Using ble_app_uart and ble_hid together ?

[andrew42]

Hi,

I have developed a device with a smartphone controller. I can transmit and receive commands to the device using the ble_app_uart instance.
I want to send data from device to smartphone to trigger smartphone camera. I sent the volume up command using the ble_hid example and successfully triggered the smartphone camera.

As for the problem,

I added the ble_hid instance on ble_app_uart but the device crashes when it wakes up. Service init and advertisement start code has lots of common code.
I don't know how to merge these 2 instance. Is it possible ? Also i did'nd find any merged instance.

[Jared]

Hi there,

Have you tried using the debugger and checked where it crashes? Does the program return any specific errors?

regards

Jared 

[andrew42]

When hids_init func initialize, NRF52 being crash.

I checked  err_code = ble_hids_init(&m_hids, &hids_init_obj); in hids_init, err_code returning NRF_SUCCESS.

[Jared]

Hi,

Are you using SES as IDE? Can you build the project in debug mode and flash it to the board, and then check what the log output says? It should detail where in the application the program crashes.

regards

Jared 

[andrew42]

Hi Jared,

I dont' know the SES. I am using QT as IDE on Linux thats why i don't know how to i can debug on my system. Can you show me the way ? 

[Jared]

Hi,

We recommend using SEGGER Embedded Studio when working with nRF5SDK. You can download it for Linux here. We also have a basic tutorial for debugging with SES here.

regards

Jared