基于51单片机的多功能电子秤设计.zip

#include <reg52.h> #include <intrins.h> #include <string.h> #define uchar unsigned char //宏代换，方便程序修改，提高运行效率 #define uint unsigned int //定义unit为无符号整型 bit bdata flag_key; //分配一个地址控制，存一个标志位的数据 #include "main.h" #include "LCD12864.h" #include "HX711.h" #include "keyboard.h" #include "eeprom52.h" #include "FM24W256.h" #include "uart1.h" //#include "wannianli.h" //#include "yyxp.h" unsigned long HX711_Buffer = 0; unsigned long Weight_Maopi = 0; unsigned long Weight_Maopi_0 = 0; int qupi=0; unsigned char a=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 long idata price; //单价，长整型值，单位为分 unsigned long idata danjia[8]={11,22,33,44,100,200,300,400}; unsigned char count_danjia; unsigned long idata money,total_money; //总价，长整型值，单位为分 //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更准确。 //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=P3^6; sbit SC=P3^5; sbit Buzzer = P3^7; volatile bit ClearWeighFlag = 0; //传感器调零标志位，清除0漂 unsigned int xdata Record_Num=1;//用来储存已经储存了多少组的打卡数据 储存在地址299 unsigned char xdata Record_Data[16]={'D',':','0','0','.','0',' ','Z',':','0','0','0','0','.','0','\0'}; unsigned char xdata Record_tab[16]={' ',' ','D','J',' ',' ',' ',' ',' ',' ',' ','Z','J',' ',' ',' '}; /******************把数据保存到单片机内部eeprom中******************/ void write_eeprom() { SectorErase(0x2000); 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() { LCD12864_write_com(0x88); LCD12864_write_word("单价： "); LCD12864_write_data(price/100 + 0x30); LCD12864_write_data(price%100/10 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(price%10 + 0x30); LCD12864_write_word("元"); } //显示重量，单位kg，两位整数，三位小数 void Display_Weight() { LCD12864_write_com(0x90); LCD12864_write_word("重量： "); LCD12864_write_data(' '); LCD12864_write_data(Weight_Shiwu/1000 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(Weight_Shiwu%1000/100 + 0x30); LCD12864_write_data(Weight_Shiwu%100/10 + 0x30); LCD12864_write_data(Weight_Shiwu%10 + 0x30); LCD12864_write_word("Kg"); } //显示总价，单位为元，四位整数，两位小数 void Display_Money() { // unsigned int i,j; LCD12864_write_com(0x98); //指针设置 LCD12864_write_word("总价： "); LCD12864_write_com(0x9f); //指针设置 LCD12864_write_word("元"); if (money>=1000) { LCD12864_write_com(0x9c); LCD12864_write_data(' '); LCD12864_write_data(money/1000 + 0x30); LCD12864_write_data(money%1000/100 + 0x30); LCD12864_write_data(money%100/10 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(money%10 + 0x30); } else if (money>=100) { LCD12864_write_com(0x9c); LCD12864_write_data(' '); LCD12864_write_data(0x20); LCD12864_write_data(money%1000/100 + 0x30); LCD12864_write_data(money%100/10 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(money%10 + 0x30); } else if(money>=10) { LCD12864_write_com(0x9c); LCD12864_write_data(' '); LCD12864_write_data(0x20); LCD12864_write_data(0x20); LCD12864_write_data(money%100/10 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(money%10+ 0x30); } else { LCD12864_write_com(0x9c); LCD12864_write_data(' '); LCD12864_write_data(0x20); LCD12864_write_data(0x20); LCD12864_write_data(0 + 0x30); LCD12864_write_data('.'); LCD12864_write_data(money%10 + 0x30); } } //数据初始化 void Data_Init() { price = 0;////////////////////////////////// DotPos = 0; } //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 TL0 = 0xb0; TH0 = 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 { uchar Counter; TL0 = 0xb0; TH0 = 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; } } //按键响应程序，参数是键值 //返回键值： // 7 8 9 10(清0) // 4 5 6 11(删除) // 1 2 3 12(未定义) // 14(未定义) 0 15(.) 13(确定价格) void KeyPress(uchar keycode) { switch (keycode) { case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: //目前在设置整数位，要注意price是整型，存储单位为分 if (DotPos == 0) { //最多只能设置到千位 if (price<100) { price=price*10+keycode*10; } }//目前在设置小数位 else if (DotPos==1) //小数点后第一位 { price=price+keycode; DotPos=2; } Display_Price(); break; case 10: //清零键 // speak(41); if(qupi==0) qupi=Weight_Shiwu; else qupi=0; Display_Price(); // FlagSetPrice = 0; DotPos = 0; break; case 11: //删除键，按一次删除最右一个数字 price=0; DotPos=0; Display_Price(); break; case 12: //加 if(GapValue<10000) GapValue++; // Get_Weight(); break; case 13: //减 if(GapValue>1) GapValue--; // Get_Weight(); break; case 14: if(Record_Num<100) {////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////// Record_Data[2]= price/100 +0x30; Record_Data[3]= price%100/10 +0x30; Record_Data[4]='.'; Record_Data[5]= price%10+0x30; Record_Data[9]=' '; Record_Data[10]= money/1000 + 0x30; Record_Data[11]= money%1000/100 + 0x30; Record_Data[12]=money%100/10 + 0x30; Record_Data[13]='.'; Record_Data[14]= money%10 + 0x30; // Record_Data[2]= 0x36; // Record_Data[3]= 0x35; // Record_Data[4]='.'; // Record_Data[5]= 0x35; // Record_Data[9]=' '; // Record_Data[10]= 0x35; // Record_Data[11]= 0x35; // Record_Data[12]= 0x35; // Record_Data[13]='.'; // Record_Data[14]= 0x35; SectorErase(0x8000); Delay_ms(100); byte_write(0x8000,Record_Num); Delay_ms(10); Delay_ms(10); // a=byte_read(0x8100); if(Record_Num==1) {SectorErase(0x8200); } Delay_ms(10); FM24W_WrToROM(Record_Num*16+0x8200,Record_Data,16);//储存打卡信息 Delay_ms(100); Record_Num++; SectorErase(0x8000); Delay_ms(100); byte_write(0x8000,Record_Num); Delay_ms(10); } break; case 15: //小数点按下 DotPos = 1;