ble app uart problems

[serzh]

hi i have a problem with ble app uart.i used nRF5_SDK_12.3.0_d7731ad and Eclipse Mars 2. I had build main.c in hex ble_app_uart\pca10040\s132 . And after that a maked mergehex with s132_nrf52_3.0.0_softdevice.hex.i flashed into my BLE nitrogen. i can conect to BLE. But any messages what i sended on Bluetooth from my Phone Do not return in my phone but function can do it.And more when i put in condition code for togle blinky i had not any bkinky when i sended mesage from my phone

void uart_event_handle(app_uart_evt_t * p_event)
{
    static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
    static uint8_t index = 0;
    uint32_t       err_code;

    switch (p_event->evt_type)
    {
        case APP_UART_DATA_READY:
            UNUSED_VARIABLE(app_uart_get(&data_array[index]));
            index++;

            if ((data_array[index - 1] == 'q') || (index >= (BLE_NUS_MAX_DATA_LEN)))
            {
                //send mesage as resived
                err_code = ble_nus_string_send(&m_nus, data_array, index);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }

                index = 0;
            }
            break;

        case APP_UART_COMMUNICATION_ERROR:
            APP_ERROR_HANDLER(p_event->data.error_communication);
            break;

        case APP_UART_FIFO_ERROR:
            APP_ERROR_HANDLER(p_event->data.error_code);
            break;

        default:
            break;
    }
}

[Jørgen Holmefjord]

I'm not sure I understand your issue. The message you send from the phone is supposed to be transmitted to UART terminal, not echoed back to the phone. Have you edited the example in any way? The default example does check for the newline char '\n'. while your code looks like it looks for the char 'q'.

[serzh]

this code send msg by Phone err_code = ble_nus_string_send(&m_nus, data_array, index);

and i chek i have conection in COM Port Toolkit.And i havent any msg

[Jørgen Holmefjord]

From the code you posted above, the data will only be sent when the char 'q' is found in the received string from UART, or the buffer is filled. Do you send a 'q' char in the string you send from the terminal?

[serzh]

yes i change it spechial for it because in nrf Uart on my Phone i cant sent '\n'

[serzh]

When i modified main

int main(void)
{
    uint32_t err_code;
    uint8_t dat_array[5]={'a','a','a','a','a'};
    bool erase_bonds;
    // Initialize.
    APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
    uart_init();

    buttons_leds_init(&erase_bonds);
    ble_stack_init();
    gap_params_init();
    services_init();
    advertising_init();
    conn_params_init();

    printf("\r\nUART Start!\r\n");
    err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
    APP_ERROR_CHECK(err_code);
   	nrf_gpio_cfg_output(29);
    // Enter main loop.
    for (;;)
    {
    	ble_nus_string_send(&m_nus, dat_array, 5);
    	nrf_delay_ms(50);
        power_manage();
    }
}

i had mesage on my phone