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EXP430FR5969 clock speed above 8MHz

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On my Wolverine LP, attempts to set the clock speed to 16MHz result in an oscillator fault as soon as CSCTL3.DIVM is cleared to remove the power-up divider.  This is not listed as an erratum for the MCU.  Has anybody confirmed a working board running with MCLK at 16MHz?  The datasheet says it should work up to that speed; it may just be that my specific device is unreliable.

 

The board does run at 12MHz with DCOCLK at 24MHz and DIVM_2.


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