帮我写一段msp430f149播放祝你平安歌的代码

好的，以下是一段播放祝你平安歌的代码

#include <msp430f149.h>

#define SOUND_PIN BIT0

void delay(unsigned int cnt) {
    while(cnt--)__delay_cycles(1000);
}

void tone(int freq) {
    TACCR0 = freq;
    TACCR1 = freq / 2;    // 50% duty cycle
    TACCTL1 |= OUTMOD_7;  // reset/set mode
}

void no_tone() {
    TACCTL1 &= ~OUTMOD_7;
}

void play_sound(int note, int duration) {
    tone(note);
    delay(duration);
    no_tone();
}

void play() {
    int song[] = {
        262, 250, 0, 294, 250, 0, 330, 500, 
        294, 500, 262, 500, 294, 500, 330, 500, 
        330, 250, 0, 350, 250, 0, 392, 500,
        330, 500, 294, 500, 262, 500, 294, 500,
        262, 250, 0, 294, 250, 0, 330, 500,
        294, 500, 262, 500, 294, 500, 330, 500,
        294, 250, 0, 330, 250, 0, 350, 500,
        392, 250, 0, 0, 250, 0, 392, 500
    };
    int duration[] = {
        4, 4, 2, 4, 4, 2, 2, 2,
        4, 4, 4, 4, 4, 4, 2, 2,
        4, 4, 2, 4, 4, 2, 2, 2,
        4, 4, 4, 4, 4, 4, 2, 2,
        4, 4, 2, 4, 4, 2, 2, 2,
        4, 4, 4, 4, 4, 4, 2, 2,
        4, 4, 2, 4, 4, 2, 2, 2,
        4, 4, 4, 4, 4, 4, 2, 2
    };

    int i;
    for(i = 0; i < sizeof(song)/sizeof(song[0]); ++i) {
        if(song[i] == 0) {
            delay(duration[i]);
        } else {
            play_sound(song[i], duration[i]);
        }
        delay(duration[i] / 2);
    }
}

void main(void) {
    WDTCTL = WDTPW + WDTHOLD; // Stop WDT
    P1DIR |= SOUND_PIN; // Make P1.0 an output

    TACTL = TASSEL_2 + MC_1 + ID_0; // Timer A2 setup
    TACCTL1 = OUTMOD_0 + CCIE; 

    while(1) {
        play();
        delay(2000);
    }
}

该代码通过 MSP430F149 微控制器实现了祝你平安歌的播放。您需要将蜂鸣器连接到微控制器的 P1.0 引脚，然后将代码下载到微控制器中即可播放。