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标题: adc两路读取时，分开显示正常，同时供电读取时数值叠加了 [打印本页]

作者: meihua 时间: 2021-8-28 14:53
标题: adc两路读取时，分开显示正常，同时供电读取时数值叠加了

我用的是赛元的SC92F7422单片机，设置了两个通道进行ADC读取，现在的问题是单独进行输入电压显示时可以正常读取并显示出数值，但是同时开的时候数值就以叠加的形式显示出来了
代码如下：

#include "Function_Init.H"
#include "SC92F742x_C.H"
#include "intrins.H"
#include<stdio.h>
unsigned long  ADCValue;
unsigned short i,b,a=0,u=0;
bit AdcFlag = 0;
unsigned short J,K;

unsigned char times_delay = 0,adc_delay=0,s_delay=0;
//#define LED2 P25
sbit  TL=P1^3;
sbit  WP=P1^0;
#define N 1000
int TempAdd=0;
uint value=0,step=0;

unsigned int t1 = 0;
unsigned int t2 = 0;
unsigned int t3 = 0;
unsigned int t4 = 0;
unsigned int t5 = 0;
unsigned int t6 = 0;
unsigned int t7 = 0;
unsigned int t8 = 0;
unsigned int t9 = 0;
unsigned int t10 = 0;
unsigned int t11 = 0;
unsigned int s0 = 0;
unsigned int s1 = 0;
unsigned int s3 = 0;
unsigned int s4 = 0;
unsigned int cnt1;
unsigned int cnt2;
unsigned int cnt3;
unsigned int cnt4;
unsigned int cnt5;
unsigned int cnt6;
unsigned int cnt7;
unsigned int cnt8;
unsigned int cnt9;
unsigned int cnt10;
unsigned int cnt11;
unsigned long ADC_Value1,ADC_Value2;

unsigned long sum;
void Delay(uint time)
{
uint c = 0;
for(c=0; c<100; c++)
for(; time>0; time--)
;
}
void IO_Init(void)
{
P0CON=0X3f;//0011 1111
P0PH=0X00;
      P1CON = 0x84;  //设置P1.7为强推挽模式//1000 1000
P1PH  = 0x00;//0000 0000
P2CON = 0xD3;  //设置P2为强推挽模式
P2PH  = 0x00;
}

void Timer_Init(void)
{
TMCON = 0X01; // ;Timer0选择时钟Fsys
//T0设置
TMOD |= 0x01;                //0000 0001;Timer0设置工作方式1
TL0 = (65536 - 1200)%256; //溢出时间：时钟为Fsys，则12000*（1/Fsys）=1ms;    12MHz
TH0 = (65536 - 1200)/256;
TR0 = 0;
ET0 = 1;//定时器0允许
TR0 = 1;//打开定时器0
EA = 1;
}

//void ADC_Init(void)
//{
// ADCCON |= 0X80;       //开启ADC，ADC采样频率为2M ,选择AIN9位ADC采样口
//// ADCVH=0;
//// ADCVL=0;//清除数据
////
// ADCCON&= ~(0X10);  //清中断标志位
// //IE |= 0X40;    //允许ADC产生中断
//// EA = 1;
//}

unsigned long Voltage()
{

      unsigned long L,M;

if(adc_delay>2)
{
ADCCON|=0X40;
if(!(ADCCON&0x10)==0)
      {
      ADCCON&= ~(0X10);  //清中断标志位
      }
ADCValue =((ADCVH<<4)|(ADCVL>>4));//0000 1111 1111 1111
M=(M*N+ADCValue*(1024-N))/1024;
adc_delay=0;
}

L=M/3;

//if(L>99){L=99;}
return L;
}
void ADC_channel(unsigned char channel)
{

ADCCON = ADCCON&0x80 | channel; //ADC 输入选择为 ADCchannel 口
}

void ADC_Multichannel()

{ ADCCON |= 0X80;
ADCCFG0=0x20;
ADCCFG1=0X02;//ain9为adc输入，移除上拉电阻


ADC_channel(5); //ADC 入口切换至 AIN5 口
      Delay(50);
ADC_Value1 = Voltage(); //启动 ADC 转换，获得转换值
//ADC_Value1=8;

ADC_channel(9); //ADC 入口切换至 AIN9 口
      Delay(50);
      ADC_Value2 =Voltage(); //启动 ADC 转换，获得转换值

}

unsigned int kaiguan(void)
{
if (TL==1)
{
      value|=(1<<0);//1
}
else
{
      value&=~(1<<0);//0
}

if (WP==1)
{
      value|=(1<<1);//2
}
else
{
      value&=~(1<<1);//0
}
return value;
}

void dlLCD(unsigned int data1,unsigned long data2)
{
unsigned short c=0;
if((data2==-1)||(data2==-2))
{
c=data2;
data2*=-1;
}
t6=1;

s0 = data1 &(1<<0);//1是off，0是on
s1 = data1 &(1<<1);
         switch(s0)  //激光
      { case 0:t1= 1;t5=3;t10=0;break;
      case 1:t1=0;t5=1;t10=1;break;
      }
switch(s1) //水保护
{
      case 0:t11 = 1;break;
      case 2:t11 = 2;t5=1;break;
}
s3=data2/10;//左边数字
s4=data2%10;//右边数字
if((c==-1)||(c==-2))
{
s3=10;
}
switch(s3)
{
  case 0:t7=3;t8=2;t9=3;t10=2;break;
  case 1:t7=1;t8=0;t9=1;break;
  case 2:t7=3;t8=1;t9=2;t10=2;break;
  case 3:t7=3;t8=1;t9=1;t10=2;break;
  case 4:t7=1;t8=3;t9=1;break;
  case 5:t7=2;t8=3;t9=1;t10=2;break;
  case 6:t7=2;t8=3;t9=3;t10=2;break;
  case 7:t7=3;t8=0;t9=1;break;
  case 8:t7=3;t8=3;t9=3;t10=2;break;
  case 9:t7=3;t8=3;t9=1;t10=2;break;
   case 10:t7=0;t8=1;t9=0;break;
}
// if((s0==1)&(s3==0)==1){t10=3;}
  if((s0==0)&(s3==0)|(s3==2)|(s3==3)|(s3==5)|(s3==6)|(s3==8)|(s3==9)==1){t10=2;}

if((s0==1)&(s3==0)==1){t10=3;}
if((s0==1)&(s3==2)==1){t10=3;}
if((s0==1)&(s3==3)==1){t10=3;}
if((s0==1)&(s3==5)==1){t10=3;}
if((s0==1)&(s3==6)==1){t10=3;}
if((s0==1)&(s3==8)==1){t10=3;}
if((s0==1)&(s3==9)==1){t10=3;}
if((s3==4)&(s0==0)==1){t10=0;}
if((s3==7)&(s0==0)==1){t10=0;}
if((s3==1)&(s0==0)==1){t10=0;}
switch(s4)
{
  case 0:t2=3;t3=2;t4=3;t6=3;break;
  case 1:t2=1;t3=0;t4=1;break;
  case 2:t2=3;t3=1;t4=2;t6=3;break;
  case 3:t2=3;t3=1;t4=1;t6=3;break;
  case 4:t2=1;t3=3;t4=1;break;
  case 5:t2=2;t3=3;t4=1;t6=3;break;
  case 6:t2=2;t3=3;t4=3;t6=3;break;
  case 7:t2=3;t3=0;t4=1;break;
  case 8:t2=3;t3=3;t4=3;t6=3;break;
  case 9:t2=3;t3=3;t4=1;t6=3;break;
}

switch(step)
{
case 0:
      if (times_delay<45)
         {
            break;
         }
times_delay=0;
/////////////////////////////////////////////////////////////
      P01=1;
P0VO = 0X01;//P01(com1)先高电平，P0=1/2vdd

switch(t1)
{
      case 0

02 = 1; cnt1 = 1;break; //
case 1

02 = 1; cnt1 = 2;break; //
case 2

02 = 0; cnt1 = 2;break; //
case 3

02 = 0; cnt1  = 1;break;  //
      default:break;
}
switch(t2)
{
      case 0

03 = 1; cnt2 = 1;break; //
case 1

03 = 1; cnt2 = 2;break; //
case 2

03 = 0; cnt2 = 2;break; //
case 3

03 = 0; cnt2  = 1;break;  //
      default:break;
}
switch(t3)
{
      case 0

04 = 1; cnt3 = 1;break; //
case 1

04 = 1; cnt3  = 2;break;  //
      case 2:P04 = 0; cnt3  = 2;break;  //
      case 3:P04 = 0; cnt3  = 1;break;  //
      default:break;
}
switch(t4)
{
      case 0:P05 = 1; cnt4  = 1;break;  //
      case 1:P05 = 1; cnt4  = 2;break;  //
      case 2:P05 = 0; cnt4  = 2;break;  //
      case 3:P05 = 0; cnt4  = 1;break;  //
      default:break;
}
switch(t5)
{
      case 0:P17 = 1; cnt5  = 1;break;  //
      case 1:P17 = 1; cnt5  = 2;break;  //
      case 2:P17 = 0; cnt5  = 2;break;  //
      case 3:P17 = 0; cnt5  = 1;break;  //
      default:break;
}
switch(t6)
{
      case 0:P20 = 1; cnt6  = 1;break;  //
      case 1:P20 = 1; cnt6  = 2;break;  //
      case 2:P20 = 0; cnt6  = 2;break;  //
      case 3:P20 = 0; cnt6  = 1;break;  //
      default:break;
}
switch(t7)
{
      case 0:P21 = 1; cnt7  = 1;break;  //
      case 1:P21 = 1; cnt7  = 2;break;  //
      case 2:P21 = 0; cnt7  = 2;break;  //
      case 3:P21 = 0; cnt7  = 1;break;  //
      default:break;
}
switch(t8)
{
      case 0:P24 = 1; cnt8  = 1;break;  //
      case 1:P24 = 1; cnt8  = 2;break;  //
      case 2:P24 = 0; cnt8  = 2;break;  //
      case 3:P24 = 0; cnt8  = 1;break;  //
      default:break;
}
switch(t9)
{
      case 0:P12 = 1; cnt9  = 1;break;  //
      case 1:P12 = 1; cnt9  = 2;break;  //
      case 2:P12 = 0; cnt9  = 2;break;  //
      case 3:P12 = 0; cnt9  = 1;break;  //
      default:break;
}
switch(t10)
{
      case 0:P26 = 1; cnt10  = 1;break;  //
      case 1:P26 = 1; cnt10  = 2;break;  //
      case 2:P26 = 0; cnt10  = 2;break;  //
      case 3:P26 = 0; cnt10  = 1;break;  //
      default:break;
}
switch(t11)
{
      case 0:P27 = 1; cnt11  = 1;break;  //
      case 1:P27 = 1; cnt11  = 2;break;  //
      case 2:P27 = 0; cnt11  = 2;break;  //
      case 3:P27 = 0; cnt11  = 1;break;  //
      default:break;
}

step=1;
break;
      case 1:
         if (times_delay<45)
         {
            break;
         }
      times_delay=0;
/////////////////////////////////////////////////////////////////

//             times_delay = 0;

         P00=0;//po低电平，P1=1/2vdd
P0VO = 0X02;
cnt1 -- ;if (cnt1 == 0){P02=~P02;cnt1 =2;}
cnt2 -- ;if (cnt2 == 0){P03=~P03;cnt2 =2;}
cnt3 -- ;if (cnt3 == 0){P04=~P04;cnt3 =2;}
cnt4 -- ;if (cnt4 == 0){P05=~P05;cnt4 =2;}
cnt5 -- ;if (cnt5 == 0){P17=~P17;cnt5 =2;}
cnt6 -- ;if (cnt6 == 0){P20=~P20;cnt6 =2;}
cnt7 -- ;if (cnt7 == 0){P21=~P21;cnt7 =2;}
cnt8 -- ;if (cnt8 == 0){P24=~P24;cnt8 =2;}
cnt9 -- ;if (cnt9 == 0){P12=~P12;cnt9 =2;}
cnt10 -- ;if (cnt10 == 0){P26=~P26;cnt10 =2;}
cnt11 -- ;if (cnt11 == 0){P27=~P27;cnt11 =2;}

step=2;
break;
/////////////////////////////////////////////////////////////////
      case 2:
         if (times_delay<45)
         {
            break;
         }
      times_delay=0;
   P01=0;
P0VO = 0X01;//P0=1/2vdd,P1低电平

      cnt1 -- ;if (cnt1 == 0){P02=~P02;cnt1 =2;}
cnt2 -- ;if (cnt2 == 0){P03=~P03;cnt2 =2;}
cnt3 -- ;if (cnt3 == 0){P04=~P04;cnt3 =2;}
cnt4 -- ;if (cnt4 == 0){P05=~P05;cnt4 =2;}
cnt5 -- ;if (cnt5 == 0){P17=~P17;cnt5 =2;}
cnt6 -- ;if (cnt6 == 0){P20=~P20;cnt6 =2;}
cnt7 -- ;if (cnt7 == 0){P21=~P21;cnt7 =2;}
cnt8 -- ;if (cnt8 == 0){P24=~P24;cnt8 =2;}
cnt9 -- ;if (cnt9 == 0){P12=~P12;cnt9 =2;}
cnt10 -- ;if (cnt10 == 0){P26=~P26;cnt10 =2;}
cnt11 -- ;if (cnt11 == 0){P27=~P27;cnt11 =2;}

step=3;

      break;
////////////////////////////////////////////////////////////////////
      case 3:
            if (times_delay<45)
         {
            break;
         }
            times_delay = 0;

      P00=1;//
P0VO = 0X02;//po高电平，P1=1/2vdd

cnt1 -- ;if (cnt1 == 0){P02=~P02;cnt1 =2;}
cnt2 -- ;if (cnt2 == 0){P03=~P03;cnt2 =2;}
cnt3 -- ;if (cnt3 == 0){P04=~P04;cnt3 =2;}
cnt4 -- ;if (cnt4 == 0){P05=~P05;cnt4 =2;}
cnt5 -- ;if (cnt5 == 0){P17=~P17;cnt5 =2;}
cnt6 -- ;if (cnt6 == 0){P20=~P20;cnt6 =2;}
cnt7 -- ;if (cnt7 == 0){P21=~P21;cnt7 =2;}
cnt8 -- ;if (cnt8 == 0){P24=~P24;cnt8 =2;}
cnt9 -- ;if (cnt9 == 0){P12=~P12;cnt9 =2;}
cnt10 -- ;if (cnt10 == 0){P26=~P26;cnt10 =2;}
cnt11 -- ;if (cnt11 == 0){P27=~P27;cnt11 =2;}

step=0;

      break;
      default:
      break;
///////////////////////////////////////////////////////////////////////////

}

}

void main(void)
{
IO_Init();
Timer_Init();
// ADC_channel( );
while(1)
{
kaiguan();
Voltage();
ADC_Multichannel();

// ADC_Multichannel2();

if(u==0)
{

dlLCD(value,ADC_Value2);
      u=1;
      Delay(800);
}
else if(u==1)
{

      dlLCD(value,ADC_Value1);

      u=0;
      Delay(800);

}

}

}

void timer0() interrupt 1
{

TL0 = (65536 - 1200)%256;
TH0 = (65536 - 1200)/256;

times_delay++;
adc_delay++;
s_delay++;
}

作者: meihua 时间: 2021-8-28 14:53
现在解决了，是因为两路adc同时使用一路一阶滤波的关系，设置一个标志位循环着获取并处理数据就行了

作者: meihua 时间: 2021-8-28 14:55
压缩包是实验的视频，有大神可以看看帮忙想想办法

作者: xuyuxi 时间: 2021-9-2 08:08
先读一个ADC，数值缓存下来，再读另一个ADC

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