DFU bootloader

[FormerMember]

HELLO everyone, i know we can download application by dfu, can we download bootloader and softdevice by dfu??

if you know, please tell me, thank you

[Ole Bauck]

Hi,

Yes you can. As the documentation for the BLE secure DFU bootloader example says:

The example bootloader accepts images that contain a new bootloader, SoftDevice, application, or any combination of these.

Ole

[FormerMember]

hello friend,i see the Memory resource map and usage,but i still don't know why it should be 0x3440.i use nrf51822QFAA with 256KB flash and 16kb ram, and i download the SDK12.2.0 softdevice s130,and download the sdk12.2.0 ANCS project application,it can't run,the RAM and flash. RAM=ZI-data + RW-data.and in the SDK12.2.0 ANCS project.RAM=8480+504=8984=8.984KB flash=Code + RO-data + RW-data,and in the SDK12.2.0 ANCS project.flash=39772+1964+504=42240=42.24KB. i know because the RAM is not enough. but i don't know why it could be 0x3440.can i calculate the value without print out?because i use nrf51822QFAA,i can't debug now