基于89C51的转速测量系统设计的C语言程序.doc

附录 B 程序清单： #includereg51.h#includeintrins.h#include math.h #define uchar unsigned char#define uint unsigned int#define ulong unsigned long sbit key0=P3^0;//按键0sbit key1=P3^1;//按键1sbit key2=P3^;//按键2sbit led0=P1^0;//数码管0sbit led1=P1^1;//数码管1sbit led2=P1^2;//数码管2sbit led3=P1^3;//数码管3sbit scl=P1^6;//24c02scl端sbit sda=P1^5;//24c02scd端sbit out=P1^7;//输出端sbit in=P3^2;//输入 code uchar ascled[12]={0x3f,0x06,0x5b,0x4f,0x66, //0,1,2,3,40x6d,0x7d,0x07,0x7f,0x6f, //5,6,7,8,90x71,0x00};?????????????? //F,＇＇ /*****************函数列表**********************/uchar x24c02_read(uchar addr); //从24c02的地址addr中读取一个字节数据void x24c02_write(uchar addr,uchar info); //向24c02的addr地址中写入一字节数据infovoid x24c02_init();?? //24c02初始化子程序void delay(uchar x);//延时子程序msvoid flash();//24c02延时子程序nopvoid start();//24c02ic开始void stop();//24c02ic停止void ack();//24c02ic应答void nack();//24c02ic不应答void writex(uchar j);//24c02ic写1byte数据void dsp();//显示子程序void delay(uchar i);//us延时void delay1(uchar i);//us延时uchar readx();//24c02ic读1byte数据/****************全局变量定义*******************/uchar ktemp;uchar disp[4]; uint count;//预设报警值uint zs;//转速值uint time0;//uint time1;//记时器bit begin1;//T1开始启动标志uchar ltj=1;//高低速uint js;//脉冲计数器ulong t0;ulong t1; bit key_set;//设置标志uchar disp_i[4];//显示闪动标志uint disp_c;//闪动显示计数器//借用time0uint disp_j;//闪动显示定时//借用time1bit ss=0;//闪动标志uint bj;//报警输出信号定时bit en_bj=0;//允许报警标志bit bjing=0;//报警中 //m:菜单级数 mi:参数标号 bh:检测保护时间1-10uchar bh=0;uchar m=0,mi=0;//借用zs,jsuchar bhtm=0;//保护检测//bit cmi=0;//参数设置改变标志//借用bjing/**********************************************/ void int_ex0() interrupt 0 using 0{/*外部中断0*/delay1(20);if(key_set==0){///0 非设置状态if(in==0){if(ltj==1)??? {js++;????? EA=0;????? TR0=0;????? TL0=0xaf; //50ms????? TH0=0x3c;????? /*计数初值重装*/????? if(begin1==0)??????? { //开始记数????? begin1=1;????? js=0;????? TR1=0;????? TL1=0xaf; //50ms????????? TH1=0x3c;????? /*计数初值重装*/ ????????? TR1=1;?????????? /*启动T1*/ ??? }???????? /*启动T0*/ ????? TR0=1; ?