MSP430FR2311: Timer Registers Undefined in MSP430FR2311 Using CCS and Energia

Tool/software:

Hi,

I want to generate a pulse signal using the MSP430FR2311. The pulse should have a width of 1 µs and a period of 1 second. I'm using TimerA to generate the 1 µs pulse and TimerB to generate the 1-second period. To keep it simple, I'm using the polling method.

Initially, I tried using the _delay_cycles() function to generate the 1 µs pulse, but it didn’t give accurate results. So, I switched to using timer registers for more precise control.

I'm using Code Composer Studio (CCS) for development. However, the IDE doesn't recognize the timer registers — it throws an error like:
"TA0CCR1" is undefined. I am also getting error for the variable i defined in the for loop.

I also tried using the Energia IDE, but the issue remains the same — the timer registers are not recognized.

Could anyone help me resolve this issue?

Thank you!

Below is the code:

#include <msp430.h>

int main(void)

{

    WDTCTL = WDTPW | WDTHOLD;    // Stop watchdog timer

    // Configure P1.0 as output

    P1DIR |= BIT0;

    P1OUT &= ~BIT0;

    // Use TimerA for pulse generation (1 µs) and TimerB for period (1 s)

    // TimerA

    TA0CTL = TASSEL__SMCLK | MC__STOP | TACLR; // Select SMCLK, keep timer stopped

    TA0CCR1 = 1; // Toggle after 1 µs

    // TimerB

    TB0CTL = TBSSEL__SMCLK | MC__STOP | TBCLR;

    TB0CTL |= ID__8; // Set prescaler = 8

    TB0CCR0 = 12500; // 1 second (assuming 1 MHz SMCLK)

    while (1)

    {

        TA0R = 0;

        TA0CTL |= MC__UP; // Start TimerA in up mode

        P1OUT |= BIT0; // Set output pin

        while (TA0R != TA0CCR1) {}

        TA0CTL &= ~MC__UP; // Stop TimerA

        P1OUT &= ~BIT0; // Clear output pin

        for (int i = 0; i < 10; i++)

        {

            TB0R = 0;

            TB0CTL |= MC__UP; // Start TimerB

            while (TB0R != TB0CCR0) {}

            TB0CTL &= ~MC__UP; // Stop TimerB

        }

    }

    return 0;

}