i.MX ProcessorsのトピックLinux Watch Dog Interrupt -i.MX6 Sabre SDB

Linux Watch Dog Interrupt -i.MX6 Sabre SDB

sujithvarghese — Thu, 14 Aug 2014 04:47:34 GMT

Hello,

We try to Open WatchDog on Linux Application. Our platform is i.MX6 Sabre SDB and Linux kernel version is 3.0.5

Code Snippet "fd = open(/dev/watchdog,O_RDWR)". Linux rebooted after 60 Sec, Hope this is the default time period of WatchDog Timer.

But after reboot, the bootloader shown the previous reset status as Power - On Reset, instead of WDOG reset.

Can you please check this issue..Why it previous reset status become Power on Reset

Re: Linux Watch Dog Interrupt -i.MX6 Sabre SDB

Yuri — Thu, 14 Aug 2014 05:24:48 GMT

On the i.MX6 SDP / SDB board the i.MX6 WDOG_B pad output is connected so,

that its assertion causes (externally) POR_B.

Have a great day,
Yuri

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