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ofifg-oscillator fault flag

pacific
Prodigy 105 points
Other Parts Discussed in Thread: MSP430F1611

Hello Everyone,

I am using MSP430f1611 for my project. I need to initialize the microcontroller for UART communication. I have observed that the OFIFG bit is set at the beginning of the program. 

I would like to learn more about the oscillator fault flag(OFIFG) in the IFG1 buffer. What does it mean or signify?

Could someone  help me out here?

regards,

pacific

  • 0
    TI__Guru 73326 points

    Hi pacific,

    There is information about OFIFG in the 1xx family user's guide www.ti.com/lit/pdf/slau049 in chapter 4 Basic Clock Module. OFIFG is a flag set to indicate an oscillator fault. From the user's guide:

    "OFIFG is set by the oscillator fault signal, XT_OscFault. XT_OscFault is set at POR, when LFXT1 has an oscillator fault in HF mode, or when XT2 has an oscillator fault. When XT2 or LFXT1 in HF mode is stopped with software the XT_OscFault signal becomes active immediately, remains active until the oscillator is re-started, and becomes inactive approximately 50 μs after the oscillator re-starts as shown in Figure 4−8."

    There is more information and drawings in the user's guide as well.

    Regards,

    Katie

  • 0 in reply to Katie Pier
    Prodigy 105 points

    Thank you :)

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