- #include <msp430.h>
- extern unsigned int period,period1;
- int pwm1(period,period1) 調節占空比
- {
- P2DIR |= BIT0+BIT5; // P2.0 and P2.1 output
- P2SEL |= BIT0+BIT5; // P2.0 and P2.1 options select
- TA1CCR0 = 1000-1; // PWM Period
- TA2CCR0 = 1000-1;
- TA1CCTL1 = OUTMOD_7; // CCR1 reset/set
- TA1CCR1 = period; // CCR1 PWM duty cycle
- TA2CCTL2 = OUTMOD_7; // CCR2 reset/set
- TA2CCR2 = period1; // CCR2 PWM duty cycle
- TA1CTL = TASSEL_1 + MC_1 + TACLR; // ACLK, up mode, clear TAR
- TA2CTL = TASSEL_1 + MC_1 + TACLR;
- __bis_SR_register(LPM3_bits); // Enter LPM3
- __no_operation(); // For debugger
- }
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