dfu on nrf52832 s112 softdevice

[amar_d]

I am using nrf52832 dk,i have built an application using s112 which works fine. i want to implement DFU on nrf52832 with s112 only.please guide me

[Vidar Berg]

Hi,

Please take a look at the most recent replies in this thread here: https://devzone.nordicsemi.com/f/nordic-q-a/63362/secure-buttonless-dfu-problem-on-nrf52832-soft-device-112 where I uploaded a nRF52832 app with the DFU buttonless mechanism and a 52832 bootloader that works with s112 Softdevice. It's based on SDK 16.0.0 but there should only be minor differences if you use SDK 17.0.0

[amar_d]

It worked fine on nrf52832 512kb dk. i have a custom built nrf52832 256kb device .The dfu bootloader while in debug mode gives an error "Boot validation failed".The application gets uploaded but it goes back in dfu mode.please help 

[Vidar Berg]

Have you updated the memory layout in both projects to match your device?