DFU bootloader

RE: DFU bootloader

FormerMember — Thu, 02 Mar 2017 14:40:44 GMT

ok , thank you friend,now the time is 22:40,it's time to go to sleep in china.thanks for your answer

RE: DFU bootloader

Hung Bui — Thu, 02 Mar 2017 14:25:04 GMT

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.

RE: DFU bootloader

FormerMember — Thu, 02 Mar 2017 14:06:21 GMT

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

RE: DFU bootloader

Hung Bui — Thu, 02 Mar 2017 12:23:54 GMT

Hi Yangying,

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.

RE: DFU bootloader

FormerMember — Wed, 01 Mar 2017 03:38:08 GMT

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?)

RE: DFU bootloader

Ole Bauck — Tue, 28 Feb 2017 11:50:21 GMT

The different versions can be seen here.

RE: DFU bootloader

Ole Bauck — Tue, 28 Feb 2017 11:49:40 GMT

The QFAA version has 16KB of RAM. The ANCS application in SDK 12.2 sets the start address of the application RAM to 0x20003440, which means that you have 0xBC0 = 3008KB left to the application. The application uses over 8KB of RAM (see here for figuring out how much RAM and ROM the application uses). To sum up you need the QFAC version of the chip with 32KB of RAM.

Also if you are working on the 16KB version you should set the size of the RAM such that the start + size ends at 0x20004000 (0x4000 = 16KB), then you will get an error when you compile if the RAM is too small.

RE: DFU bootloader

FormerMember — Tue, 28 Feb 2017 06:46:31 GMT

hello freinds,i try many times, i download ble_app_alert_notification project application,it't ok,i can connect it; i download ble_app_template project application,it't ok,i can connect it; i download ble_app_uart project application,it't ok,i can connect it!!! only this ANCS project,it can't advertise,and i don't know why it could be this

RE: DFU bootloader

FormerMember — Tue, 28 Feb 2017 06:06:42 GMT

and there is a strange phenomenon,i download the uart application, it can run,and then i download the ancs application again,it can't run as before

RE: DFU bootloader

FormerMember — Tue, 28 Feb 2017 06:00:46 GMT

hello friends,i use following test:

the device is nrf51822 QFAA-256KB.

the softdevice is S130(this is in SDK12.2.0 \components\softdevice\s130\hex)

and the application project is ANCS(this is in SDK12.2.0\examples\ble_peripheral\ble_app_ancs_c\pca10028\s130\arm4 )

RE: DFU bootloader

Ole Bauck — Mon, 27 Feb 2017 10:35:41 GMT

Sorry, I assumed nRF52 for some reason. S130 v2.01 should be the correc SoftDevice. Do you erase the chip before you program the SoftDevice?

What hardware are you using (which DK version or chip version if you have custom hardware)?

RE: DFU bootloader

FormerMember — Mon, 27 Feb 2017 10:27:51 GMT

my device is nrf51822,i download S130(this is in SDK12.2.0 \components\softdevice\s130\hex),and then download ANCS application.it can't advertising...

you say s132,then i download the S132,and i can't download ANCS application.

RE: DFU bootloader

FormerMember — Mon, 27 Feb 2017 10:15:23 GMT

i download 130

RE: DFU bootloader

Ole Bauck — Mon, 27 Feb 2017 10:04:31 GMT

Make sure that you have flashed the correct SoftDevice (S132 v3) before you flash the application.

RE: DFU bootloader

FormerMember — Mon, 27 Feb 2017 09:28:22 GMT

ok,with you help, i see , but i try to use SDK12.2.0 ANCS project,upload to nrf51822.it can't start.no advertise.and i debug, it not go in main

RE: DFU bootloader

Ole Bauck — Mon, 27 Feb 2017 08:46:55 GMT

nRF51 works for all SDKs up to 12.2.0, see here. You are correct for nRF52 (see here).

RE: DFU bootloader

FormerMember — Sat, 25 Feb 2017 08:33:50 GMT

thank you very much，i have another question

nrf51822 only can run in SDK10,and lower than SDK10 nrf52832 can only run in SDK11,SDK12,SDK13 is that right?

RE: DFU bootloader

Ole Bauck — Thu, 23 Feb 2017 10:16:20 GMT

You can also download bootloader and SoftDevice by DFU in SDK 9: infocenter.nordicsemi.com/.../examples_ble_dfu.html

RE: DFU bootloader

FormerMember — Thu, 23 Feb 2017 06:46:49 GMT

my mcu is nrf51822,the sdk is 9.0,project is ANCS

RE: DFU bootloader

FormerMember — Thu, 23 Feb 2017 06:46:35 GMT

HELLO friend。

my mcu is nrf51822,the sdk is 9.0,project is ANCS

RE: DFU bootloader

FormerMember — Thu, 23 Feb 2017 05:48:34 GMT

i use SDK9.0 ancs project

RE: DFU bootloader

FormerMember — Thu, 23 Feb 2017 05:42:30 GMT

i open the web，i use SDK9.0, it's also can?

RE: DFU bootloader

FormerMember — Thu, 23 Feb 2017 02:39:21 GMT

thank you i use sdk9.0,ancs project.in last week, i download the application by dfu,i plan to download the bootloader. do you have any advise?

RE: DFU bootloader

Ole Bauck — Tue, 21 Feb 2017 11:10:39 GMT

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

RE: DFU bootloader

mukesh — Tue, 21 Feb 2017 11:06:01 GMT

Yes you can. It is possible to update softdevice and bootloader itself. Which version of of sdk and softdevice are you using? Please check thins link textlink