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MSP430F6726A: Application note SLAA322D Regarding the conditions in Table 3

user5994067
Intellectual 820 points
Part Number: MSP430F6726A
Other Parts Discussed in Thread: MSP430FE427A

Hi,

MSP430 32-KHz Crystal Oscillator Application Note Table 3

I would like to ask you about the safety factor test results.

The safety factors for each crystal of each company are listed,

but is this result an actual measurement value?

In that case, what are the settings of the registers XCAP and XT1DRIVE?

Are all register settings the default?

Best Regatrds,

  • 0
    TI__Expert 7015 points

    Hi, 

    user5994067 said:
    but is this result an actual measurement value?

    Yes. We can find the test platform description in the context. 

    The test was performed using a MSP430FE427A device populated on a MSPTS430PM64 target board, a platform whose design does not follow the recommendations detailed by this application report. The RQmax value of each crystal was determined by placing a potentiometer in series
    followed by testing for the crystal's start and stop allowances. The nearest standard resistor value (±5%) was recorded as general reference.

    user5994067 said:
    In that case, what are the settings of the registers XCAP and XT1DRIVE?

    I think all the register settings are default value. 

    Thanks, 

    Lixin 

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