重大光电MSP430单片机实验代码

实验一

#include

int main(void)

#include

int main(void)

{WDTCTL=WDTPW+WDTHOLD;

int flag=0;

P4REN |=BIT0+BIT1+BIT2+BIT3+BIT4;

P4OUT |=BIT0+BIT1+BIT2+BIT3+BIT4;

P1DIR |=BIT0+BIT6+BIT7;

while(1)

{ if((P4IN&BIT0)==0)

{

if ((P4IN&BIT0)==0)

{ flag=7;

}

}

if((P4IN&BIT4)==0)

{

if ((P4IN&BIT4)==0)

{ flag=3;

}

}

if((P4IN&BIT2)==0)

{

if ((P4IN&BIT2)==0)

{ flag=5;

}

}

if(flag==7)

{P1OUT |=BIT0;P1OUT |=BIT6;P1OUT &=~BIT7; }

if(flag==3)

{P1OUT |=BIT0;P1OUT |=BIT7;P1OUT &=~BIT6; }

if(flag==5)

{P1OUT &=~BIT0;

}

}

}

实验二

#include

void initAdc()

{

ADC12CTL0 |= ADC12MSC;//自动循环采样转换

ADC12CTL0 |= ADC12ON;//启动ADC12模块

ADC12CTL1 |= ADC12CONSEQ1 ;//选择单通道循环采样转换

ADC12CTL1 |= ADC12SHP;//采样保持模式

ADC12MCTL0 |= ADC12INCH_7; //选择通道15，连接拨码电位器

ADC12CTL0 |= ADC12ENC;

}

int main(void)

{

WDTCTL = WDTPW +WDTHOLD;

P4DIR |=BIT5+BIT6+BIT7;

P5DIR |=BIT7;

P8DIR |=BIT0;

ADC12CTL0=ADC12SHT0_8;

initAdc();

ADC12IE|=BIT0;

ADC12CTL0|=ADC12SC;

_EINT();// 开中断

}

#pragma vector=ADC12_VECTOR

__interrupt void ADC12ISR(void)

{

if(ADC12MEM0>=3686)

{

P4OUT |=BIT5+BIT6+BIT7;

P5OUT |=BIT7;

P8OUT |=BIT0;

}

if(ADC12MEM0>=2867)

{ P4OUT &=~BIT5;

P4OUT |=BIT6+BIT7;

P5OUT |=BIT7;P8OUT |=BIT0;

}

if(ADC12MEM0>=2048)

{

P4OUT &=~BIT5;P4OUT &=~BIT6;P4OUT |=BIT7;P5OUT |=BIT7;P8OUT |=BIT0;

}

if(ADC12MEM0>=1229)

{

P4OUT &=~BIT5;P4OUT &=~BIT6;P4OUT &=~BIT7;P5OUT |=BIT7;P8OUT |=BIT0;}

if(ADC12MEM0>=410)

{

P4OUT &=~BIT5;P4OUT &=~BIT6;P4OUT &=~BIT7;P5OUT &=~BIT7;P8OUT |=BIT0;

}

else

{

P4OUT=0x00;

P5OUT=0x00;

P8OUT=0x00;

}

}

实验三

#include

volatile unsigned int sin[256]={

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,0x0A, 0x0B, 0x0D, 0x0E, 0x10, 0x11, 0x13, 0x15, 0x16, 0x18, 0x1A, 0x1C, 0x1E, 0x20, 0x22, 0x25,0x27, 0x29, 0x2B, 0x2E, 0x30, 0x33, 0x35, 0x38, 0x3A, 0x3D, 0x40, 0x43, 0x45, 0x48, 0x4C, 0x4E,0x51, 0x55, 0x57, 0x5A, 0x5D, 0x60, 0x63, 0x66, 0x69, 0x6C, 0x6F, 0x72, 0x76, 0x79, 0x7C,0x80, 0x80, 0x83, 0x86, 0x89, 0x8D, 0x90, 0x93,0x96,0x99,0x9C,0x9F,0x0A2,0x0A5,0x0A 8,0x0AB,0x0AE,0x0B1,0x0B4,0x0B7,0x0BA,0x 0BC,0x0BF,0x0C2,0x0C5,0x0C7,0x0CA,0x0CC,0 x0CF,0x0D1,0x0D4,0x0D6,0x0D8,0x0DA,0x0D D,0x0DF,0x0E1,0x0E3,0x0E5,0x0E7,0x0E9,0x0 EA,0x0EC,0x0EE,0x0EF,0x0F1,0x0F2,0x0F4,0x0 F5,0x0F6,0x0F7,0x0F8,0x0F9,0x0FA,0x0FB,0x0 FC,0x0FD,0x0FD,0x0FE,0x0FF,0x0FF,0x0FF,0x0 FF,0x0FF,0x0FF,0x0FF,0x0FF,0x0FF,0x0FF,0x0FF, 0x0FF,0x0FE,0x0FD,0x0FD,0x0FC,0x0FB,0x0FA, 0x0F9,0x0F8,0x0F7,0x0F6,0x0F5,0x0F4,0x0F2, 0x0F1,0x0EF,0x0EE,0x0EC,0x0EA,0x0E9,0x0E7, 0x0E5,0x0E3,0x0E1,0x0DE,0x0DD,0x0DA,0x0D 8,0x0D6,0x0D4,0x0D1,0x0CF,0x0CC,0x0CA,0x 0C7,0x0C5,0x0C2,0x0BF,0x0BC,0x0BA,0x0B7,0 x0B4,0x0B1,0x0AE,0x0AB,0x0A8,0x0A5,0x0A2 ,0x9F, 0x9C, 0x99, 0x96, 0x93, 0x90, 0x8D, 0x89, 0x86, 0x83, 0x80, 0x80, 0x7C, 0x79, 0x78, 0x72, 0x6F, 0x6C, 0x69, 0x66, 0x63, 0x60, 0x5D, 0x5A, 0x57, 0x55, 0x51,0x4E, 0x4C, 0x48, 0x45, 0x43, 0x40, 0x3D, 0x3A, 0x38, 0x35, 0x33, 0x30, 0x2E, 0x2B, 0x29, 0x27, 0x25, 0x22, 0x20, 0x1E, 0x1C, 0x1A, 0x18, 0x16, 0x15, 0x13, 0x11, 0x10, 0x0E, 0x0D, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

void main(void)

{ volatile unsigned int i,j;

WDTCTL = WDTPW + WDTHOLD; //关闭看门狗

P7DIR |= BIT6;//设置P7.6口为输出口

P7SEL |= BIT6;//使能P7.6口第二功能位

DAC12_0CTL0 |= DAC12IR; //设置参考电压满刻度值，使Vout = Vref×(DAC12_xDAT/4096)

DAC12_0CTL0 |= DAC12SREF_1; //设置参考电压为AVCC

DAC12_0CTL0 |= DAC12AMP_5; //设置运算放大器输入输出缓冲器为中速中电流DAC12_0CTL0 |= DAC12CALON; //启动校验功能

DAC12_0CTL0 |= DAC12OPS;//选择第二通道P7.6

DAC12_0CTL0 |= DAC12ENC; //转化使能while(1)

{ for(j=0;j<5;j++)

{for(i=0;i<256;i++)

DAC12_0DAT =16*sin[i];

}//输入数据

for(j=5;j<10;j++)

{for(i=0;i<256;i++)

DAC12_0DAT =8*sin[i];

}

}

}