Creating a working BLE NUS (Nordic UART Service) example with FreeRTOS

[SerFabio89]

Good afternoon everyone,

I'm trying to make a working application for the BLE NUS example but with the support of FreeRTOS that is MANDATORY. I work with KEIL. I started with ble_hrs_demo_freertos, added the NUS related files, changed the configuration within sdk_config.h. As soon as I invoke uart_init() it crashes with a fatal error and reboots, if I skip the initialization of the UART module, it crashes anyway into advertisement_init(), the in services_init().

Does anyway have a ready to test/modify/study application for BLE NUS with FreeRTOS?

Bests,

Fabio

[WestCoastDaz]

In my experience with FreeRTOS and Nordic there are several things can cause a reboot.  It's a good idea to use the debugger and put a breakpoint on the app_error_handler() function. It's hard to determine your issue without more information.

Some quick questions:

1. Can you confirm that you were able to run the ble_hrs_demo_freetos? 
2. Are you running on a DK or a custom board?
3. Are you able to share your main.c and sdk_config.h?

Thanks

[SerFabio89]

I solved simply starting from the example "nRF5_SDK_16.0.0_98a08e2\examples\peripheral\usbd_ble_uart_freertos", it already has the NUS working in conjuction with FreeRTOS.

Thanks anyway for the fast reply!

[Lazar]

Did you manage to remove the USB and send/receive massages over PC? MAy you share your working core main.c and sdk_config.h? Thank you!