Porting ble_app_uart into twi_master_with_slave

[JudePinto]

Hi,

I am using the nRF52 with code from SDK 9.2, as well as the S132 softdevice. I basically ported code from the ble_uart_app into the twi_example to send data over bluetooth.

I tried to port the ble_uart functions from the main file, as well as the libraries it used. Once I finished porting the libraries, the code can build just fine, but the UART does not output any printfs. More importantly, the nordic does not begin advertisement.

I included my main function code just in case:

int main(void)
{
	uart_config();
  	twi_init(); 
    printf("\nTWI Sensor Example\r\n");
	//BT
	uint32_t err_code;
    bool erase_bonds;
    uint8_t buffer[BLE_NUS_MAX_DATA_LEN] = {0};
		
    // Initialize.
    APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, false);
    buttons_leds_init(&erase_bonds);
    ble_stack_init();
    gap_params_init();
    services_init();
    advertising_init();
    conn_params_init();
	err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
    APP_ERROR_CHECK(err_code);
	//BT end
}

[JudePinto]

Okay, I took what you said and used a debugger. The code stops working at ble_stack_init(). It does not get to err_code. Also, sorry, here is the full code.

int main(void)
{
	uart_config(); 

	printf("\nTWI Sensor Example\r\n");
	//BT
	uint32_t err_code;
	bool erase_bonds;
	uint8_t buffer[BLE_NUS_MAX_DATA_LEN] = {0};
	twi_init(); //not BT
	printf("TWI");
	MC3610 MC; //not BT
	MC.start(); //not BT

	// Initialize.
	APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, false);
	buttons_leds_init(&erase_bonds);
	ble_stack_init();
	gap_params_init();
	services_init();
	advertising_init();
	conn_params_init();
	err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
	APP_ERROR_CHECK(err_code);
	//BT end

	#ifdef TEST_MODE //TEST_MODE must be defined in the options for IDE
	jazz_unit_test_mcube();
	#endif

	while(1) {
		mc3610_acc_t rawData = MC.readRawAccel();
		printf("%*.4f,%*.4f,%*.4f\r\n",6,rawData.XAxis_g,6,rawData.YAxis_g,6,rawData.ZAxis_g); 
		sprintf((char*)buffer,"%.4f,%.4f,%.4f\r\n", rawData.XAxis_g, rawData.YAxis_g, rawData.ZAxis_g);
		
		if(m_conn_handle != BLE_CONN_HANDLE_INVALID)
		{
			err_code = ble_nus_string_send(&m_nus, buffer, sizeof(buffer));
			if (err_code != NRF_ERROR_INVALID_STATE)
			{
				APP_ERROR_CHECK(err_code);
			}
		}

		power_manage(); //puts it in sleep mode. can be woken with interrupt

		nrf_delay_ms(10);

	}
}