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QE128, real-time counter, and ERCLK

Question asked by Andrew Culpepper on Oct 17, 2012
Latest reply on Oct 18, 2012 by Andrew Culpepper

Hi,

    The QE128 is running from an external 32kHz crystal with a bus speed of 1.245MHz.  I can't seem to get the real-time counter to work if the ERCLK is selected as the source.  These are the register settings:

 

ICSC1 = %10000000

ICSC2 = %11011111

ICSSC = %00100000

 

RTCSC = %10110001

 

    The RTC interrupt is called as expected if the LPO is selected or the IRCLK is enabled and selected as the source.

 

    What am I missing?

 

Thanks,

    Andrew

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