Hardfault after BLE connection, in BLE with ADC app

[Alaa]

Hi,

I'm using SDK 14. I started from ble_uart application, and to use ADC as well I ported ble_app_uart__saadc_timer_driven__scan_mode (SDK 13) to SDK 14 (made changes in main.c, sdk_config.h, Makefile). It compiles and runs fine.

Here's an example from the run:

Now I search for the device by a smartphone through BLE and I find it and connect successfully.

The problem is that once I connect to it, the device falls into a hard fault:

Any help is appreciated...

Thank you!

[Alaa]

As I said, it gave NRF_ERROR_INVALID_PARAM, and not TX buffer full

[Jørgen Holmefjord]

ble_nus_string_send will return NRF_ERROR_INVALID_PARAM if parameter p_length is greater than BLE_NUS_MAX_DATA_LEN, or if an invalid parameter is passed to sd_ble_gatts_hvx. Please check which length you are passing to the function.