TMS320F28379D: CLOCK_REALTIME is undefined showed!

Mukesh,

I'm working to get a proper answer from the SW perspective here, but I can say from a HW perspective that the C2000 MCU does not have a real-time clock on the device for this function to reference.

Best,

Matthew

Assuming you're using the posix files in SYS/BIOS, it looks like CLOCK_REALTIME is defined in bios_6_83_00_18\packages\ti\posix\ccs\time.h. You have a time.h file included in your code, but do you know if it's the same one?

Whitney

Hello Whitney Dewey,

In the time.h header file there wasn't any defined value of CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_THREAD_CPUTIME_ID and CLOCK_PROCESS_CPUTIME_ID. That's is one reason and then Control Card Delfino F28379D has no RTC module built-in.

Kind regards

Mukesh Ghosh

Hello Matthew and Whitney,

Currently, I am using time function to get a timer clock but it cant give a highest precision in micro second or nano second. For getting time precision in micro or nano second I need to use clock_gettime or gettimeofday function. But unfortunately time.h header file provied from Texas Instrument (TI) haven't any implementation of clock_gettime and TI haven't provided #include<sys/time.h> header file which support gettimeofday fuction. My code is working with time(NULL) function but I need more precision for my project. If you guys can give me any suggestions, it will be really helpful for me. Thanks in advance.

Kind regards

Mukesh Ghosh

//current implementation

time_t rawtime = time(NULL);
struct tm *today;
today = localtime(&rawtime);

I'm looking at the clock.c file C:\ti\bios_6_83_00_18\packages\ti\posix\tirtos and can see an implementation of clock_gettime(). Is that not what you're using?

Whitney

Or is the problem that it isn't building when you call it in your code? Like I mentioned, ti\posix\ccs\time.h does contain a #define for CLOCK_REALTIME. Is that folder not on the include path?

Whitney

Hello Whitney Dewey,

I haven't found any path name "C:\ti\bios_6_83_00_18\packages\ti\posix\tirtos". I am opening a example code from code "C:\ti\controlSUITE\device_support\F2837xD". I dont have any path related to bios_6_83_00_18. Can you please tell me how can I get this bios file , am I need to install some software from TI?. On the other hand, inside my clock.c header file there is no implementation of clock_gettime() function. Please let me inform if you have any suggestions.

Kind regards

Mukesh Ghosh

What implementation of the time functions are you using? Are you implementing them yourself? I had assumed you were using the SYS/BIOS implementation of the posix functions since that is the only one I am aware of for C2000 devices. Sorry for the confusion.

Whitney