Latest status of Buttonless secure DFU in SDK 13.0

[sam wagner]

Hi,

I just got the email about SDK13.0 official release. The list of changes in this release include "Secure DFU improvements". What does it mean? Is Buttonless Secure DFU completely supported in this release?

Regards, Sam

[Hung Bui]

Hi Sam,

Compare to SDK v13 alpha, the buttonless example in the SDK v13 official doesn't change much.

• It is still in experimental mode

• Some issues on SDK v12 and 13 alpha were fixed such as the characteristic's write property missing, the bootloader_setting section missing were fixed.

• Now we use RAM retention register GPREGRET to set the flag to enter bootloader mode instead of writing to flash.

• Change the service's UUID to the Secure-DFU UUID

• Change from the DFU control point property from notification to indication

• Requires nRFutil v2.2.0

[bswimley]

Hi, Has there been any progress on this issue with SDK 13? I see that you had indicated something happening in the March or April time frame. Like Sam, we would like to support sharing bonding between the app and the DFU.