Read data sent by smart beacon in nRF DK and send to PC

RE: Read data sent by smart beacon in nRF DK and send to PC

Revo — Tue, 26 Apr 2016 08:54:18 GMT

Sorry for double posting, but i really need help!

RE: Read data sent by smart beacon in nRF DK and send to PC

Revo — Mon, 25 Apr 2016 13:37:41 GMT

Sorry i copied wrong from Matlab, the parity is actually set to "none" so it should be correct; instead i tried enabling the flow control but it doesn't change!

RE: Read data sent by smart beacon in nRF DK and send to PC

Einar Thorsrud — Mon, 25 Apr 2016 13:32:39 GMT

You have several mismatches here:

If I understand you right, you have set parity on the PC side, but your app_uart_comm_params_t indicate that you are not using parity (you have set parity to false)
You have configured hardware flow control on the PC side, but you have set APP_UART_FLOW_CONTROL_DISABLED. Either change the settings on your PC or set APP_UART_FLOW_CONTROL_ENABLED instead.

RE: Read data sent by smart beacon in nRF DK and send to PC

Revo — Mon, 25 Apr 2016 13:23:35 GMT

Well the UART setting are i think the one i select in Matlab, which are the following:

BaudRate =38400; DataBits = 8; Parity= none; StopBits =1; FlowControl = hardware; InputBufferSize=100); Terminator = 'CR/LF;

On my code on the DK, i used these parameters:

static void uart_init(void)
{
    uint32_t                     err_code;
    const app_uart_comm_params_t comm_params =
    {
        RX_PIN_NUMBER,
        TX_PIN_NUMBER,
        RTS_PIN_NUMBER,
        CTS_PIN_NUMBER,
        APP_UART_FLOW_CONTROL_ENABLED,
        false,
       UART_BAUDRATE_BAUDRATE_Baud38400
    };

    APP_UART_FIFO_INIT( &comm_params,
                       UART_RX_BUF_SIZE,
                       UART_TX_BUF_SIZE,
                       uart_event_handle,
                      APP_IRQ_PRIORITY_LOW,
                       err_code);
    APP_ERROR_CHECK(err_code);
}
/**@snippet [UART Initialization] */

where the values are the one declared at the top of my code!

RE: Read data sent by smart beacon in nRF DK and send to PC

Einar Thorsrud — Mon, 25 Apr 2016 13:14:33 GMT

Yes, exactly. Therefore I wander if you have double checked that you have the same UART setting on both the nRF and your PC?

RE: Read data sent by smart beacon in nRF DK and send to PC

Revo — Mon, 25 Apr 2016 13:10:59 GMT

Well as i said i probably did what you are saying, i sent app_uart_put(1) which is a fixed number, on the case of notification event, is this what you propose? As is wrote, doing this i get the random numbers that i posted!

RE: Read data sent by smart beacon in nRF DK and send to PC

Einar Thorsrud — Mon, 25 Apr 2016 13:04:31 GMT

Have you tested that your UART communication actually work properly, for example by sending a fixed string? If you get corrupt data over UART, it may be that there is a mismatch in the UART settings on your PC and on the nRF (different baud rate, ...).