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MSP430F46187: RTC and waking up every second?

BasePointer
Expert 1570 points

Hi,

 

I would like to use RTC module but I also have to wake up every second. Is it possible with RTC module?

 

Thanks.

  • 0
    Guru 227245 points

    The 4xx RTC module does not offer 1s interrupts, only 1m/1hr etc. And then only on full minute/hour.
    You can set up the basic timer instead. It share the interrupt vector with the RTC anyway, so if the RTC is giving interrupts, the basic timer cannot and v.v.

    With ACLK running on 32768Hz, 1s or 2s interrupts are easy with the basic timer. Select the ACLK/256 source and then set the interval with BTIP = fCLK2/128 (or /256 for 2s interval).

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