2.c

msp430温箱控制源程序,基于IAR编程.

#include<msp430x14x.h>
int T=5678;
int i=0;
int DISP[24]={0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};    
int CW[8]={0,0,0,0,0,0,0,1};   
int n[4];


void main(void)   
{WDTCTL=WDTPW+WDTHOLD;
P1DIR=0X07;
display(); 
if(P1IN&BIT5)
      {T=T+10;}
}


void display(void)
{  n[0]=T/1000;   // 将要显示的整型数存入数组
n[1]=(T-n[0]*1000)/100;
n[2]=(T-n[0]*1000-n[1]*100)/10;
n[3]=T-n[0]*1000-n[1]*100-n[2]*10;
int s=n[i];
for(int j=23;j>7;j--)     //此循环用以给显示字组赋值
{
DISP[j]=s%2;
s=s/2;                    //保存商
if(j%4==0)
{i++;
s=n[i];}
}


P1OUT |=BIT2;   //使能端无效
P1OUT &=~BIT1; //clock置0
P1OUT &=~BIT2; //使能端有效
for(int k=0;k<24;k++)  //发送显示字
{
if(DISP[k]==1)
P1OUT |=BIT0;
else
P1OUT &=~BIT0; 
P1OUT |=BIT1;    //clock置1
P1OUT &=~BIT1;   //clock置0
}



P1OUT |=BIT2;   //使能端无效
P1OUT &=~BIT2; //使能端有效
for(int m=0;m<8;m++)   //发送配置字
{
if(CW[m]==1)
P1OUT |=BIT0;
else
P1OUT &=~BIT0; 
P1OUT |=BIT1;    //clock置1
P1OUT &=~BIT1;   //clock置0
}
P1OUT |=BIT2;   //使能端无效
}