Connectable beacon

[Wim]

In the nRF5 SDK v15.0.0 there is an example for beacon. (in my case ble_app_beacon_pca10040_s132)

This example works fine and acts as a non-connectable unidirected beacon.

But I am looking for a connectable beacon. (Acts as a beacon, but can also be connected to retrieve other data).

Is there an example software available?

[Mttrinh]

Hi,

We don't have any examples that does exactly this. You can change the advertising type to connectable in advertising init if you want to allow connections. 

[Wim]

Hi Mttrinh,

I changed the line

   m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED;

to:

   m_adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;

But that is not sufficient, because it gives the error (through the USB-commport):

<info> app: Beacon example started.

<error> app: Fatal error

<warning> app: System reset

And it does not send any BLE message.

To my impression, there is a lot more to change. But I hope somebody else already invented this wheel.

[Mttrinh]

You also have to change your NRF_SDH_BLE_PERIPHERAL_LINK_COUNT to 1 and your RAM accordingly. Change your RAM_START to 0x20001D88 and RAM_SIZE to 0xE278.

[Wim]

I changed:

In sdk_config.h

   #define NRF_SDH_BLE_PERIPHERAL_LINK_COUNT 1  //was 0

In nrf_sdh_ble.c:

   #define RAM_START       0x20001D88  //was 0x20000000

However I could not find RAM_SIZE

And I get the error messages:

<warning> nrf_sdh_ble: Insufficient RAM allocated for the SoftDevice.
<warning> nrf_sdh_ble: Change the RAM start location from 0x200018A8 to 0x20001D88.
<warning> nrf_sdh_ble: Maximum RAM size for application is 0x10000.
<error> nrf_sdh_ble: sd_ble_enable() returned NRF_ERROR_NO_MEM.
<error> app: Fatal error
<warning> app: System reset

How can I solve thie?

[Mttrinh]

Which IDE are you using?

[Wim]

SEGGER Embedded Studio for ARM Release 3.34a Windows x86