msp430流水灯蜂鸣器实验报告

MSP430 实验报告 水位报警器 姓名： 丁宇昊 学号： 021210508 一、实验目的： 掌握 msp430单片机的程序编写和运行过程。 掌握 IAR Embedded Workbench程序的编译和运行。 二、实验内容： 用继电器代替传感器输入模拟电压，用 IED灯显示水位高度，当 超过预定值时，蜂鸣器响，实现报警。 三、使用串口： P1口，P2 口 四、电路实现： 把继电器作为的 AD的输入，通过 AD转换，把电压分成 16小分， 每一份信号控制 1个 led，通过改变 led两端电平高低，控制 led 亮灭。当到达预定值时，把蜂鸣器的接口设置为高电平。 5、实验代码： #include void delay(int j) do j-; while (j != 0); int main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT ADC10CTL0 = ADC10SHT_2 + ADC10ON + ADC10IE; / ADC10ON, interrupt enabled ADC10CTL1 = INCH_1+SREF0; / input A1 ADC10AE0 |= BIT7; / PA.1 ADC option select P1DIR |= BIT0; / Set P1.0 to output direction P1DIR|=BIT4; P1DIR|=BIT5; P2DIR|= 0xff; P2OUT|=0xff; P2SEL for (;) ADC10CTL0 |= ENC + ADC10SC; / Sampling and conversion start _bis_SR_register(CPUOFF + GIE); / LPM0, ADC10_ISR will force exit if (ADC10MEM 960) P1OUT |=BIT4; P1OUT P2OUT =0xFE; else if(ADC10MEM 900) P1OUT |=BIT4; P1OUT P2OUT = 0xfc; else if(ADC10MEM 840) P1OUT |=BIT4; P1OUT P2OUT=0xf8; else if(ADC10MEM 780) P1OUT |=BIT4; P1OUT P2OUT= 0xf0; else if(ADC10MEM 660) P1OUT |=BIT4; P1OUT P2OUT= 0xe0; else if(ADC10MEM 600) P1OUT |=BIT4; P1OUT P2OUT= 0xc0; else if(ADC10MEM 540) P1OUT |=BIT4; P1OUT P2OUT= 0x80; else if(ADC10MEM 480) P1OUT |=BIT4; P1OUT P2OUT= 0x00; else if(ADC10MEM 420) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xfe; P1OUT|=BIT5; P2OUT=0xfe; else if(ADC10MEM 360) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xfc; P1OUT|=BIT5; P2OUT=0xfc; else if(ADC10MEM 300) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xf8; P1OUT|=BIT5; P2OUT=0xf8; else if(ADC10MEM 240) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xf0; P1OUT|=BIT5; P2OUT=0xf0; else if(ADC10MEM 180) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xe0; P1OUT|=BIT5; P2OUT=0xe0; else if(ADC10MEM 120) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0xc0; P1OUT|=BIT5; P2OUT=0xc0; P1DIR |=BIT6; P1OUT =BIT6; delay(100); else if(ADC10MEM 60) P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0x80; P1OUT|=BIT5; P2OUT=0x80; P1DIR |=BIT6; P1OUT =BIT6; delay(100); else P1OUT P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT P2OUT=0x00; P1OUT|=BIT5; P2OUT=0x00; P1DIR |=BIT6; P1OUT =BIT6; delay(100); / ADC10 interrupt service routine #pragma vector=ADC10_VECTOR _interrupt void ADC10_ISR(void) _bic_SR_register_on_exit(CPUOFF); / Clear