Data displaying incomplete in termite from nrf52840 and nrftoolbox uart using ble_uart example

[ox00]

  int i;
                            char buf[42];

                        for (i = 0; i < 20; i++) {
                      snprintf(buf,42, "A%dBBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX", i);         
                       // puts string into buffer
                       printf("%s\n", buf); 
                       // outputs so you can see it

                          
                           uint16_t length2 = sizeof(buf);

                           err_code = ble_nus_data_send(&m_nus,buf, &length2, m_conn_handle);


                       }

A%dBBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX = 40bytes

1) In Termite:

Data is complete and in sequence when until 6 only. 

A0BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A1BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A2BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A3BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A4BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A5BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX
A6BBCCDDEEA

Data only displaying until A6BBCCDDEEA even though I tried to loop until 20. Why ??

2) In uart apps Android, I managed to receive the data incomplete like above but until 6 only. When it is above 6, the sequence is not in order and some data not received . Last data received in apps is A19BBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX . How can I get the data loop for 19 if termite is not displaying it ?

[Heidi-Irene Harvey Sollie]

Hi!

Which SDK version are you using? And where in the ble_app_uart example are you adding your code?

I will try to recreate your error at my office to see what the problem is. 

Best regards,

Heidi

[ox00]

Hi Heidi,

I am using SDK_16.0.0_98a08e2. In the ble_uar_app i put the code in the uart_event_handle. This is the example code of the function

   

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;
   uint16_t length = (uint16_t)index;


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

            if ((data_array[index - 1] == '\n') ||
                (data_array[index - 1] == '\r') ||
                (index >= m_ble_nus_max_data_len))
            {
                if (index > 1)
                {

                    NRF_LOG_DEBUG("Ready to send data over BLE NUS");
                    NRF_LOG_HEXDUMP_DEBUG(data_array, index);

                    do
                    {
                     
                        err_code = ble_nus_data_send(&m_nus, data_array, &length, m_conn_handle);
                        if ((err_code != NRF_ERROR_INVALID_STATE) &&
                            (err_code != NRF_ERROR_RESOURCES) &&
                            (err_code != NRF_ERROR_NOT_FOUND))
                        {
                            APP_ERROR_CHECK(err_code);
                        }
                    } while (err_code == NRF_ERROR_RESOURCES);
      

                      }
                      
                      //null
                if(index==1){

                    NRF_LOG_DEBUG("Ready to send data over BLE NUS");
                    NRF_LOG_HEXDUMP_DEBUG(data_array, index);

                    do
                    {
                       
                          int i;
                     
                       char buf[42];
                        for (i = 0; i < 3; i++) {
                      snprintf(buf,42, "A%dBBCCDDEEAABBCCDDEEAABBCCDDEEAABBCCDDXX", i);         
                      // puts string into buffer
                       printf("%s\n", buf); // outputs so you can see it

                                                      
                           uint16_t length2 = sizeof(buf);
      
                           err_code = ble_nus_data_send(&m_nus,buf, &length2, m_conn_handle);
                          


                       }
                      
                        if ((err_code != NRF_ERROR_INVALID_STATE) &&
                            (err_code != NRF_ERROR_RESOURCES) &&
                            (err_code != NRF_ERROR_NOT_FOUND))
                        {
                            APP_ERROR_CHECK(err_code);
                        }
                    } while (err_code == NRF_ERROR_RESOURCES);



                             }

              

                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;
    }
}

[Heidi-Irene Harvey Sollie]

Unfortunately, I can't reproduce your issue. Could you just .zip your whole working directory and send it?

[ox00]

This is the link of the project in gdrive. You can test it. The sequence is not in order .drive.google.com/.../view