RE: How to add Bluetooth in an empty project?

Venus_Bilandi — Fri, 04 Jun 2021 08:08:17 GMT

I have successfully added Bluetooth in my project .

Here is the step by step guide if any one needs it.

Create a folder named nRF_SoftDevices and add these files

nrf_sdh.c
nrf_sdh_ble.c
nrf_sdh_soc.c

Create a folder named nRF_BLE and add these files

ble_advdata.c
ble_advertising.c
ble_conn_params.c
ble_conn_state.c
ble_link_ctx_manager.c
ble_srv_common.c
nrf_ble_gatt.c
nrf_ble_qwr.c

Add following files to nrf_Libraries

nrf_pwr_mgmt.c
nrf_section_iter.c
nrf_atfifo.c
nrf_atflags.c
nrf_sortlist.c
app_timer2.c
drv_rtc.c

In the end

Create a folder named nRF_BLE_Services and add the file related to services you need. I need “nus” service so I have added files required for that

ble_nus.c

Go to Solution ‘project name’ right click, go to “options” go to “Code” go to “Preprocessor” go to “User Include Directories” and add the paths to the following folders. These are the path of the folders containing “.h” files required to clear the build errors.

For me paths were…

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\softdevice\s140\headers

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\softdevice\s140\headers\nrf52

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\drivers_nrf\nrf_soc_nosd

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\timer

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\sortlist

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\mutex

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\atomic_fifo

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\common

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\ble_advertising

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\nrf_ble_gatt

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\nrf_ble_qwr

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\ble_services\ble_nus

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\ble\ble_link_ctx_manager

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\pwr_mgmt

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\libraries\sortlist

E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\components\softdevice\common E:\nRF5_SDK_17.0.0_9d13099\nRF5_SDK_17.0.0_9d13099\examples\peripheral\Lynkgrid_base_ble\nRF_SoftDevice

Go to Project‘project name’, right click, go to “options” select “Common” go to “Code” go to “Preprocessor” go to “Preprocessor Definitions” and add the following defines

BOARD_PCA10056

BSP_DEFINES_ONLY

CONFIG_GPIO_AS_PINRESET

FLOAT_ABI_HARD

INITIALIZE_USER_SECTIONS

NRF52840_XXAA

NO_VTOR_CONFIG

NRF_SD_BLE_API_VERSION=7

S140

SOFTDEVICE_PRESENT

APP_TIMER_V2

APP_TIMER_V2_RTC1_ENABLED

Go to Project‘project name’, right click, go to “options” select “Common” go to “Code” go to “Linker” go to “Section Placement Macros” and set the flash and ram values as given

FLASH_PH_START=0x0

FLASH_PH_SIZE=0x100000

RAM_PH_START=0x20000000

RAM_PH_SIZE=0x40000

FLASH_START=0x27000

FLASH_SIZE=0xd9000

RAM_START=0x20002ae8

RAM_SIZE=0x3d518

Go to Project‘project name’, right click, go to “options” select “Common” go to “Debug” go to “Loader” go to “Additional Load File[0]” and add the path to softdevice.hex

For me it was…

E:/nRF5_SDK_17.0.0_9d13099/nRF5_SDK_17.0.0_9d13099/components/softdevice/s140/hex/s140_nrf52_7.0.1_softdevice.hex

If you face an error while building the code that look like this Error : undefined reference to `__start_sdh_req_observers'

Replace the “flash_placement.xml” file of your project with the flash_placement.xml file of the ble_app_template project.

Merger the sdk_config.h file of your project with the sdk_config.h of ble_app_template project. You may need to do some changes in your sdk_config.h file according to requirement. I have made changes related to the “nus” service I need in my project.

Here are the links that were very helpful to me in solving this problem.

Nordic Semiconductor Infocenter

(+) Enable the use of RTC0, RTC1 or RTC2 in app_timer2 - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Error Output/spis_pca10056 Debug/Obj/nrf_sdh.o:(.rodata.sdh_req_observers+0x0): undefined reference to `__start_sdh_req_observers' - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

NordicPlayground/nRF5x-custom-ble-service-tutorial (github.com)

RE: How to add Bluetooth in an empty project?

Jared — Tue, 01 Jun 2021 08:54:43 GMT

nRFgo is deprecated, use nRF Connect Programmer app instead.

RE: How to add Bluetooth in an empty project?

Venus_Bilandi — Mon, 31 May 2021 13:52:43 GMT

I thought so and did the same and already have added the files but I used the example "ble_app_uart".

But I think it can't find softdevice.

Because when I run code in debug mode as of in screenshot it can't enable softdevice and goes into exception handler.

I found on the forum that first I have to upload a softdevice on the controller. which I understand too.

and I am using nRFgo for that but it says.

any way around this?

RE: How to add Bluetooth in an empty project?

Jared — Mon, 31 May 2021 13:33:06 GMT

[quote user="Venus_Bilandi"]and at this stage it will be faster for me to add Bluetooth in it rather than vice versa.[/quote]

Not so sure about that 🙂

[quote user="Venus_Bilandi"]Can you guide me in how to do so[/quote]

For starters, you could compare your project with for example the ble_blinky example and add everything that is related to the softdevice and is missing from your project. The diff function in VS Code would help you alot with this.

Good luck

Jared

RE: How to add Bluetooth in an empty project?

Venus_Bilandi — Mon, 31 May 2021 13:07:24 GMT

Yes, I do understand. I also think it is a better way. But I am at the completion of my project and I need Bluetooth support in my project and at this stage it will be faster for me to add Bluetooth in it rather than vice versa.

So, Can you guide me in how to do so?

RE: How to add Bluetooth in an empty project?

Jared — Mon, 31 May 2021 09:23:07 GMT

Hi,

The general recommendation is to start from an SDK example. Several libraries, drivers and SDK configurations needs to included for the Softdevice to work properly. It's therefore better to start from an SDK example, for example the ble_template project.

best regards
Jared