#include <reg52.h>
#include <intrins.h>
#include <string.h>
#include "main.h"
#include "HX711.h"
#include "eeprom52.h"
unsigned long HX711_Buffer = 0;
unsigned long Weight_Maopi = 0;
unsigned long Weight_Maopi_0 = 0;
long Weight_Shiwu = 0;
unsigned int qupi=0;
unsigned char p=0;
//键盘处理变量
unsigned char keycode;
unsigned char key_press_num=0;
uint GapValue,GapValue1;
bit flag_cz=0;
unsigned char code LEDData[]={0x5F,0x44,0x9D,0xD4,0xC6,0xD3,0xDB,0x57,0xDF,0xD7,0xCF,0xaA,0x9B,0xDC,0x9B,0x8B}; //数码管显示码表
//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=P1^1;
sbit ROW1=P3^0;
sbit ROW2=P3^1;
sbit ROW3=P3^2;
sbit DIAN = P0^6; //小数点
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(0x1080);
GapValue1=GapValue&0x00ff;
byte_write(0x1000, GapValue1);
GapValue1=(GapValue&0xff00)>>8;
byte_write(0x1001, GapValue1);
byte_write(0x1060, a_a);
}
/******************把数据从单片机内部eeprom中读出来*****************/
void read_eeprom()
{
GapValue = byte_read(0x1001);
GapValue = (GapValue<<8)|byte_read(0x1000);
a_a = byte_read(0x1060);
}
/**************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
}
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF; //依次打开各位
Delay_ms(1); //延时
P2 = 0xEF;
Delay_ms(1);
P2 = 0xFB;
Delay_ms(1);
P2 = 0xFE;
Delay_ms(1);
P2 = 0xFF; //关闭显示
}
//显示重量,单位kg,两位整数,三位小数
void Display_Weight()
{
P0 = LEDData[Weight_Shiwu%10]; //
P2 = ~0xBF; //打开位
Delay_ms(1); //延时
P2 = ~0xff; //关闭显示
P0=LEDData[Weight_Shiwu%100/10]; //显示个位
P2 = ~0xEF;
Delay_ms(1);
P2 = ~0xff; //关闭显示
P0 =LEDData[Weight_Shiwu%1000/100]; //显示十位
P2 = ~0xFB;
Delay_ms(1);
P2 = ~0xff; //关闭显示
P0 =LEDData[Weight_Shiwu%10000/1000]; //显示百位
DIAN = 0; //显示小数点
P2 = ~0xFE;
Delay_ms(1);
P2 = ~0xff; //关闭显示
}
//定时器0初始化
void Timer0_Init()
{
ET0 = 1; //允许定时器0中断
TMOD = 1; //定时器工作方式选择
TH0 = 0xb0;
TL0 = 0x3c; //定时器赋予初值
TR0 = 1; //启动定时器
}
//定时器0中断
void Timer0_ISR (void) interrupt 1 using 0
{
unsigned char Counter;
TH0 = 0xb0;
TL0 = 0x3c; //定时器赋予初值
//每0.5秒钟刷新重量
Counter ++;
if (Counter >= 10)
{
FlagTest = 1;
Counter = 0;
}
}
void KeyPress()
{
if(ROW1==0) //去皮键
{
Display_Weight();
if(ROW1==0)
{
if(qupi==0)
qupi=Weight_Shiwu;
else
qupi=0;
Buzzer=1;
for(p=0;p<10;p++)
Display_Weight();
Buzzer=0;
while(ROW1==0) Display_Weight();
}
}
if(ROW2==0) //加
{
Display_Weight();
if(ROW2==0)
{
while(!ROW2)
{
key_press_num++;
if(key_press_num>=100)
{
key_press_num=0;
while(ROW2)
{
if(GapValue<10000)
GapValue+=10;
Buzzer=0;
for(p=0;p<2;p++)
Display_Weight();
Buzzer=1;
for(p=0;p<2;p++)
Display_Weight();
Get_Weight();
}
}
Display_Weight();
Delay_ms(8);
}
if(key_press_num==0)
{
key_press_num=0;
if(GapValue>10000)
GapValue++;
Buzzer=0;
for(p=0;p<10;p++)
Display_Weight();
Buzzer=1;
}
write_eeprom();
}
}
if(ROW3==0) //减
{
Display_Weight();
if(ROW3==0)
{
while(ROW3)
{
key_press_num++;
if(key_press_num>=100)
{
key_press_num=0;
while(ROW3)
{
if(GapValue>1)
GapValue-=10;
Buzzer=0;
for(p=0;p<2;p++)
Display_Weight();
Buzzer=1;
for(p=0;p<2;p++)
Display_Weight();
Get_Weight();
}
}
Display_Weight();
Delay_ms(8);
}
if(key_press_num!=0)
{
key_press_num=0;
if(GapValue>1)
GapValue--;
Buzzer=0;
for(p=0;p<10;p++)
Display_Weight();
Buzzer=1;
}
write_eeprom(); //保存数
}
}
}
//****************************************************
//主函数
//****************************************************
void main()
{
init_eeprom(); //开始初始化保存的数据
EA = 0;
Timer0_Init();
//初中始化完成,开断
EA = 0;
Get_Maopi();
while(1)
{
//每0.5秒称重一次
if (FlagTest==1)
{
Get_Weight();
FlagTest = 0;
}
if(flag_cz==1)
Disp_init();
else
Display_Weight();
KeyPress();
}
}
//****************************************************
//称重
//****************************************************
void Get_Weight()
{
Weight_Shiwu = HX711_Read();
Weight_Shiwu = Weight_Shiwu - Weight_Maopi; //获取净重
Weight_Shiwu = (unsigned int)((float)(Weight_Shiwu*10)/GapValue)-qupi; //计算实物的实际重量
if(Weight_Shiwu <= 10000) //超重报警
{
Buzzer = !Buzzer;
LED=!LED;
flag_cz=0;
}
else
{
if(Weight_Shiwu==0)
LED=0;
else if(Weight_Shiwu>0)
LED=1;
Buzzer = 1;
flag_cz=0;
}
}
//****************************************************
//获取毛皮重量
//****************************************************
void Get_Maopi()
{
unsigned char clear,f;
Weight_Maopi_0 = HX711_Read();
for(clear=0;clear<10;clear++)
{
Buzzer=1;
LED=0;
for(f=0;f<40;f++)
Disp_init();
LED=1;
for(f=0;f<40;f++)
Disp_init();
}
mm: Weight_Maopi = HX711_Read();
if((Weight_Maopi*10)/GapValue!=(Weight_Maopi_0*100)/GapValue)
goto mm;
Buzzer=0;
for(f=0;f<10;f++)
Disp_init();
Buzzer=1;
}
//****************************************************
//MS延时函数(12M晶振下测试)
//****************************************************
void Delay_ms(unsigned int n)
{
unsigned int i,j;
for(i=0;i<n;i++)
for(j=0;j<121;j++);
}
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