Read SS MM HH SS and if the first and second readings of SS are within the same minute you know you have a good reading. /tvb
----- Original Message ----- From: "d0ct0r" <t...@patoka.org> To: <time-nuts@febo.com> Sent: Friday, February 14, 2014 2:20 PM Subject: [time-nuts] Maxim DS3232 and I2C >I would like to ask an advise for following: > > Lets say I have a DS3232 RTC connected by I2C to some MCU. The maximum > allowed I2C bus speed is 400KHZ. And I need to read time (HH:MM:SS) from > it. It will be THREE SEPARATE REQUESTS for each part (hours, minutes and > seconds). My concern: what if I start to read time at the edge, when it > will change itself inside of DS3232 ? Potentially, I could get weird > results, like hours and minutes stay the same, but seconds has changed. > Or even worth - hours is the same, but seconds and minutes has changed. > Is there any method to read all three values (HH:MM:SS) by one single > requests ? Or is there any other workaround for this issue ? Or it is > not issue at all ? Thanks ! > > > -- > WBW, > > V.P. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.