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by daemondust
Sun Jan 08, 2012 10:22 pm
Forum: General discussion
Topic: Is there any implementation of a system clock?
Replies: 6
Views: 2757

Re: Is there any implementation of a system clock?

Once someone has written kernel i2c/smbus drivers, you should be able to attach something like a chronodot to have the time set for you on boot. The kernel supports a lot of RTCs.
by daemondust
Sun Jan 08, 2012 2:57 pm
Forum: General discussion
Topic: Full SD card encryption
Replies: 2
Views: 1494

Re: Full SD card encryption

In general, this is done with an initrd setup.  That is, you boot into a small partition that has the drivers and programs you need to decrypt the main root filesystem and remount over.
by daemondust
Sat Dec 31, 2011 12:23 am
Forum: Other projects
Topic: NTP PPS
Replies: 285
Views: 133946

Re: NTP PPS

<r>Wiki page says "Each GPIO can interrupt, high/low/rise/fall/change.", so it should be fairly easy to do, though it may require a little kernel hacking.  USB serial should be good enough to get the time, with an interrupt setting the start of second.<br/> <br/> Even better would be if you can star...

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