nRF52832 Custom OTA Bootloader

[Geek]

Hello.

I want to develop a custom bootloader  able to update firmware version Over-The-Air  (BLE) 

I'm using a custom Dev Board based on nRF52832  with  and nRF SDK V15.0.

The aim is to download new firmware  without SoftDevice . How can I do this ?

Any idea will be appreciated :)

Can anybody help?

[Sigurd]

Hi,

Geek said:

The aim is to download new firmware  without SoftDevice .

What do you mean by this ?

If you are doing the OTA DFU over BLE, then you need to be using the SoftDevice(BLE stack) as the transport layer. But, you can of course do a single update containing only the new application firmware.

[Geek]

Hi,

Thank you for replay, so its the first time that i use Nordic  IC SoC (nRF52832) andI am not very familiar with their use, So  I would like to develop a bootloader to be able to update my firmware and I didn't know where to start and how I could test all this once my development finished. 

Assume that SoftDevice, How can I develope my custom bootloader ?

[Sigurd]

Hi,

Are you sure that you need a custom bootloader ? We already have bootloaders available, that fits most use-cases. You can find the bootloader example in <SDK_InstallFolder>\examples\dfu\bootloader_secure_ble

Take a look at this page and this page.