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Microcontroller with dual clock control

Ala Shaabana
Prodigy 120 points
Other Parts Discussed in Thread: TM4C123GH6PM

Hello,

To my knowledge, the MSP430 microcontroller has a digitally controlled oscillator as well as a crystal oscillator. I am looking to build an application that utilizes both oscillators simultaneously and get the timestamp from each clock. Is an MSP430-based launchpad good enough for this task?

I currently have a Tiva C series tm4C123gxl, which has a TM4C123GH6PM MCU which appears incapable of dealing with dual clocks.

Thanks in advance,

  • 0
    Guru 318740 points
    Typically, ACLK can be sourced from the low-frequency crystal oscillator, and MCLK from the DCO; many families can have more flexible configurations.

    Have a look at the block diagram of the clock module in the User's Guide of whatever MSP430 family you're actually using.
  • 0
    Guru 46710 points

    Ala Shaabana said:
    To my knowledge, the MSP430 microcontroller has a digitally controlled oscillator as well as a crystal oscillator. I am looking to build an application that utilizes both oscillators simultaneously and get the timestamp from each clock. Is an MSP430-based launchpad good enough for this task?

    Indeed. msp430g2xx3_dco_flashcal.c of source code examples does exactly that. And little bit more.

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