DS1904 RTC - How to Convert Binary Time into Real Time/Date?

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  1. - 27th November 2010, 15:30 #4
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    cncmachineguy
    cncmachineguy is offline Senior Member
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    I should have been more clear. I ment to say the 32 bit number represents the number of seconds since you sent it the command to reset the count, AND turn the OSC on. This thing looks to be a 32 bit counter, with each bit representing 1 second. I am not sure if it can be pre-set, or if you just have to know what time it is when you turn the OSC on.

    EDIT: Went back and read the datasheet again, yes you can write current time data to it. The most important thing is to realize it is all referenced to some known time. It just gives the number of seconds since then. I don't understand how it can be "syncronized" with the PC clock, this implies both use a reference system and they are the same
    Last edited by cncmachineguy; - 27th November 2010 at 15:39.
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