Xavier watchdog example

[MarukoBG]

Do you have any example showing how to setup and use the watchdog on Xavier?

[ShaneCCC]

Have a check below link.

Use of TX2 Watchdog peripheral - role of WDT_TIME_OUT input

The WDT0 device node is /dev/watchdog0. The following user-space sample code shows opening, enabling, obtaining and specifiying the timeout value, and kicking the watchdog timer. int fd, ret; int timeout = 0; /* open WDT0 device (WDT0 enables itself automatically) */ fd = open("/dev/watchdog0", O_RDWR); if(fd < 0) { fprintf(stderr, "Open watchdog device failed!\n"); return -1; } /* WDT0 is counting now,check the default timeout value */ ret = ioctl(fd, WDIOC_GETTIMEOUT, &timeout); if…

[MarukoBG]

Hi @ShaneCCC,
I need to set the Watchdog in CBoot before the system starts in order to grant a safe boot and in case switch to A/B rootfs.
Do you have any code sample for Watchdog in CBoot or any detail about that?
Thanks

[ShaneCCC]

@MarukoBG
Watchdog already enable in cboot in default.

[MarukoBG]

@ShaneCCC,
could you be more explicit please?
How to you start it in CBoot?

[ShaneCCC]

Have a check the source code in …/bootloader/partner/common/drivers/wdt/tegrabl_wdt.c