SNTPtest.c File Reference

Sample Application Program for obtaining the time from internet. More...

#include <BoardSupport/inc/stdtypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <inttypes.h>
#include <time.h>
#include <string.h>
#include <Libs/NETlib/net.h>
#include <BoardSupport/inc/BoardSpecific.h>
#include <Common/Common.h>
#include <Common/uartio.h>
#include <Common/timer.h>
#include <Common/CPrintf.h>
#include <BoardSupport/config/netconfig.c>
#include "SNTP.h"

Macros
#define	MAX_PING_DATA   100
#define	UTC_PRINTF   " Current UTC time: "VT100_BLUE"%s\r"VT100_DEFAULT

Functions
int	main (void)

Variables
char *	program_name = "SNTP"
char *	aNTPServerList []

Detailed Description

                          _         _             _
                       __| |    ___(_) ____ _ __ | |_
                      / _` |   / __| |/ _` | '_ \| __|
                     | (_| | _ \__ \ | (_| | | | | |_
                      \__,_|(_) ___/_|\__, |_| |_|\__|
                     Signalprocessing |___/ Technology

Author

D.SignT GmbH & Co. KG, Claus Hermbusche

Date

2019-06-03

Macro Definition Documentation

#define MAX_PING_DATA   100

#define UTC_PRINTF   " Current UTC time: "VT100_BLUE"%s\r"VT100_DEFAULT

Function Documentation

int main

(

void

)

{
    /***************************************************************************
     locals
    ***************************************************************************/
    int main_loop = 1;                /* main loop switch, set to 0 to exit   */
    struct tm *local_time;            /* structure to hold time and date      */
    timeval CurrentTime;

    /***************************************************************************
      initialize application (e.g. timer clocks, PLL settings, EMIF etc.)
       (ref. \Common\Common.c)
    ***************************************************************************/
    AppInit (GET_CLOCK);

    /***************************************************************************
      select output device for CPrintf  (ref. \Common\cprintf.c)
      possible settings:
        CPRINTF_UART_OUTPUT                       -> output to UART
        CPRINTF_CCS_OUTPUT                        -> output to CCS
        CPRINTF_UART_OUTPUT | CPRINTF_CCS_OUTPUT  -> output to UART and CCS
    ***************************************************************************/
    CPrintf_select_output (CPRINTF_DEFAULT_OUTPUT);  /* default outputs       */

    /***************************************************************************
     print a start up message
    ***************************************************************************/
    START_UP_MESSAGE (BLANK_REV NETLIB_REV);

    /**************************************************************************/
    // CPrintfProgress (" Heap check ");
    // at least 0x2000 bytes required for this app
    /**************************************************************************/
    ASSERT_HEAP (initial_heap_size, 0x2000);
    // CPrintfProgressSuccess();

    /**************************************************************************/
     CPrintfProgress (" Setup system time ");
     // 1 second resolution
    /**************************************************************************/
    SetupSystemTime ( SYSTEM_TIMER_INT, SYSTEM_TIMER, RES_MSECONDS);
    CPrintfProgressSuccess();
    CPrintf ("   *** timer %d mapped to CPU int %d ***\r\n",
             SystemTimerDev, SYSTEM_TIMER_INT);

    /**************************************************************************/
     CPrintfProgress (" Enable interrupts ");
    /**************************************************************************/
    BoardEnableInterrupts();
    CPrintfProgressSuccess();

    /**************************************************************************/
     CPrintfProgress (" Start system timer ");
    /**************************************************************************/
    StartSystemTimer ();
    CPrintfProgressSuccess();
    CPrintf ("   *** timer %d running at %"PRId32" Hz ***\r\n", SystemTimerDev, RES_SECONDS/GetSystemTimerRes());


    /**************************************************************************/
     CPrintfProgress (" Initialize network ");
    /**************************************************************************/
    InitializeNetwork ( 64); // 64 bytes for ping
    // net_set_gateway ("192.168.168.1",
                     // "255.255.255.0");
    CPrintfProgressSuccess();

    LED_on (0);

    /***************************************************************************
      main program loop: set main_loop to 0 to exit loop
    ***************************************************************************/
    CPuts ("\r\n Entering main loop ...\r\n");
    while ( main_loop )
    {
        /***********************************************************************
         process net_isq()
        ***********************************************************************/
        net_isq ();

        /***********************************************************************
         monitor link status
        ***********************************************************************/
        monitor_link_status (CPrintf);

        ntp_client (aNTPServerList, 3);

        /***********************************************************************
         print time each second
        ***********************************************************************/
        if ( tv_elapsed (&CurrentTime, UINT32_C(1), UINT32_C(0), TRUE) )
        {
            LED_toggle(0);
            LED_toggle(1);

            /*******************************************************************
             print time
            *******************************************************************/
            local_time = localtime ((const time_t *)&RecentEpoch);
            CPrintf (UTC_PRINTF, asctime (local_time));
        }
    }

    /***************************************************************************
      exit program, shut down peripherals
    ***************************************************************************/
    return(0);
}

Variable Documentation

char* program_name = "SNTP"

char* aNTPServerList[]

Initial value:

= {
   
   
   "europe.pool.ntp.org",
   "ptbtime1.ptb.de",
   "ptbtime2.ptb.de",
   "ntp0.fau.de",
   "ntp1.sul",
   NULL
}

Examples:

SNTPTest.c.