贴一下代码，不用全部看，各路大神只需根据我出现的问题看看关键部分就行了。
#include <msp430x14x.h>
#include "BoardConfig.h"
#include "cry1602.h"
#include "cry1602.c“
uchar shuzi[] = {"0123456789."};
uchar tishi[] = {"The volt is:"};
uchar xs1[]={"1:"};
uchar xs2[]={"2:"};
uchar xs3[]={"3:"};
uchar xs4[]={"4:"};
int result0;
int result1;
int result2;
int result3;
int c1,c2;
uchar m,n;
uchar FFW[8]={0xFE,0xFC,0xFD,0xF9,0xFB,0xF3,0xF7,0xF6};//正转数组
uchar REV[8]={0xF6,0xF7,0xF3,0xFB,0xF9,0xFD,0xFC,0xFE};//反转数组
void delay( uint y)
{
while(y!=0x00)
y--;
}
void Trans_val(uint Hex_Val)
{
unsigned long caltmp;
uint Curr_Volt;
uchar t1,i;
uchar ptr[4];
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
ptr[0] = Curr_Volt / 100; //Hex->Dec变换
t1 = Curr_Volt - (ptr[0] * 100);
ptr[2] = t1 / 10;
ptr[3] = t1 - (ptr[2] * 10);
ptr[1] = 10; //shuzi表中第10位对应符号"."
//在液晶上显示变换后的结果
for(i = 0;i < 4;i++)
Disp1Char((6 + i),1,shuzi[ptr[i]]);
}
#pragma vector=ADC_VECTOR
__interrupt void ADC12ISR (void)
{
result0=ADC12MEM0;
result1=ADC12MEM1;
result2=ADC12MEM2;
result3=ADC12MEM6;
c1=result0-result1;
c2=result2-result3;
delay(100);
DispNChar(2,0,2,xs1);
Trans_val(result0);
delay(100);
DispNChar(2,0,2,xs2);
Trans_val(result1);
delay(50);
DispNChar(2,0,2,xs3);
Trans_val(result2);
delay(50);
DispNChar(2,0,2,xs4);
Trans_val(result3);
if(c1<0)
{
P3DIR=0x0f;
for(m=0;m<8;m++)
{
P3OUT=FFW[m];
delay(1000);
}
}
else
{
if(c1>0)
{
P3DIR=0x0f;
for(m=0;m<8;m++)
{
P3OUT=REV[m];
delay(1000);
}
}
else
{
P3DIR=0x00;
}
}
if(c2<0)
{
P4DIR=0x0f;
for(n=0;n<8;n++)
{
P4OUT=FFW[n];
delay(1000);
}
}
else
{
if(c2>0)
{
P4DIR=0x0f;
for(n=0;n<8;n++)
{
P4OUT=REV[n];
delay(1000);
}
}
else
{
P4DIR=0x00;
}
}
}
//保存ADC转换结果的数组 // is not used for anything.
/************************主函数****************************/
void main(void)
{
WDTCTL = WDTPW+WDTHOLD; //关闭看门狗
/*下面六行程序关闭所有的IO口*/
P1DIR = 0XFF;P1OUT = 0XFF;
P2DIR = 0XFF;P2OUT = 0XFF;
P3DIR = 0XFF;P3OUT = 0XFF;
P4DIR = 0XFF;P4OUT = 0XFF;
P5DIR = 0XFF;P5OUT = 0XFF;
P6DIR = 0XFF;P6OUT = 0XFF;
//P6DIR |= BIT2;P6OUT |= BIT2; //关闭电平转换
while(1)
{
LcdReset(); //复位1602液晶
DispNChar(2,0,12,tishi); //显示提示信息
Disp1Char(11,1,'V'); //显示电压单位
P6SEL |= 0x47; // 使能ADC通道
ADC12CTL0 = ADC12ON+SHT0_2+MSC; // 打开ADC，设置采样时间
ADC12CTL1 = SHP+CONSEQ_3;
ADC12MCTL0=INCH_0; //channel=A0
ADC12MCTL1=INCH_1; //channel=A1
ADC12MCTL2=INCH_2; //channel=A2
ADC12MCTL6=INCH_6+EOS;
delay(100);
// 使用采样定时器
ADC12IE = 0x01; // 使能ADC中断
ADC12CTL0 |= ENC; // 使能转换
ADC12CTL0 |= ADC12SC; // 开始转换
_EINT();
LPM0;
}程序功能呢说明：四路AD采样，然后根据两个AD采集的型号差值来驱动电机。为了分别测试，我用液晶显示采集回来的电压值。目前我测试的结果是，单独给差值，电机能动，上述程序，测试结果是液晶能显示采集回来的差值，但是电机驱动不了，各位给分析分析。 |
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