CCS/AM4379: PTP problem

Hi

It works!!!

Thank you!!!

Regards;

Hi:

I got a new problem ...

Host(ubuntu):sudo  ./ptp4l -E -2 -H -i enp4s0 -l 7 -m -q -p /dev/ptp0 
Slave(board):sudo ./ptp4l -E -2 -H -i eth0 -s -l 7 -m -q -p /dev/ptp0

yes.It seems works...

I use this code to read the timestamp.

-----------------------------------------------------------------------------------------------------------------------

#define _GNU_SOURCE
#define __SANE_USERSPACE_TYPES__        /* For PPC64, to get LL64 types */
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <math.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <linux/ptp_clock.h>
#define DEVICE "/dev/ptp0"

/* clock_adjtime is not available in GLIBC < 2.14 */
#if !__GLIBC_PREREQ(2, 14)
#include <sys/syscall.h>
static int clock_adjtime(clockid_t id, struct timex *tx)
{
	return syscall(__NR_clock_adjtime, id, tx);
}
#endif
static clockid_t get_clockid(int fd)
{
#define CLOCKFD 3
#define FD_TO_CLOCKID(fd)	((~(clockid_t) (fd) << 3) | CLOCKFD)
	return FD_TO_CLOCKID(fd);
}




 
int main(int argc, char *argv[])
{
	
	struct timespec ts;
	struct timex tx;
	static timer_t timerid;
	struct itimerspec timeout;
	int c, cnt, fd;
	char *device = DEVICE;
	clockid_t clkid;
	int adjfreq = 0x7fffffff;
	int adjtime = 0;
	int capabilities = 0;
	int extts = 0;
	int gettime = 0;
	int index = 0;
	int list_pins = 0;
	int oneshot = 0;
	int pct_offset = 0;
	int n_samples = 0;
	int periodic = 0;
	int perout = -1;
	int pin_index = -1, pin_func;
	
	fd = open(device, O_RDWR);
	if (fd < 0) {
		fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
		return -1;
	}
	clkid = get_clockid(fd);
	if (CLOCK_INVALID == clkid) {
		fprintf(stderr, "failed to read clock id\n");
		return -1;
	}
	 
 while(1){
		if (clock_gettime(clkid, &ts)) {
			perror("clock_gettime");
		} else {
			printf("clock time: %ld.%09ld or %s",
			       ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec));
		}
	}
 
	close(fd);
	return 0;
}

--------------------------------------------------------------------------------------------------

and the Board shows :

The date and time is right.but the timestamp is false:

1.The timastamp  should  be 1570006833  in  my  country  at  that  moment while  not  1570035633.

It  seems  just  8 hours  between  them.

2.the code I used to read the timestamp is from here:

https://www.mjmwired.net/kernel/Documentation/ptp/testptp.c

I simplified it.

just ./testptp -g

And when I type "date".the Board shows this:

SO where is the problem maybe ?

Maybe the timezone isn't correct?

Best Regards