我觉得好像是端口设置有问题
#include <msp430x14x.h>
#include "cry1602.h"
#include "math.h"
#define Num_of_Results 32
typedef unsigned char uchar;
typedef unsigned int uint;
uchar shuzi[]={"0123456789."};
uchar tishi[]={"The temp is:"};
static uint results[Num_of_Results]; //保存ADC转换结果的数组
void Trans_val(uint Hex_Val);
/****************主函数******************/
void main(void)
{
WDTCTL=WDTPW+WDTHOLD; //关闭看门狗
LcdReset(); //复位1602
DispNChar(2,0,12,tishi); //显示提示信息
DisplChar(11,1,'C'); //显示电压单位
P6SEL|=BIT1;//p6.0做为模拟信号输入端口
ADC12MCTL1=INCH_1;
ADC12CTL0=ADC12ON+SHT0_8+MSC; //打开ADC，设置采样时间
ADC12CTL1=SHP+CONSEQ_2;//使用采样定时
ADC12IE=0x01;
//ADCIE=0x01; //使能ADC中断
ADC12CTL0|=ENC; //使能转换
ADC12CTL0|=ADC12SC; //开始转换
_EINT();
LPM0;
}
/****************中断服务函数*********************
用途；多次平均计算P60口的模拟电压数值************/
#pragma vector=ADC_VECTOR
__interrupt void ADC12ISR(void)
{
static uint index=0;
results[index++]=ADC12MEM0; //移动结果
if(index==Num_of_Results)
{
uchar i;
unsigned long sum=0;
index=0;
for(i=0;i<Num_of_Results;i++)
{
sum+=results;
}
sum>>=5; //除以32
Trans_val(sum);
}
}
/*********************转换数据函数****************
功能；将16进制转换数据变换成三位10进制真实的模拟电压数据*****/
void Trans_val(uint Hex_val)
{
unsigned long caltmp;
int d[5];
uchar i;
float c,r,curr_volt1,t1;
uint curr_volt;
//uchar i,r,n,p;
caltmp=Hex_val;
caltmp=(caltmp<<5)+Hex_val; //caltmp=Hex_val*33
caltmp=(caltmp<<3)+(caltmp<<1); //caltmp=caltmp*10
curr_volt=caltmp>>12; //curr_volt= caltmp/2^n
curr_volt1=curr_volt;
r= (1700/(851-curr_volt1))-1.4;
c= (1/((1/298.15)+(log(r)/3950)))-273.15;
d[0]=(int)(c)/10;//得到c为4位有效数字 小数点前、后各两位
t1=c-(d[0]*10);
d[1]=(int)(t1);
d[2]=10;
d[3]=(int)((t1*10)-(d[1]*10));
d[4]=(int)(t1*1000-d[1]*1000-d[3]*100)/10;
for(i=0;i<5;i++)
{
DisplChar((6+i),1,shuzi[d]);
}
} |
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