RE: SDK11 S130 BLE Disconnect

Kenneth — Mon, 06 May 2019 18:34:04 GMT

Likely one of the function calls return an err_code, this will trigger the assert_nrf_callback() -handler to execute, it may be setup to do a system reset(). You should check the assert_nrf_callback() for line number and error code.

RE: SDK11 S130 BLE Disconnect

yzfy_12345 — Sun, 05 May 2019 03:37:51 GMT

Thank you for your apply. Now, I have a new problem.

My MCU: nRF51822-QFAA

I Select the SDK9 as my BLE slave: nRF51_SDK_9.0.0_2e23562\examples\ble_peripheral\ble_app_template\pca10028\s110

Phenomenon of problem：

When my BLE Slave device connect success, My BLE Master will send data to slave.

When receive the data, My salve device will active disconnect。Call this function: "My_BLE_Disconnect_Fun()"

//====================================================

void My_BLE_Disconnect_Fun(void)
{
uint32_t err_code;

if(My_Service.conn_handle == BLE_CONN_HANDLE_INVALID)
{ return; }

err_code = sd_ble_gap_disconnect(My_Service.conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}

//====================================================

int main(void)
{
uint32_t err_code;
bool erase_bonds;

// Initialize.
timers_init();
buttons_leds_init(&erase_bonds);
ble_stack_init();
device_manager_init(erase_bonds);
gap_params_init();
advertising_init();
services_init();
conn_params_init();

// Start execution.
application_timers_start();
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);

// Enter main loop.
for (;;)
{

if(BLE_Rx_OK)
{
BLE_Rx_OK = false;
if(OOL_Up_Fg == false)
{
BLE_Rx_Function();
}
}

power_manage();
}
}

//=============================================

I test discovery:

When I call the function "My_BLE_Disconnect_Fun()"， Sometimes it restarts and sometimes the normal.

Why ?? what caused the restart???

Thank you very much!

Best regards,
Dongxiaohuang

RE: SDK11 S130 BLE Disconnect

Kenneth — Tue, 23 Apr 2019 11:52:39 GMT

Hi,

It may look like you are experiencing an assert on the master here, by default the application is setup to run NVIC_SystemReset() on assert, however if you set DEBUG then you can set a breakpoint in app_error_fault_handler() or app_error_save_and_stop() to find identify error code, line number and file name causing the assert.

Best regards,
Kenneth