ADC.rar_msp430 AD

#include<msp430x16x.h> void initADC(); void initTA(void); // unsigned long ADC12TM=0; float sample[3];//第一次电位器的值和以后测的值 int motorstep=0,t;//步进电机转步数 void main() { WDTCTL=WDTPW+WDTHOLD;//关闭看门狗 P6SEL=BIT0;//p60口电位器输入 P6DIR &=~BIT0; P1DIR=0XFF; P1OUT=0XFF; initADC(); for(t=50;t>0;t--); //if(~(P2IN&BIT6)) //{ // for(t=5000;t>0;t--); initTA(); //if(~(P2IN&BIT6)) //{ //ADC12CTL0 |=ENC; ADC12CTL0 |=ADC12SC; P1OUT &=~BIT6; motorstep=(int)(sample[3]-sample[1])/0.45; //ADC12CTL0 &=~ADC12SC; //} //} while(1) { _NOP(); } } void initADC() { ADC12CTL0=SHT0_4+MSC+ADC12ON;//设置参考电压2.5v ADC12CTL1=SHP+CONSEQ_2; ADC12IE=0X01; ADC12CTL0 |=ENC; //ADC12CTL0 |=ADC12SC; _EINT(); } void initTA() { CCTL0=CCIE; CCR0=40; TACTL=TASSEL_1+MC_1; } #pragma vector=ADC12_VECTOR __interrupt void inputADC() { sample[t++]=ADC12MEM0; ADC12CTL0 &=~ENC; ADC12CTL0 &=~ADC12SC; } #pragma vector=TIMERA0_VECTOR __interrupt void motor_PWM() { if(motorstep>0) { P1OUT &=~BIT0; P1OUT^=BIT2; motorstep--; } else if(motorstep<0) { P1OUT|=BIT0; P1OUT^=BIT2; motorstep++; } else CCTL0 &=~CCIE; }