RTC Configuration

[Jairo]

Hi, i was working with an application using the RTC module, but i'm getting troubles with it. I based my code on the rtc example but apparently the System Clock is not working, i make consults to the time struct with an event, and then print it to terminal, but always display 00d 00hrs 00m 00s, the initialization code is posted below. I begin to have this problem when i implemented the ADC and another task that is checking for several alarms setted (this task has a _time_delay of 60s).

//__________________RTC_______________
    _rtc_init(RTC_INIT_FLAG_CLEAR | RTC_INIT_FLAG_ENABLE);
 _rtc_get_time (&time_rtc);
 _rtc_time_from_mqx_time (&time_mqx, &time_rtc);
 _rtc_time_to_mqx_time (&time_rtc, &time_mqx);
    printf ("MQX: %d s, %d ms\n", time_mqx.SECONDS, time_mqx.MILLISECONDS);
 printf ("    (%d d, %d hr, %d m, %d s)\n", time_rtc.days, time_rtc.hours, time_rtc.minutes, time_rtc.seconds);

 In the function for set the clock to the actual time:

printf("Tiempo guardado: %d:%d:00", hora,min);
 time_rtc.hours=hora;
 time_rtc.minutes=min;
 time_rtc.seconds=0;
 _rtc_set_time(&time_rtc);
 _rtc_get_time (&time_rtc);  
 printf ("MQX: %d s, %d ms\n", time_mqx.SECONDS, time_mqx.MILLISECONDS);
    printf ("    (%d d, %d hr, %d m, %d s)\n", time_rtc.days, time_rtc.hours, time_rtc.minutes,time_rtc.seconds);
 sendCMD(CLR_SCR);
 sendCMD(HOME);
    sendString(str2);

 The struct has the configured parameters but it doesn't change.

This last code fragment is in the event part, it is suppossed that this will show the time. Worked for me before including the ADC task.

    _rtc_get_time (&time_rtc);  
 printf ("MQX: %d s, %d ms\n", time_mqx.SECONDS, time_mqx.MILLISECONDS);
     printf ("    (%d d, %d hr, %d m, %d s)\n", time_rtc.days, time_rtc.hours, time_rtc.minutes, time_rtc.seconds);

 The MQX time never changes its value, always is zero for seconds and milliseconds.

 it's necesary som kind of trigger or refresh function for the time struct?

Thanks in advance.

 

[PetrM · Accepted solution]

Hello,

it seems to me that in your event RTC code you don't translate RTC time to MQX time.

That's why it's always zero.

Try this:

_rtc_get_time (&time_rtc);  

_rtc_time_to_mqx_time (&time_rtc, &time_mqx);
printf ("MQX: %d s, %d ms\n", time_mqx.SECONDS, time_mqx.MILLISECONDS);
printf ("    (%d d, %d hr, %d m, %d s)\n", time_rtc.days, time_rtc.hours, time_rtc.minutes, time_rtc.seconds);

Or if you want to see current MQX time, use this function instead: 

_time_get (&time_mqx); 

Regards,

PetrM

Message Edited by PetrM on 2009-12-07 03:34 PM

[Jairo]

Hi. i'm currently using the M52259DEMO board, as far as i know it doesn't need some jumpers for the RTC, correct me if i'm wrong.

Best Regards

[JaimeR]

What hardware are you using?, any of the evaluation boards?

Do you have the Jumpers correctly selected to power up the RTC module?

Message Edited by Jaime R on 2009-12-04 11:07 PM