NRF51822 to NRF51822 Over the air update (DFU)

[wogisha]

Hi

am working on a project and I need to have one NRF51 chip update another NRF51 chip, how can I go about this?

thank you

[endnode]

There seems to be no such example from Nordic but as long as you can fit the example into free memory of your nRF51 "updater" it should be fairly straight forward: implement GAP Central + GATT Client roles and mimic the same steps as Nordic DFU mobile/PC applications. Alternatively implement something custom which is even simpler in terms of protocol.

[wogisha]

thank you for the quick response. am having an issue with this, with using Database Discovery Module , can I make read and write, to characteristics directly with this module?

[endnode]

I guess so, why not? But I don't use it so it's better to open SDK and give it a try with some example. I believe your OTA DFU "problem" is pretty close to Nordic BLE UART Service (NUS) so just take two boards and run NUS examples against each other. From central it should be easy to go towards your desired Nordic DFU...

[wogisha]

you have pointed me in the right direction, the softdevice api for client has functions to help with this, let me use NUS and continue

thank you