topic Re: _time_ticks_to_xdate in MQX Software Solutions

_time_ticks_to_xdate

madifazio — Thu, 29 Oct 2020 09:45:48 GMT

Hi,

I have some troubles with _time_ticks_to_xdate function.

The following code can be used as demostration

MQX_TICK_STRUCT stTime;MQX_XDATE_STRUCT xdate0;MQX_XDATE_STRUCT xdate1; xdate0.YEAR = 1970;xdate0.MONTH = 1;xdate0.MDAY = 1;xdate0.HOUR = 0;xdate0.MIN = 0;xdate0.SEC = 0;xdate0.MSEC = 1;xdate0.USEC = 800;xdate0.NSEC = 0;xdate0.PSEC = 0; _time_xdate_to_ticks(&xdate0,&stTime);_time_ticks_to_xdate(&stTime,&xdate1);

After the conversion, xdate0 is diferent from xdate1

I see that USEC > 500 (also NSEC > 500) result in adding one to the milliseconds and random numbers in the minors fields (nsec, psec)

Here is the numeric result of the code above

Resultados :
Campo Xdate0 Xdate1
Año: 1970 1970
Mes: 1 1
Dia: 1 1
Hor: 0 0
Min: 0 0
Seg: 0 0
msg: 1 2
usg: 800 6784
nsg: 0 35336
psg: 0 18052

Any help would be apreciated

I suspect same isue in psp functions

_psp_ticks_to_milliseconds,

_psp_ticks_to_microseconds,

_psp_ticks_to_nanoseconds and

_psp_ticks_to_picoseconds

Regards

Re: _time_ticks_to_xdate

c0170 — Wed, 28 Dec 2011 21:51:02 GMT

Hi madifazio,

i have not tried to run the program you included yet because i do not have MQX 3.6 intstalled.

I remember there was a bug in those functions even in MQX 3.7 and they should be fixed in MQX 3.8 .

Regards,

MartinK

Re: _time_ticks_to_xdate

madifazio — Thu, 29 Oct 2020 09:45:50 GMT

Hi Martin

Thanks for reply

I wrap the _time_ticks_to_xdate mqx function with this one:

/*FUNCTION*------------------------------------------------------------** Function Name   : _time_ticks_to_xdateQueAnda* Returned Value  : boolean* Comments        : converts ticks into a date and time from*                   Jan.1 1970* Funciona teniendo en cuenta que hay 10000 HT por ms*END*------------------------------------------------------------------*/boolean _time_ticks_to_xdateQueAnda   (      /*  [IN]  pointer to tick structure  */      MQX_TICK_STRUCT_PTR  tick_ptr,      /*  [OUT]  pointer to a xdate structure  */      MQX_XDATE_STRUCT_PTR xdate_ptr   ){ /* Body */ boolean res; uint_32 temp; // dejar solo los milisegundos en la estructura de ticks temp = tick_ptr->HW_TICKS % 10000;  // restar los usec de la estructura de ticks tick_ptr->HW_TICKS -= temp;  // convertir a xdate res = _time_ticks_to_xdate(tick_ptr,xdate_ptr);  // volver a poner los usec en la estructura de tics tick_ptr->HW_TICKS += temp;   // agregar usec, nsec y psec a xdate. xdate_ptr->USEC = (uint_16)(temp / 10);  xdate_ptr->NSEC = (uint_16)((temp % 10) * 100);  xdate_ptr->PSEC = 0;  return res;} /* Endbody */

I have 10000 HWTICKS per ms, so this function works for me.

I extract usec, nsec and psec from MQX_TICK_STRUCT, convert it to XDATE, then restore the extracted part and then complete the (now well converted) XDATE with usec, nsec and psec derived from the extracted part.