[riot-notifications] [RIOT-OS/RIOT] cpu/lpc2387: PM: enable SLEEP & POWERDOWN mode (#13982)

Marian Buschsieweke notifications at github.com
Fri May 1 09:28:24 CEST 2020


> Well the year counter is 12 bit, so there is a ~94% chance it will be at a value > 250 if it's entirely random.

I could swear that I get the same year when uninitialized for my MSB-A2 every time, but I didn't write it down to compare. I guess if someone is unlucky to have a MSB-A2 with a tendency to have the RTC value below 250, that person will end up with an uninitialized value most of the time.

> The downside of that is that it would lose time across reboots or deep sleep then

The MSB-A2 are only legacy systems of a former testbed. I guess if they ever get uses regularly again, than it will be a similar use case. In that it is more important to have predictable RTC values, than having correct values.

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