CCS/LAUNCHXL-CC1352R1: Read current UNIX timestamp

Hi Dekel, 

Which version of the SDK are you using and which project?

Can you share the code and what you have tried to make it work?

Thanks, 
Elin

Hi Elin,

My SDK's version is 3_30_00_03 (i'm aware that it's not the latest).

This is one of the examples i tried to use (but i didn't find a version which matches my SDK):

dev.ti.com/.../node

and this is the code i used based on the above example:

#include <ti/net/utils/clock_sync.h>

    struct tm netTime;
    status = ClockSync_get(&netTime);
    if((status == 0) || (status == CLOCKSYNC_ERROR_INTERVAL))
    {
        printf("Local time = %s\n\r",asctime(&netTime));
    }
    else
    {
        printf("Error = %d\n\r",status);
    }

    //.cfg file
    var SlNet = scripting.addModule("/ti/net/SlNet");
    var SlNet1 = SlNet.addInstance();

Trying compiling this code, got the following error message:

"scripting is not defined"

Besides that i tried using also:

struct xdc_runtime_Types_FreqHz freq;
Timestamp_getFreq(&freq);

uint32_t start_time = Timestamp_get32();
uint32_t t0 = start_time / freq.lo;
printf("t0 timestamp is %u\r\n", t0);

which printed a weird results.

Additionally, this is the time() implementation i used:

time_t ATTRIBUTE time(time_t *tout)
{
    UInt32 t;

    /* Seconds_get() returns number of seconds since Jan 1, 1970 00:00:00 GMT. */
    t = ti_sysbios_hal_Seconds_get();

#if defined(__ti__)
    /*
     *  TI time() function returns seconds since 1900, so add the number
     *  of seconds from 1900 to 1970 (2208988800).
     */
    t += 2208988800;
#endif

    if (tout) {
        *tout = t;
    }

    return (t);
}

which returned the time 2208988800 plus the time passed since the program started (and it's not the current UNIX timestamp).

Dekel

Hi Dekel, 

The example you linked to is for the CC3220S Launchpad but you specified the CC1352R1 in your question. Which device are you using?

Thanks, 
Elin

Hi, as i mentioned in the first post, i'm using CC1352R1 development kit.

I also said (maybe i wasn't clear) that i tried to use this example. i simply thought this example fits my SDK simplelink_cc13x2_26x2 version 3_30_00_03.

Hi Dekel, 

Thanks for sharing. The reason why I asked is that the link you shared is for the CC3220S Launchpad so I just wanted to make sure that we are on the same page. 

Okay, so there is no space for you to load the examples from the SDK? I haven't experienced any issues with using any of the default projects in the SDK (but I haven't tried them all). Which examples have you tried and what kind of error are you seeing when trying to load the example? 

Thanks, 
Elin

The 1352 has no WiFi. There is no way to use the 'net to set the clock. You have to do that yourself.

So if i understand correctly, there is not way to get the current timestamp from the CC1352R1 chip ?

In addition, the only way i can get the timestamp is to manually set it myself (in some way) on boot, and then i will be able to read the current timestamp ?

Ok, thank you for replaying !

I have tried few examples in the SDK but none of them worked for me.

After talking with Keith, i understood there isn't a standard way to retrieve the timestamp (like using time(NULL) in desktop computer)

and i have to receive it via GPS or WWV clock module.

Thank you for replaying !