簡易的引體向上計數器單片機紅外對管測數程序

ID:595800 · 發表于 2019-8-5 20:35

利用紅外對管測數，之后把數據通過lcd1602顯示出來

單片機源程序如下:

/*============================================================
/
==============================================================
SMC1602A(16*2)模擬口線接線方式
連接線圖:
---------------------------------------------------
|LCM-----51 | LCM-----51 | LCM------51 |
--------------------------------------------------|
|DB0-----P1.0 | DB4-----P1.4 | RW-------P3.4 |
|DB1-----P1.1 | DB5-----P1.5 | RS-------P3.3 |
|DB2-----P1.2 | DB6-----P1.6 | E--------P3.5 |
|DB3-----P1.3 | DB7-----P1.7 | VLCD接1K電阻到GND|
---------------------------------------------------
接線：模塊TRIG接 P2.6 ECH0 接P2.7
=============================================================*/
#include <AT89x51.H> //器件配置文件
#include <intrins.h>
#define Rin P3_7
#define LCM_RW P1_1 //定義LCD引腳
#define LCM_RS P1_0
#define LCM_E P1_5
#define LCM_Data P0
#define Key_Data P2_0 //定義Keyboard引腳
#define Key_CLK P3_2
#define Busy 0x80 //用于檢測LCM狀態字中的Busy標識
void LCMInit(void);
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
void Delay5Ms(void);
void Delay400Ms(void);
void Decode(unsigned char ScanCode);
void WriteDataLCM(unsigned char WDLCM);
void WriteCommandLCM(unsigned char WCLCM,BuysC);
void Conut(void);
unsigned char ReadDataLCM(void);
unsigned char ReadStatusLCM(void);
unsigned char code mcustudio[] ={"number:"};
unsigned char code Cls[] = {" "};
unsigned char code ASCII[10] = {'0','1','2','3','4','5','6','7','8','9'};
static unsigned char DisNum = 0; //顯示用指針
unsigned int time=0;
bit flag =0;
unsigned char disbuff[4]={ 0,0,0,0,};
unsigned long S = 0;
volatile bit FlagSucceed=0; //測量成功標志
sbit Beep=P2^0; //報警蜂鳴器
sbit LedAlarm = P2^1;
void WriteDataLCM(unsigned char WDLCM)
{
ReadStatusLCM(); //檢測忙
LCM_Data = WDLCM;
LCM_RS = 1;
LCM_RW = 0;
LCM_E = 0; //若晶振速度太高可以在這后加小的延時
LCM_E = 0; //延時
LCM_E = 1;
}
//寫指令
void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC為0時忽略忙檢測
{
if (BuysC) ReadStatusLCM(); //根據需要檢測忙
LCM_Data = WCLCM;
LCM_RS = 0;
LCM_RW = 0;
LCM_E = 0;
LCM_E = 0;
LCM_E = 1;
}
//讀數據
unsigned char ReadDataLCM(void)
{
LCM_RS = 1;
LCM_RW = 1;
LCM_E = 0;
LCM_E = 0;
LCM_E = 1;
return(LCM_Data);
}
//讀狀態
unsigned char ReadStatusLCM(void)
{
LCM_Data = 0xFF;
LCM_RS = 0;
LCM_RW = 1;
LCM_E = 0;
LCM_E = 0;
LCM_E = 1;
while (LCM_Data & Busy); //檢測忙信號
return(LCM_Data);
}
void LCMInit(void) //LCM初始化
{
LCM_Data = 0;
WriteCommandLCM(0x38,0); //三次顯示模式設置，不檢測忙信號
Delay5Ms();
WriteCommandLCM(0x38,0);
Delay5Ms();
WriteCommandLCM(0x38,0);
Delay5Ms();
WriteCommandLCM(0x38,1); //顯示模式設置,開始要求每次檢測忙信號
WriteCommandLCM(0x08,1); //關閉顯示
WriteCommandLCM(0x01,1); //顯示清屏
WriteCommandLCM(0x06,1); // 顯示光標移動設置
WriteCommandLCM(0x0F,1); // 顯示開及光標設置
}
//按指定位置顯示一個字符
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
{
Y &= 0x1;
X &= 0xF; //限制X不能大于15，Y不能大于1
if (Y) X |= 0x40; //當要顯示第二行時地址碼+0x40;
X |= 0x80; //算出指令碼
WriteCommandLCM(X, 1); //發命令字
WriteDataLCM(DData); //發數據
}
//按指定位置顯示一串字符
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)
{
unsigned char ListLength;
ListLength = 0;
Y &= 0xFE;
X &= 0xFF; //限制X不能大于15，Y不能大于1
while (DData[ListLength]>0x19) //若到達字串尾則退出
{
if (X <= 0xF) //X坐標應小于0xF
{
DisplayOneChar(X, Y, DData[ListLength]); //顯示單個字符
ListLength++;
X++;
}
}
}
//5ms延時
void Delay5Ms(void)
{
unsigned int TempCyc = 5552;
while(TempCyc--);
}
//400ms延時
void Delay400Ms(void)
{
unsigned char TempCycA = 5;
unsigned int TempCycB;
while(TempCycA--)
{
TempCycB=7269;
while(TempCycB--);
};
}
/********************************************************/
void Conut(void)
{
time=TH0*256+TL0;
TH0=0;
TL0=0;
S+=1; //算出來是
Beep = 0;
if((S>=1000)||flag==1) //超出測量范圍顯示“-”
{
flag=0;
DisplayOneChar(0, 1, ASCII[0]);
DisplayOneChar(1, 1, ASCII[1]);
DisplayOneChar(2, 1, ASCII[2]);
}
else
{
disbuff[0]=S/100%10;
disbuff[1]=S/10%10;
disbuff[2]=S%10;
DisplayOneChar(0, 1, ASCII[disbuff[0]]);
DisplayOneChar(1, 1, ASCII[disbuff[1]]);
DisplayOneChar(2, 1, ASCII[disbuff[2]]);
}
}
/********************************************************/
void zd0() interrupt 1 //T0中斷用來計數器溢出,超過測距范圍
{
flag=1; //中斷溢出標志
}
/********************************************************/
void StartModule() //啟動模塊
{
Rin=0; //啟動一次模塊
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
Rin=1;
}
/********************************************************/
void delayms(unsigned int ms)
{
unsigned char i=100,j;
for(;ms;ms--)
{
while(--i)
{
j=10;
while(--j);
}
}
}
/*********************************************************/
void main(void)
{
unsigned char TempCyc;
LedAlarm = 1;
Delay400Ms(); //啟動等待，等LCM講入工作狀態
LCMInit(); //LCM初始化
Delay5Ms(); //延時片刻(可不要)
DisplayListChar(0, 0, mcustudio);
ReadDataLCM();//測試用句無意義
for (TempCyc=0; TempCyc<10; TempCyc++)
Delay400Ms(); //延時
while(1)
{
StartModule();
DisplayOneChar(0, 1, ASCII[0]);
while(!Rin); //當RX為零時等待
TR0=0; //關閉計數
Conut(); //計算
Beep = 1;
delayms(80); //80MS
while(Rin); //當RX為1計數并等待
EA=0;
//以下為一次檢測過程；先發出Trin電平，打開外部中斷，清零T1
//最后在外部中斷下降沿觸發時取出T1當前值，計算出Trig脈沖寬度
TR0=1; //開啟計數
Beep = 0;
}
}