新人求助，求基于单片机控制的数字气压计程序

2019-07-15 19:54发布

在网上找到了段程序，但是有点问题，缺少key的头文件，求大神帮忙，谢谢！
课题是基于单片机控制的数字气压计，单片机是STC80C52或AT89S52，传感器BMP085，显示器LCD1602 要求：1.LCD显示当前气压和气压报警值，超过报警值，蜂鸣器响，LED灯亮 2.按下S1，恢复初始报警值，按下S2进入报警值设置，按下S3设置报警值+1.按下S 4设置报警值-1，再按下S2，退出报警值设置，LED正常显示参考程序：#include <REG51.H> #include <math.h> //Keil library #include <stdlib.h> //Keil library #include <stdio.h> //Keil library #include <INTRINS.H>//Keil library #include <key.h>#define uchar unsigned char#define uint unsigned int #define DataPort P0 //LCD1602数据端口sbit SCL=P3^6; //IIC时钟引脚定义sbit SDA=P3^7; //IIC数据引脚定义sbit LCM_RS=P2^5; //LCD1602命令端口 sbit LCM_RW=P2^6; //LCD1602命令端口 sbit LCM_EN=P2^7; //LCD1602命令端口 sbit BEEP=P3^4; //定义蜂鸣器 #define BMP085_SlaveAddress 0xee //定义器件在IIC总线中的从地址 #define OSS 0 // Oversampling Setting (note: code is not set up to use other OSS values) typedef unsigned char BYTE;typedef unsigned short WORD; uchar ge,shi,bai,qian,wan,shiwan; //显示变量int dis_data; //变量bit beep_st; //蜂鸣器间隔标志uchar x=0; //计数器short ac1;short ac2; short ac3; unsigned short ac4;unsigned short ac5;unsigned short ac6;short b1; short b2;short mb;short mc;short md; void delay(unsigned int k);void InitLcd(); //初始化lcd1602 void WriteDataLCM(uchar dataW);void WriteCommandLCM(uchar CMD,uchar Attribc);void DisplayOneChar(uchar X,uchar Y,uchar DData);void conversion(long temp_data); void Single_Write(ucharSlaveAddress,uchar REG_Address,uchar REG_data); //单个写入数据uchar Single_Read(uchar REG_Address); //单个读取内部寄存器数据void Multiple_Read(uchar,uchar); //连续的读取内部寄存器数据//------------------------------------void Delay5us();void Delay5ms();void BMP085_Start();void BMP085_Stop();void BMP085_SendACK(bit ack);bit BMP085_RecvACK();void BMP085_SendByte(BYTE dat);BYTE BMP085_RecvByte();void BMP085_ReadPage();void BMP085_WritePage();//-----------------------------------void InitTimer(void){TMOD=0x1;TH0=0x4c;TL0=0x00; //50ms（晶振11.0592M）EA=1; //全局中断开关TR0=1;ET0=1; //开启定时器0}/*****定时器0中断服务程序*****/void timer0(void) interrupt 1{TH0=0x4c;TL0=0x00;x++;}void conversion(long temp_data) { shiwan=temp_data/100000+0x30; temp_data=temp_data%100000; //取余运算 wan=temp_data/10000+0x30 ; temp_data=temp_data%10000; //取余运算 qian=temp_data/1000+0x30 ; temp_data=temp_data%1000; //取余运算 bai=temp_data/100+0x30 ; temp_data=temp_data%100; //取余运算 shi=temp_data/10+0x30 ; temp_data=temp_data%10; //取余运算 ge=temp_data+0x30; } /*******************************/void delay(unsigned int k) { unsigned int i,j; for(i=0;i<k;i++){ for(j=0;j<121;j++) {;}} }unsigned char rolmove(unsigned char m) { unsigned char a,b,c,d,e,f,g,h; a=(m&0x01)<<7;b=(m&0x02)<<5;c=(m&0x04)<<3; d=(m&0x08)<<1;e=(m&0x10)>>1;f=(m&0x20)>>3;g=(m&0x40)>>5;h=(m&0x80)>>7;m=a|b|c|d|e|f|g|h; return m; }/*******************************/void WaitForEnable(void) { DataPort=0xff; LCM_RS=0;LCM_RW=1;_nop_();LCM_EN=1;_nop_();_nop_();while(rolmove(DataPort)&0x80); LCM_EN=0; } /*******************************/void WriteCommandLCM(uchar CMD,uchar Attribc){ if(Attribc)WaitForEnable(); LCM_RS=0;LCM_RW=0;_nop_();DataPort=rolmove(CMD);_nop_(); LCM_EN=1;_nop_();_nop_();LCM_EN=0;} /*******************************/void WriteDataLCM(uchar dataW){ WaitForEnable(); LCM_RS=1;LCM_RW=0;_nop_();DataPort=rolmove(dataW);_nop_(); LCM_EN=1;_nop_();_nop_();LCM_EN=0;} /***********************************/void InitLcd() { WriteCommandLCM(0x38,1); WriteCommandLCM(0x08,1); WriteCommandLCM(0x01,1); WriteCommandLCM(0x06,1); WriteCommandLCM(0x0c,1);} /***********************************/void DisplayOneChar(uchar X,uchar Y,uchar DData){ Y&=1; X&=15; if(Y)X|=0x40; X|=0x80; WriteCommandLCM(X,0); WriteDataLCM(DData); } void Delay5us(){ _nop_();_nop_();_nop_();_nop_(); _nop_();_nop_();_nop_();_nop_(); _nop_();_nop_();_nop_();_nop_(); _nop_();_nop_();_nop_();_nop_();}void Delay5ms(){ WORD n = 560; while (n--);} /**************************************起始信号**************************************/void BMP085_Start(){ SDA = 1; //拉高数据线 SCL = 1; //拉高时钟线 Delay5us(); //延时 SDA = 0; //产生下降沿 Delay5us(); //延时 SCL = 0; //拉低时钟线} /**************************************停止信号**************************************/void BMP085_Stop(){ SDA = 0; //拉低数据线 SCL = 1; //拉高时钟线 Delay5us(); //延时 SDA = 1; //产生上升沿 Delay5us(); //延时}void BMP085_SendACK(bit ack){ SDA = ack; //写应答信号 SCL = 1; //拉高时钟线 Delay5us(); //延时 SCL = 0; //拉低时钟线 Delay5us(); //延时} /**************************************接收应答信号**************************************/bit BMP085_RecvACK(){ SCL = 1; //拉高时钟线 Delay5us(); //延时 CY = SDA; //读应答信号 SCL = 0; //拉低时钟线 Delay5us(); //延时 return CY;} /**************************************向IIC总线发送一个字节数据**************************************/void BMP085_SendByte(BYTE dat){ BYTE i; for (i=0; i<8; i++) //8位计数器 { dat <<= 1; //移出数据的最高位 SDA = CY; //送数据口 SCL = 1; //拉高时钟线 Delay5us(); //延时 SCL = 0; //拉低时钟线 Delay5us(); //延时 } BMP085_RecvACK();} /**************************************从IIC总线接收一个字节数据**************************************/BYTE BMP085_RecvByte(){ BYTE i; BYTE dat = 0; SDA = 1; //使能内部上拉,准备读取数据, for (i=0; i<8; i++) //8位计数器 { dat <<= 1; SCL = 1; //拉高时钟线 Delay5us(); //延时 dat |= SDA; //读数据 SCL = 0; //拉低时钟线 Delay5us(); //延时 } return dat;}//读出BMP085内部数据,连续两个short Multiple_read(uchar ST_Address){ uchar msb, lsb; short _data; BMP085_Start(); //起始信号 BMP085_SendByte(BMP085_SlaveAddress); //发送设备地址+写信号 BMP085_SendByte(ST_Address); //发送存储单元地址 BMP085_Start(); //起始信号 BMP085_SendByte(BMP085_SlaveAddress+1); //发送设备地址+读信号 msb = BMP085_RecvByte(); //BUF[0]存储 BMP085_SendACK(0); //回应ACK lsb = BMP085_RecvByte(); BMP085_SendACK(1); //最后一个数据需要回NOACK BMP085_Stop(); //停止信号 Delay5ms(); _data = msb << 8; _data |= lsb; return _data;}long bmp085ReadTemp(void){ BMP085_Start(); //起始信号 BMP085_SendByte(BMP085_SlaveAddress); //发送设备地址+写信号 BMP085_SendByte(0xF4); // write register address BMP085_SendByte(0x2E); //write register data for temp BMP085_Stop(); //发送停止信号 delay(10); // max time is 4.5ms return (long)Multiple_read(0xF6);}long bmp085ReadPressure(void){ long pressure = 0; BMP085_Start(); //起始信号 BMP085_SendByte(BMP085_SlaveAddress); //发送设备地址+写信号 BMP085_SendByte(0xF4); // write register address BMP085_SendByte(0x34); // write register data for pressure BMP085_Stop(); //发送停止信号 delay(10); // max time is 4.5ms pressure =Multiple_read(0xF6); pressure &= 0x0000FFFF; return pressure; //return (long)bmp085ReadShort(0xF6);}//初始化BMP085 void Init_BMP085(){ ac1 = Multiple_read(0xAA); ac2 = Multiple_read(0xAC); ac3 = Multiple_read(0xAE); ac4 = Multiple_read(0xB0); ac5 = Multiple_read(0xB2); ac6 = Multiple_read(0xB4); b1 = Multiple_read(0xB6); b2 = Multiple_read(0xB8); mb = Multiple_read(0xBA); mc = Multiple_read(0xBC); md = Multiple_read(0xBE);}void bmp085Convert(){ long ut; long up; long x1, x2, b5, b6, x3,b3, p; unsigned long b4, b7; long temperature; long pressure; ut = bmp085ReadTemp(); ut = bmp085ReadTemp(); // 读取温度 up = bmp085ReadPressure(); up =bmp085ReadPressure(); // 读取压强 x1 = ((long)ut - ac6) * ac5>> 15; x2 = ((long) mc <<11) / (x1 + md); b5 = x1 + x2; temperature = (b5 + 8) >> 4; conversion(shangxian);//显示报警值 DisplayOneChar(4,1,'V'); DisplayOneChar(5,1,':'); DisplayOneChar(6,1,shiwan); DisplayOneChar(7,1,wan); DisplayOneChar(8,1,qian); DisplayOneChar(9,1,'.'); DisplayOneChar(10,1,bai); DisplayOneChar(11,1,shi); DisplayOneChar(12,1,'K'); //气压单位 DisplayOneChar(13,1,'p'); DisplayOneChar(14,1,'a'); b6 = b5 - 4000; x1 = (b2 * (b6 * b6>> 12)) >> 11; x2 = ac2 * b6 >> 11; x3 = x1 + x2; b3 = (((long)ac1 * 4 + x3)+ 2)/4; x1 = ac3 * b6 >> 13; x2 = (b1 * (b6 * b6>> 12)) >> 16; x3 = ((x1 + x2) + 2)>> 2; b4 = (ac4 * (unsigned long)(x3 + 32768)) >> 15; b7 = ((unsigned long) up -b3) * (50000 >> OSS); if( b7 < 0x80000000) p = (b7 * 2) / b4 ; else p = (b7 / b4) * 2; x1 = (p >> 8) * (p>> 8); x1 = (x1 * 3038) >>16; x2 = (-7357 * p) >>16; pressure = p + ((x1 + x2 + 3791) >> 4);if(x>=2){beep_st=~beep_st;x=0;}if(pressure>shangxian&&beep_st==1)BEEP=1;else BEEP=0; conversion(pressure); DisplayOneChar(4,0,'P'); //显示压强 DisplayOneChar(5,0,':'); DisplayOneChar(6,0,shiwan); DisplayOneChar(7,0,wan); DisplayOneChar(8,0,qian); DisplayOneChar(9,0,'.'); DisplayOneChar(10,0,bai); DisplayOneChar(11,0,shi); DisplayOneChar(12,0,'K'); //气压单位 DisplayOneChar(13,0,'p'); DisplayOneChar(14,0,'a'); }//******主程序********void main(){ delay(50); //上电延时 InitLcd(); //液晶初始化 Init_BMP085(); //初始化BMP085 BEEP=0;InitTimer(); //初始化定时器 while(1) //循环 { bmp085Convert(); delay(1000); checkkey();if(set_st==0) WriteCommandLCM(0x0c,1);if(set_st==1){WriteCommandLCM(0xcb,1);WriteCommandLCM(0x0d,1); Delay1(150);} }}