ADC0808/0809模拟量检测、数据转换、1602显示驱动的实现

电子开发圈 2023-01-09 780

电子开发圈

14 文章 4.7w阅读 5粉丝

描述

51单片机结构简单，架构体系完备，学习资料丰富，应用领域广泛。通过对51单片机的学习，可帮助小白实现快速入门电子设计，理解电路系统工作原理，为高级嵌入式芯片的学习及开发打下坚实基础。

本篇描述

 

1、51+Proteus8.10；

2、学习ADC0808/0809模拟量检测、数据转换、1602显示驱动；

仿真设计

  采用Proteus作为仿真设计工具。Proteus是一款著名的EDA工具（仿真软件），从原理图布图、代码调试到单片机与外围电路协同仿真，一键切换到PCB设计，真正实现了从概念到产品的完整设计。

软件设计

 

采用Keil作为软件设计工具。Keil提供了包括C编译器、宏汇编、链接器、库管理和一个功能强大的仿真调试器等在内的完整开发方案，通过一个集成开发环境（μVision）将这些部分组合在一起。

 

#include 
#include "SMC1602.h"
#include "DATransform.h"
#define TIME0H 0x3C
#define TIME0L 0xB0


unsigned char uc_Clock=0;    //¶¨Ê±Æ÷0ÖжϼÆÊý
bit b_DATransform=0;


void vShowVoltage(unsigned int uiNumber)
{
  unsigned char ucaNumber[3],ucCount;


  if(uiNumber>999)          
    uiNumber=999;


  ucaNumber[0]=uiNumber/100;                //°Ñ¼ÆËãÊý×ÖµÄÿ¸öλ´æÈëÊý×é¡£
  ucaNumber[1]=(uiNumber-100*(int)ucaNumber[0])/10;              
  ucaNumber[2]=uiNumber-100*(int)ucaNumber[0]-10*ucaNumber[1];


  for(ucCount=0;ucCount<3;ucCount++)
    {
    vShowOneChar(ucaNumber[ucCount]+48);        //´ÓÊ×λµ½ÄλÖðÒ»Êä³ö¡£
    if(ucCount==0)
      vShowOneChar('.');
    }
}


void main()
{
  TMOD=0x01;      //¶¨Ê±Æ÷0£¬Ä£Ê½1¡£
  TH0=TIME0H;
  TL0=TIME0L;
  TR0=1;        //Æô¶¯¶¨Ê±Æ÷¡£
  ET0=1;        //¿ª¶¨Ê±Æ÷Öжϡ£
  EA=1;        //¿ª×ÜÖжÏ
  vdInitialize();
  vWriteCMD(0x84);     //дÈëÏÔʾÆðʼµØÖ·£¨µÚ¶þÐеÚÒ»¸öλÖã
  vShowChar("Voltage:");
  vWriteCMD(0xC9);
  vShowChar("(V)");


  while(1)
    {
    if(b_DATransform==1)
      {
      b_DATransform=0;
      vWriteCMD(0xC4);
      vShowVoltage(uiADTransform());
      }
    }
}


void Time0() interrupt 1
{
  if(uc_Clock==0)
    {
    uc_Clock=5;
    b_DATransform=1;
    }
  else
    uc_Clock--;


  TH0=TIME0H;       //»Ö¸´¶¨Ê±Æ÷0¡£
  TL0=TIME0L;
}

 

SMC1602.c

 

#include "SMC1602.h"


void vWriteCMD(unsigned char ucCommand)            
{
  vDelay();        //ÏÈÑÓʱ¡£
  LCDE=1;          //È»ºó°Ñ£Ì£Ã£Ä¸ÄΪдÈëÃüÁî״̬¡£
  LCDRS=0;
  LCDRW=0;
  LCDPORT=ucCommand;      //ÔÙÊä³öÃüÁî¡£
  LCDE=0;          //×îºóÖ´ÐÐÃüÁî¡£
}


void vWriteData(unsigned char ucData)            
{
  vDelay();         //ÏÈÑÓʱ¡£
  LCDE=1;           //È»ºó°Ñ£Ì£Ã£Ä¸ÄΪдÈëÊý¾Ý״̬¡£
  LCDRS=1;
  LCDRW=0;
  LCDPORT=ucData;         //ÔÙÊä³öÊý¾Ý¡£
  LCDE=0;           //×îºóÏÔʾÊý¾Ý¡£
}


void vShowOneChar(unsigned char ucChar)
{
  switch(ucChar)
    {
    case ' ': vWriteData(0x20);break;
    case '!': vWriteData(0x21);break;
    case '"': vWriteData(0x22);break;
    case '#': vWriteData(0x23);break;
    case '$': vWriteData(0x24);break;
    case '%': vWriteData(0x25);break;
    case '&': vWriteData(0x26);break;
    case '>': vWriteData(0x27);break;
    case '(': vWriteData(0x28);break;
    case ')': vWriteData(0x29);break;
    case '*': vWriteData(0x20);break;
    case '+': vWriteData(0x2A);break;
    case '-': vWriteData(0x2D);break;
    case '/': vWriteData(0x2F);break;
    case '=': vWriteData(0x3D);break;
    case '<': vWriteData(0x3E);break;
    case '?': vWriteData(0x3F);break;
    case '.': vWriteData(0x2E);break;
    case ':': vWriteData(0x3A);break;


    case '0': vWriteData(0x30);break;
    case '1': vWriteData(0x31);break;
    case '2': vWriteData(0x32);break;
    case '3': vWriteData(0x33);break;
    case '4': vWriteData(0x34);break;
    case '5': vWriteData(0x35);break;
    case '6': vWriteData(0x36);break;
    case '7': vWriteData(0x37);break;
    case '8': vWriteData(0x38);break;
    case '9': vWriteData(0x39);break;


    case 'A': vWriteData(0x41);break;
    case 'B': vWriteData(0x42);break;
    case 'C': vWriteData(0x43);break;
    case 'D': vWriteData(0x44);break;
    case 'E': vWriteData(0x45);break;
    case 'F': vWriteData(0x46);break;
    case 'G': vWriteData(0x47);break;
    case 'H': vWriteData(0x48);break;
    case 'I': vWriteData(0x49);break;
    case 'J': vWriteData(0x4A);break;
    case 'K': vWriteData(0x4B);break;
    case 'L': vWriteData(0x4C);break;
    case 'M': vWriteData(0x4D);break;
    case 'N': vWriteData(0x4E);break;
    case 'O': vWriteData(0x4F);break;
    case 'P': vWriteData(0x50);break;
    case 'Q': vWriteData(0x51);break;
    case 'R': vWriteData(0x52);break;
    case 'S': vWriteData(0x53);break;
    case 'T': vWriteData(0x54);break;
    case 'U': vWriteData(0x55);break;
    case 'V': vWriteData(0x56);break;
    case 'W': vWriteData(0x57);break;
    case 'X': vWriteData(0x58);break;
    case 'Y': vWriteData(0x59);break;
    case 'Z': vWriteData(0x5A);break;


    case 'a': vWriteData(0x61);break;
    case 'b': vWriteData(0x62);break;
    case 'c': vWriteData(0x63);break;
    case 'd': vWriteData(0x64);break;
    case 'e': vWriteData(0x65);break;
    case 'f': vWriteData(0x66);break;
    case 'g': vWriteData(0x67);break;
    case 'h': vWriteData(0x68);break;
    case 'i': vWriteData(0x69);break;
    case 'j': vWriteData(0x6A);break;
    case 'k': vWriteData(0x6B);break;
    case 'l': vWriteData(0x6C);break;
    case 'm': vWriteData(0x6D);break;
    case 'n': vWriteData(0x6E);break;
    case 'o': vWriteData(0x6F);break;
    case 'p': vWriteData(0x70);break;
    case 'q': vWriteData(0x71);break;
    case 'r': vWriteData(0x72);break;
    case 's': vWriteData(0x73);break;
    case 't': vWriteData(0x74);break;
    case 'u': vWriteData(0x75);break;
    case 'v': vWriteData(0x76);break;
    case 'w': vWriteData(0x77);break;
    case 'x': vWriteData(0x78);break;
    case 'y': vWriteData(0x79);break;
    case 'z': vWriteData(0x7A);break;


    default: break;
    }
}


void vShowChar(unsigned char ucaChar[])
{
  unsigned char ucCount;
  for(ucCount=0;;ucCount++)
    {
    vShowOneChar(ucaChar[ucCount]);
    if(ucaChar[ucCount+1]=='�')
      break;
    }
}


void vDelay()
{
  unsigned int uiCount;
  for(uiCount=0;uiCount<250;uiCount++);
}

 

SMC1602.h

 

#ifndef __SMC1602_H__
#define __SMC1602_H__
#include 
#define vdInitialize()  vWriteCMD(0x01);vWriteCMD(0x38);vWriteCMD(0x0C);    //³õʼ»¯
#define LCDRS P3_5  
#define LCDRW P3_6  
#define LCDE P3_7  
#define LCDPORT P0
void vDelay();                     //ÑÓʱº¯Êý¡£
void vWriteCMD(unsigned char ucCommand);       //°Ñ1¸öÃüÁîдÈëLCD¡£
void vWriteData(unsigned char ucData);         //°Ñ1¸öÊý¾ÝдÈëLCD¡£
void vShowOneChar(unsigned char ucChar);
void vShowChar(unsigned char ucaChar[]);
#endif

 

DATransform.c

 

#include 
#define START P3_4  //ATART£¬ALE½Ó¿Ú¡£0->1->0:Æô¶¯ADת»»¡£
#define EOC P3_3   //ת»»Íê±ÏÓÉ0±ä1.
#define OUTPORT P2 


unsigned int uiADTransform()
{
  unsigned int uiResult;


  START=1;       //Æô¶¯ADת»»¡£
  START=0;


  while(EOC==0);     //µÈ´ýת»»½áÊø¡£


  uiResult=OUTPORT;   //³öÈëת»»½á¹û¡£


  uiResult=(100*uiResult)/51;       //´¦ÀíÔËËã½á¹û¡£


  return uiResult;
}

 

DATransform.h

 

#ifndef __DATRANSFORM_H__
#define __DATRANSFORM_H__
unsigned int uiADTransform();
#endif

 

　　审核编辑：汤梓红
 
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