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ujda

Member Since: October 22, 2011

Country: United States

  • EOSC bit was set to 1, please read page 10 and 12 of DS3234 datasheet.

    You can alter EOSC bit by sending command to address 8Eh something like this:

    digitalWrite(cs, LOW); SPI.transfer(8Eh); SPI.transfer(00011100b);
    digitalWrite(cs, HIGH);

  • Must use 3.3v VCC, instead of 5.0v VCC used in the above Example Sketch, otherwise square wave output doesn't work.
    Must use SPI_MODE3, instead of Mode 1, otherwise one line correct time, followed by one line 00/00....

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