hx711电子秤+lm35温度检测+lcd1602+tlc549程序 -

标题: hx711电子秤+lm35温度检测+lcd1602+tlc549程序 [打印本页]

作者: hhhhhhjjjjjjjjj 时间: 2020-12-5 19:25
标题: hx711电子秤+lm35温度检测+lcd1602+tlc549程序

单片机源程序如下:
#include <reg52.h>
#include <intrins.h>
#include <string.h>

bit bdata flag_key;
#include "main.h"
#include "LCD1602.h"
#include "HX711.h"
#include "keyboard.h"
#include "eeprom52.h"
#include "tlc549.h"
#define uchar unsigned char
#define uint  unsigned int

unsigned long HX711_Buffer = 0;
unsigned long Weight_Maopi = 0;
unsigned long Weight_Maopi_0 = 0;
unsigned int qupi=0;
long Weight_Shiwu = 0;
//键盘处理变量
unsigned char keycode;
unsigned char DotPos;                                  //小数点标志及位置

uint GapValue,GapValue1;

unsigned char idata price;    //单价，长整型值，单位为分
unsigned char idata money;    //总价，长整型值，单位为分
unsigned char idata lm35;
//定义标识
volatile bit FlagTest = 0;             //定时测试标志，每0.5秒置位，测完清0
volatile bit FlagKeyPress = 0;  //有键按下标志，处理完毕清0
//校准参数
//因为不同的传感器特性曲线不是很一致，因此，每一个传感器需要矫正这里这个参数才能使测量值很准确。
//当发现测试出来的重量偏大时，增加该数值。
//如果测试出来的重量偏小时，减小改数值。
//该值可以为小数
//#define GapValue 349
sbit LED=P3^2;

volatile bit ClearWeighFlag = 0; //传感器调零标志位，清除0漂

/******************把数据保存到单片机内部eeprom中******************/
void write_eeprom()
{
      SectorErase(0x1000);
      GapValue1=GapValue&0x00ff;
      byte_write(0x2000, GapValue1);
      GapValue1=(GapValue&0xff00)>>8;
      byte_write(0x2001, GapValue1);
      byte_write(0x2060, a_a);
}

/******************把数据从单片机内部eeprom中读出来*****************/
void read_eeprom()
{
      GapValue = byte_read(0x2001);
      GapValue = (GapValue<<8)|byte_read(0x2000);
      a_a    = byte_read(0x2060);
}

/**************开机自检eeprom初始化*****************/
void init_eeprom()
{
      read_eeprom();             //先读
      if(a_a != 1)             //新的单片机初始单片机内问eeprom
      {
            GapValue  = 3500;
            a_a = 1;
            write_eeprom();          //保存数据
      }
}

//显示单价，单位为元，四位整数，两位小数
void Display_Price()
{
         LCD1602_write_com(0x8c);
                     LCD1602_write_data(price/100 + 0x30);
                     LCD1602_write_data(price%100/10 + 0x30);
                     LCD1602_write_data('.');
                     LCD1602_write_data(price%10 + 0x30);
}

//显示重量，单位kg，两位整数，三位小数
void Display_Weight()
{
         LCD1602_write_com(0x82);
                     LCD1602_write_data(Weight_Shiwu/10000 + 0x30);
      LCD1602_write_data(Weight_Shiwu%10000/1000 + 0x30);
                     LCD1602_write_data('.');
                     LCD1602_write_data(Weight_Shiwu%1000/100 + 0x30);
                     LCD1602_write_data(Weight_Shiwu%100/10 + 0x30);
                     LCD1602_write_data(Weight_Shiwu%10 + 0x30);
      LCD1602_write_word("K ");
}
//显示总价，单位为元，四位整数，两位小数
void Display_Money()
{
  // unsigned int i,j;

if (money>9999)       //超出显示量程
{
   LCD1602_write_com(0xC2);
   LCD1602_write_word("---.-");
   return;
}
if (money>=1000)
{
   LCD1602_write_com(0XC2);
         LCD1602_write_data(money/1000 + 0x30);
         LCD1602_write_data(money%1000/100 + 0x30);
         LCD1602_write_data(money%100/10 + 0x30);
         LCD1602_write_data('.');
         LCD1602_write_data(money%10 + 0x30);
}
else if (money>=100)
{
   LCD1602_write_com(0XC2);
         LCD1602_write_data(0x20);
         LCD1602_write_data(money%1000/100 + 0x30);
         LCD1602_write_data(money%100/10 + 0x30);
         LCD1602_write_data('.');
         LCD1602_write_data(money%10 + 0x30);
}
else if(money>=10)
{
   LCD1602_write_com(0XC2);
      LCD1602_write_data(0x20);
         LCD1602_write_com(0XC3);
         LCD1602_write_data(0x20);
         LCD1602_write_data(money%100/10 + 0x30);
         LCD1602_write_data('.');
         LCD1602_write_data(money%10+ 0x30);
}
else
   {
   LCD1602_write_com(0XC2);
         LCD1602_write_data(0x20);
         LCD1602_write_com(0xC3);
         LCD1602_write_data(0x20);
         LCD1602_write_com(0xC4);
         LCD1602_write_data(0 + 0x30);
         LCD1602_write_data('.');
         LCD1602_write_data(money%10 + 0x30);
}
}
void Display_lm35()
{
         LCD1602_write_com(0xcc);
               lm35=lm35/10;
                     LCD1602_write_data(lm35*2/100+ 0x30);
                     LCD1602_write_data(lm35*2%100/10+0x30);
                     LCD1602_write_data('.');
                     LCD1602_write_data(lm35*2%10+ 0x30);
}

//数据初始化
void Data_Init()
{
price = 0;
DotPos = 0;
      lm35=0;
      money=0;
}

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作者: 好技术致用 时间: 2020-12-8 10:23
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