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 my dear friend,thank you so much,i see 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 And from your chained address.i know the QFAA have 16KB RAM and 256KB flash;the QFAB have 16KB RAM and 128KB flash;the QFAC have 32KB RAM and 256KB flash; In the keil5 target,i see IROM1:start 0x1B000(that means 108KB,it represent S130 softdevice,is that right?),and Size 0x25000(that means 148KB,256-108(softdevice)=148KB,is it represent free space,is that right?) there i have a question,IRAM1:start 0x3440(why it be this,from where can i know?)