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MSP430FR2355: VLO

Jan Macek
Prodigy 155 points
Part Number: MSP430FR2355

Tool/software:

Hello, 

I have questions about MSP430fr2355. I would like to power the processor with an internal oscillator VLO. At the same time, I would like to bring the VLO to the SMCLK signal on pin P3.4.

Could someone post example of code ? 

Thank you, Jan

  • +1
    TI__Mastermind 39690 points

    You can try the code below

    WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer  
    CSCTL4 = SELMS__VLOCLK| SELA__VLOCLK; // Set ACLK = XT1CLK = 32768Hz

    P1DIR |= BIT0 | BIT1 | BIT2; // set ACLK SMCLK and LED pin as output
    P1SEL1 |= BIT0 | BIT1; // set ACLK and SMCLK pin as second function

    PM5CTL0 &= ~LOCKLPM5; // Disable the GPIO power-on default high-impedance mode
    // to activate previously configured port settings

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