How can i parse Data before sending to BLE UART sample code

[Deepak Kumar]

hi. i want to parse the data before sending to BLE UART. i am fetching data from RX/TX pin. and now i want to do some modification in data before sending it.

this block of code is responsible for handling data coming from RX/TX PIN

static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
		showData(p_data,length);
		//parseIncoming(buf, bytesRead);
    for (uint32_t i = 0; i < length; i++)
    {
        while(app_uart_put(p_data[i]) != NRF_SUCCESS);
    }
    while(app_uart_put('\n') != NRF_SUCCESS);
		
		
}

but how can i see data prensent in p_data array. i used RTT viewer to see data. but nothing is comming and also want to modify my data coming from RX/TX before sending.

thanks!!

[Javier]

Good morning.

I think you are wrong, "nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)" function sends data receive by BLE (mobile device for example) to UART, and "uart_event_handle(app_uart_evt_t * p_event)", takes data that you write by uart (hyperterminal, putty) and send it to mobile device.