RE: Questions about uart fifo and rtt debug

Laerte Junior — Wed, 17 Apr 2024 14:55:51 GMT

Problem solved I modified my nus_data_handler funcion and comment the uart_init

here my nus_data_handler funcion modified:

/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
    uint8_t parametros_recebidos[MAX_LENGTH];
    if (p_evt->type == BLE_NUS_EVT_RX_DATA)
    {
        uint32_t err_code;

        /*NRF_LOG_DEBUG*/NRF_LOG_INFO("Received data from BLE NUS. Writing data on UART.");
        NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);

        for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
        {
            parametros_recebidos[i] = p_evt->params.rx_data.p_data[i];
            NRF_LOG_INFO("Valor recebido na ble_uart: %x ", p_evt->params.rx_data.p_data[i]);   
            //do
            //{
            //    err_code = app_uart_put(p_evt->params.rx_data.p_data[i]); //p_data recebe o valor na uart
            //    //NRF_LOG_INFO("Valor recebido na ble_uart: %x ", p_evt->params.rx_data.p_data[i]);                 
            //    if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
            //    {
            //        NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code);
            //        APP_ERROR_CHECK(err_code);
            //    }
            //} while (err_code == NRF_ERROR_BUSY);
        }
        //if (p_evt->params.rx_data.p_data[p_evt->params.rx_data.length - 1] == '\r')
        //{
        //    while (app_uart_put('\n') == NRF_ERROR_BUSY);
        //}
    }
}

RE: Questions about uart fifo and rtt debug

Laerte Junior — Wed, 17 Apr 2024 14:23:57 GMT

I change my sdk_config file as follow:

#define NRF_LOG_BACKEND_RTT_ENABLED 0

and

#define NRF_LOG_BACKEND_UART_ENABLED 1

inside the nrf_log_backend_uart_init function in the nrf_log_backend_uart.c, the uart_init is tried inicicialized again and the error_code is returned as 8.

static void uart_init(bool async_mode)
{
    nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
    config.pseltxd  = NRF_LOG_BACKEND_UART_TX_PIN;
    config.pselrxd  = NRF_UART_PSEL_DISCONNECTED;
    config.pselcts  = NRF_UART_PSEL_DISCONNECTED;
    config.pselrts  = NRF_UART_PSEL_DISCONNECTED;
    config.baudrate = (nrf_uart_baudrate_t)NRF_LOG_BACKEND_UART_BAUDRATE;
    ret_code_t err_code = nrf_drv_uart_init(&m_uart, &config, async_mode ? uart_evt_handler : NULL);
    APP_ERROR_CHECK(err_code);

    m_async_mode = async_mode;
}