📄 systhree.c
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/*********************************************************/
/** **/
/** 作者：jia **/
/** 时间：2007/6/6 **/
/** National University of Defence Technology **/
/** 0731-4573493 **/
/*********************************************************/
#include <absacc.h>
#include <reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint8 unsigned char
#define uint16 unsigned int
#define LED8 XBYTE [0xA000] //数码管地址
#define LED7 XBYTE [0xA001]
#define LED6 XBYTE [0xA002]
#define LED5 XBYTE [0xA003]
#define LED4 XBYTE [0xA004]
#define LED3 XBYTE [0xA005]
#define LED2 XBYTE [0xA006]
#define LED1 XBYTE [0xA007]
#define YD_INTERNAL 5
#define KEY XBYTE [0xA100] //键盘地址
/*扫描键盘使用的变量 */
sbit first_row = P1^4; //键盘第一行控制
sbit second_row = P1^3; //键盘第二行控制
bit first_getkey = 0,control_readkey = 0; //读键盘过程中的标志位
bit getkey = 0; //获得有效键值标志位 等于1时代表得到一个有效键值
bit keyon = 0; //防止按键冲突标志位
uchar keynum = 0; //获得的有效按键值寄存器
uchar T2count = 0;
bit MotorStart=0; //启动电机控制
sbit MotorForward = P1^0;
sbit MotorBack = P1^1;
sbit P1_2 = P1^2; // 外接蜂鸣器报警
sbit P1_6 = P1^6; // #RE
sbit P1_7 = P1^7; // DE MAX487 发送前7置1，接受前6\7置0
sbit P1_5 = P1^5; // 液滴调试用
uchar Vset = 255;
uchar Vnow = 75;
uint16 MotorTimer = 100 ;
uint16 circle = 0;
uint16 Vnow100 = 7500;
uchar NOset = 16; //设置的从站号
// 系数
#define COEF 105 //&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
#define HEIGHT0 100 // 初始高度1m，系数1.67
#define V_INITIAL0 78 // 初始液滴速度 78 t/min
#define MotorV 137 // 电机速度，50cm/s 86cm/63s
#define CIRCLE 20
uchar state = 0 ;
bit alarm =0;
bit direction=0;// 0 represent move down
uint16 temV = 0;
uint16 num =0;
uchar icount[6] = {0} ;
uint16 i = 0;
uchar vh =0;
uchar vl =0;
uint16 HMove;
uchar num_yt=0;
uchar num_yd_actual=0;
/*数码管显示使用的变量和常量*/
uchar lednum = 0; //数码管显示位控制寄存器
uchar led[8] = {0,0,0,0,0,0,0,0}; //数码管显示内容寄存器
uchar code segtab[18] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0x8c,0xff}; //七段码段码表
// "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "P" ,"black"
void leddisp(void); //数码管显示函数
void readkey(void); //读键盘函数
void setvalue (unsigned char keynum);
void delay(uint8 time_nop);
void SetMotorTimeT2();
void sendBuf();
//************************************************************************************************
//***********************************************************************************************
//定时器T0是用方式三，低八位用来定时4ms，LED 显示和键盘扫描
void intTL0() interrupt 1 //TL0 定时中断处理函数
{
static uchar TL0_i = 0; // 定义静态变量，用来计数TL0定时器的溢出次数（进入本函数的次数）
static uchar TL0_j = 0; // 定义静态变量，用来计数intr1定时器的延迟（进入本函数的次数）
TL0 = -2720%256;
if(TL0_i++ == 11)//定时器中断时间间隔 4ms
{
TL0_i = 0;
leddisp(); //每次定时中断显示更新一次
if(EX1 == 0 && TL0_j++ >= YD_INTERNAL)
{
EX1 = 1;
TL0_j = 0;
}
if(control_readkey == 1) //每两次定时中断扫描一次键盘
{
readkey();
}
control_readkey = !control_readkey;
if(MotorStart==1)
{
if(T2count == MotorTimer || Vnow>=Vset-2 && Vnow<=Vset+2) //|| Vnow>Vset-5 && Vnow<Vset+5
{
MotorStart=0;
MotorForward=0;
MotorBack=0;
T2count=0;
Vnow=Vset;
Vnow100 = 100*Vnow;
}
else
{
if(Vset >= Vnow) direction = 1;
else direction = 0;
if(!direction)
{
MotorBack=1;
MotorForward=0;
}
else
{
MotorForward=1;
MotorBack=0;
}
}
}
else
{
MotorStart=0;
MotorForward=0;
MotorBack=0;
T2count=0;
}
}
}
//*************************************外部中断1*************************************************************
//*****************************************************************************************************************************
// 点滴信号检测，置P1_5口为1，触发发光二极管点亮一段时间
// 外部中断1，用来接收LM567音频锁相环的点滴信号（低电平）
// 内置计数器，根据定时器T0定时中断，计数后放入icount[i]数组
void intr1_serve (void )interrupt 2
{
//static uchar intr1_i = 0;
EX1 = 0;
P1_5 = ~ P1_5;
num_yt+=1;
num_yd_actual=num_yt/2;
}
//************************************************************************************************
//*************************************外部中断0*************************************************************
//*****************************************************************************************************************************
void intr0_serve (void )interrupt 0
{
alarm = 1;
}
//************************************************************************************************
//*****************************************************************************************************************************
// 由于T0采用工作方式3，所以T1只能用作串口波特率发生器
// 注意：从站Fsoc=12MHz，主站Fsoc=24MHz，只需将波特率设置相同即可
// 此时，TH0占用TF1，所以此中断处理程序是处理T0的TH0的，定时器T0占用TF1,相当于T1中断
// 最大定时周期为256us
void time2_serve (void)interrupt 5
{
static uchar Vn100 = 0;
static uchar T2_i = 0; // 定义静态变量，用来计数TL0定时器的溢出次数（进入本函数的次数）
static uchar j = 0;
static uchar test_circle = 0;
TF2 = 0;
if( T2_i++ == 8 ) //0.5S
{
T2_i = 0 ;
T2count++ ;
if( test_circle++ == 20 ) // total count to 10s
{
// 把外部跳变数发到icount[i]
icount[i%6]=num_yd_actual;
i++;
// 将外部中断计数清0
num_yd_actual=0;
test_circle = 0;
}
// 每十秒更新一次速度
if(i>=6)
{
Vnow=0;
Vnow100=0;
for(j=0;j<6;j++)
{
Vnow+=icount[(i-j)%6];
Vnow100 = 100*Vnow;
}
if(i==6)
vh=Vnow;
if(i==12)
vl=Vnow;
}
}
if( Vn100++ == 16 )
{
Vn100 = 0;
if(direction == 0 && MotorStart==1)
{
Vnow100 -= 131;
}
else if (direction == 1 && MotorStart==1)
{
Vnow100 += 131;
}
}
}
//*****************************************************************************************************************************
//*****************************************************************************************************************************
// end of time1
//**************************************************************************************************
//************************************************************************************************
void ps_serve (void )interrupt 4
{
static wait = 0;
if(RI == 1)
{
uchar a = 0,b = 0;
P1_6 = 0;
P1_7 = 0;
a = SBUF;
P1_7 = 1;
b = a & 0x0F;
RI = 0;
if(a >= 192 && b == NOset)
{
sendBuf();
wait = 1;
if( a >= 208)
alarm =0;
}
else
{
if(wait == 1)
{
if(a>=20 && a<=150)
{
Vset = a;
SetMotorTimeT2();
}
P1_7 = 1;
SBUF = Vnow100/100;
P1_6 = 0;
P1_7 = 0;
wait = 0;
}
}
}
else TI = 0;
}
//**************************************************************************************************
void main(void)
{
TMOD = 0x01; //
TL0 = -2720%256; //定时器中断时间间隔 4ms
TCON = 0x00;
TMOD = 0X23;
TH1=244;
TL1=244;
SCON=0x50;//串口方式1，允许接受
RCAP2H=0x0B;
RCAP2L=0xDC;
PT2 = 1;
ES = 1;
ET0 = 1;
ET1 = 0;
ET2= 1;
EX0 = 1;
EX1 = 1;
EA = 1;
TR0 =1;
TR1 =1;
TR2 = 1;
MotorForward=0;
MotorBack=0;
P1_2 = 0;
P1_5 =0;
P1_6 =0;
P1_7 =0;
while(1)
{
// if(getkey == 1) //判断是否获得有效按键
{
getkey = 0;
led[0]=NOset;
led[1]=Vset/100;
led[2]=(Vset%100)/10;
led[3]=Vset%10;//更新缓冲区各位的应该显示的数字
// led[5]=Vnow100/10000;
// led[6]=((Vnow100/100)%100)/10;
// led[7]=(Vnow100/100)%10;
led[5]=num_yd_actual/100;
led[6]=((num_yd_actual)%100)/10;
led[7]=(num_yd_actual)%10;
if(alarm == 1) led[4] = 16;
else led[4] = 17;
}
}
}
/***************************************************
键盘扫描函数
原型: void readkey(void);
功能: 当获得有效按键时,令getkey=1，keynum为按键值
****************************************************/
void readkey(void)
{
uchar M_key = 0;
first_row = 0;
second_row = 0;
M_key = KEY;
if(M_key != 0xff) //如果有连续两次按键按下，认为有有效按键按下。消除按键抖动
{
if(first_getkey == 0)
{
first_getkey = 1;
}
else //当有有效按键按下时，进一步识别是哪一个按键
{
if(keyon == 0) //防止按键冲突，当还有未释放的按键时不对其它按键动作响应
{
first_row = 0; //扫描第一行按键
second_row = 1;
M_key = KEY;
if(M_key != 0xff)
{
switch(M_key)
{
case 0xfe:
keynum = 0x00;
break;
case 0xfd:
keynum = 0x01;
break;
case 0xfb:
keynum = 0x02;
break;
case 0xf7:
keynum = 0x03;
break;
case 0xef:
keynum = 0x04;
break;
case 0xdf:
keynum = 0x05;
break;
case 0xbf:
keynum = 0x06;
break;
case 0x7f:
keynum = 0x07;
break;
}
}
else
{
second_row = 0; //扫描第二行按键
first_row = 1;
M_key = KEY;
switch(M_key)
{
case 0xfe:
keynum = 0x08;
break;
case 0xfd:
keynum = 0x09;
break;
case 0xfb:
keynum = 0x0a;
break;
case 0xf7:
keynum = 0x0b;
break;
case 0xef:
keynum = 0x0c;
break;
case 0xdf:
keynum = 0x0d;
break;
case 0xbf:
keynum = 0x0e;
break;
case 0x7f:
keynum = 0x0f;
break;
}
}
getkey = 1; //获得有效按键数值
keyon = 1; //防止按键冲突，当获得有效按键时将其置1
setvalue (keynum);
}
}
}
else
{
first_getkey = 0;
keyon = 0; //防止按键冲突，当所有的按键都释放时将其清0
}
}
/***************************************************
数码管显示函数
原型: void leddisp(void);
功能: 每次调用轮流显示一位数码管
****************************************************/
void leddisp(void)
{
switch(lednum) //选择需要显示的数码位
{
case 0:
LED1 = segtab[led[0]];
break;
case 1:
LED2 = segtab[led[1]];
break;
case 2:
LED3 = segtab[led[2]];
break;
case 3:
LED4 = segtab[led[3]];
break;
case 4:
LED5 = segtab[led[4]];
break;
case 5:
LED6 = segtab[led[5]];
break;
case 6:
LED7 = segtab[led[6]];
break;
case 7:
LED8 = segtab[led[7]];
break;
}
if(lednum == 0) //更新需要现实的数码位
{
lednum = 7;
}
else
{
lednum = lednum-1;
}
}
/*******************************************************************
延时函数
函数原型: void delay(uint8 time_nop);
功能: 延时time_nop个nop
********************************************************************/
void delay(uint8 time_nop)
{
uint8 i;
for(i=0;i<time_nop;i++)
{
_nop_();
}
}
void setvalue (unsigned char keynum) {
if(state == 0 && keynum == 10) state = 1;
else if(state == 1 ) { NOset = keynum ;state = 2 ; }
else if(state == 2 && keynum >= 0 && keynum <= 9 )
{
state = 2 ;
temV = temV*10 + keynum;
}
else if(state == 2 && keynum ==13 )
{
if(temV>150 || temV<20)
Vset=255;
else
{
Vset = temV;
SetMotorTimeT2();
}
temV = 0;state = 0 ;
}
else {state = 0; temV = 0 ;}
if(state != 1 && keynum == 14) alarm = 0;
if(state != 1 && keynum == 15) alarm = 1;
if(state != 1 && keynum == 12) {
num = 0;
i = 0;
vh = 0;
vl = 0;
icount[0]= 0; icount[1]= 0;icount[2]= 0;icount[3]= 0;icount[4]= 0;icount[5]= 0;
}
}
void SetMotorTimeT2()
{
if(Vset >= Vnow) { direction = 1; HMove =(Vset-Vnow); }
else {direction = 0; HMove = (Vnow-Vset); }
HMove = HMove*COEF;
MotorTimer = HMove/MotorV;// S
MotorTimer = MotorTimer<<1;// S
T2count = 0;
MotorStart=1;
}
void sendBuf()
{
uchar a = 0;
if(NOset <16 )
{
a = alarm ? 16:0 ;
a += NOset;
a += 192;
P1_7 = 1;
SBUF = a;
P1_6 = 0;
P1_7 = 0;
}
}
/*
A \began to set celerate
B //cancle set V
C began to inital celearte testing ***********
D enter
E alarm
F cancel alarm
*/⌨️ 快捷键说明
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