MSP430流水燈蜂鳴器實驗報告.doc

MSP430實驗報告 水位報警器 姓名： 丁宇昊 學號： 021210508一、實驗目的：掌握msp430單片機的程序編寫和運行過程。掌握IAR Embedded Workbench程序的編譯和運行。二、實驗內容：用繼電器代替?zhèn)鞲衅鬏斎肽M電壓，用IED燈顯示水位高度，當超過預定值時，蜂鳴器響，實現報警。三、使用串口：P1口，P2口四、電路實現：把繼電器作為的AD的輸入，通過AD轉換，把電壓分成16小分，每一份信號控制1個led，通過改變led兩端電平高低，控制led亮滅。當到達預定值時，把蜂鳴器的接口設置為高電平。5、 實驗代碼：#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&=0x00; 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 &= BIT5; P2OUT =0xFE; else if(ADC10MEM 900) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT = 0xfc; else if(ADC10MEM 840) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT=0xf8; else if(ADC10MEM 780) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT= 0xf0; else if(ADC10MEM 660) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT= 0xe0; else if(ADC10MEM 600) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT= 0xc0; else if(ADC10MEM 540) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT= 0x80; else if(ADC10MEM 480) P1OUT |=BIT4; P1OUT &= BIT5; P2OUT= 0x00; else if(ADC10MEM 420) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xfe; P1OUT|=BIT5; P2OUT=0xfe; else if(ADC10MEM 360) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xfc; P1OUT|=BIT5; P2OUT=0xfc; else if(ADC10MEM 300) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xf8; P1OUT|=BIT5; P2OUT=0xf8; else if(ADC10MEM 240) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xf0; P1OUT|=BIT5; P2OUT=0xf0; else if(ADC10MEM 180) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xe0; P1OUT|=BIT5; P2OUT=0xe0; else if(ADC10MEM 120) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0xc0; P1OUT|=BIT5; P2OUT=0xc0; P1DIR |=BIT6; P1OUT =BIT6; delay(100); else if(ADC10MEM 60) P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; P2OUT=0x80; P1OUT|=BIT5; P2OUT=0x80; P1DIR |=BIT6; P1OUT =BIT6; delay(100); else P1OUT&=BIT5; P2OUT=0x00; P1OUT|=BIT4; P2OUT=0x00; delay(20); P1OUT&=BIT4; 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(CP