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?)
0x3340 comes from the requirement of the softdevice based on the configuration of number of central link, peripheral link, of bandwidth. The configuration is done with softdevice_enable_get_default_config() inside ble_stack_init().
If you have a look at softdevice_enable() you can see how we get that 0x3440, by print out the return value app_ram_base from sd_ble_enable() call.
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
It's calculated inside the softdevice, you have to call sd_ble_enable() to get the correct value back. We don't have a tool or something to do calculation offline.
