already generate and used your own key file which wouldn't recognized by the bootloader. The operation will be failed.

The beacon was not made to be a development board but more like a reference design.

If you want to run your own firmware on the beacon, you would need to use a programmer and erase the chip's bootloader and flash your own firmware via the SWD interface.