BLE Conectionless and DFU

[Mats N]

Hi,

We are currently working on a project involving a few Connectionless BLE advertisement transmitters based on nRF52832 (SoftDevice 6.1.0). On the receiving end we have an nRF52840.

Now we are investigating the possibility to implement DFU in this solution.

When in Connectionless mode, we cannot establish a connection and perform a DFU so I suppose that we need to be able to switch between advertisement modes in order to get this to work.

Is it possible to swith between advertisement modes during runtime? Is this the strategy we should have?

Do you have any better suggestions on how to achieve DFU functionality in our setup?

Regards,

Mats

[Vidar Berg]

Hi Mats,

It is not a problem to switch to connectable advertising on the fly, but you need a way to signal the peripheral to switch mode, which may be difficult if your not in a connection or have physical access to the device. Is DFU going to be initiated by the receiver, or by an user with a smartphone,etc?  

Regards,

Vidar