本帖最后由 a13995960 于 2017-6-6 15:40 編輯
1602 超聲波測(cè)距的,代碼在下面
問(wèn)題是1602 是顯示兩個(gè)數(shù)據(jù),但是只有一個(gè)超聲波模塊可以用,測(cè)出來(lái)的結(jié)果也是相同的,不知道錯(cuò)在哪= =
#include <reg52.H> //器件配置文件#include <intrins.h>sbit P2_6=P2^6;sbit P2_5=P2^5;sbit P2_7=P2^7;sbit P1_1=P1^1;sbit P1_2=P1^2;sbit P3_2=P3^2;sbit P2_0=P2^0;sbit P1_3=P3^6;sbit P1_4=P3^7;#define RX1 P1_1#define TX1 P1_2 #define RX P1_3#define TX P1_4 #define LCM_RW P2_6 //定義LCD引腳#define LCM_RS P2_5#define LCM_E P2_7#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(cè)LCM狀態(tài)字中的Busy標(biāo)識(shí) 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); unsigned char ReadDataLCM(void);unsigned char ReadStatusLCM(void);unsigned char code mcustudio[] ={"C1:" } ;unsigned char code mcustudio1[] ={"C2:" } ;unsigned char code ASCII[15] = {'0','1','2','3','4','5','6','7','8','9','.','-','M'}; static unsigned char DisNum = 0; //顯示用指針unsigned int time=0,time1=0;unsigned long S=0,S1;bit flag =0,flag1=0;unsigned char disbuff[4] ={ 0,0,0,0,}; //寫數(shù)據(jù)void WriteDataLCM(unsigned char WDLCM){ReadStatusLCM(); //檢測(cè)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(shí)LCM_E = 0; //延時(shí)LCM_E = 1;} //寫指令void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC為0時(shí)忽略忙檢測(cè){if (BuysC) ReadStatusLCM(); //根據(jù)需要檢測(cè)忙LCM_Data = WCLCM;LCM_RS = 0;LCM_RW = 0;LCM_E = 0;LCM_E = 0;LCM_E = 1;} //讀數(shù)據(jù)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(tài)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(cè)忙信號(hào)return(LCM_Data);} void LCMInit(void) //LCM初始化{LCM_Data = 0;WriteCommandLCM(0x38,0); //三次顯示模式設(shè)置，不檢測(cè)忙信號(hào)Delay5Ms();WriteCommandLCM(0x38,0);Delay5Ms();WriteCommandLCM(0x38,0);Delay5Ms(); WriteCommandLCM(0x38,1); //顯示模式設(shè)置,開始要求每次檢測(cè)忙信號(hào)WriteCommandLCM(0x08,1); //關(guān)閉顯示WriteCommandLCM(0x01,1); //顯示清屏WriteCommandLCM(0x06,1); // 顯示光標(biāo)移動(dòng)設(shè)置WriteCommandLCM(0x0F,1); // 顯示開及光標(biāo)設(shè)置} //按指定位置顯示一個(gè)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1if (Y) X |= 0x40; //當(dāng)要顯示第二行時(shí)地址碼+0x40;X |= 0x80; //算出指令碼WriteCommandLCM(X, 1); //發(fā)命令字WriteDataLCM(DData); //發(fā)數(shù)據(jù)} //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 &= 0x1;X &= 0xF; //限制X不能大于15，Y不能大于1while (DData[ListLength]>0x19) //若到達(dá)字串尾則退出{if (X <= 0xF) //X坐標(biāo)應(yīng)小于0xF{DisplayOneChar(X, Y, DData[ListLength]); //顯示單個(gè)字符ListLength++;X++;}}} //5ms延時(shí)void Delay5Ms(void){unsigned int TempCyc = 5552;while(TempCyc--);} //400ms延時(shí)void Delay400Ms(void){unsigned char TempCycA = 5;unsigned int TempCycB;while(TempCycA--){TempCycB=7269;while(TempCycB--);};}/********************************************************/void Conut(void)///COUNT1{time=TH0*256+TL0;TH0=0;TL0=0; S=(time*1.7)/100; //算出來(lái)是CMif((S>=700)||flag==1) //超出測(cè)量范圍顯示“-”{flag=0; DisplayOneChar(5, 0, ASCII[11]);DisplayOneChar(6, 0, ASCII[10]); //顯示點(diǎn)DisplayOneChar(7, 0, ASCII[11]);DisplayOneChar(8, 0, ASCII[11]);DisplayOneChar(9, 0, ASCII[12]); //顯示M}else{disbuff[0]=S%1000/100;disbuff[1]=S%1000%100/10;disbuff[2]=S%1000%10 %10;DisplayOneChar(5, 0, ASCII[disbuff[0]]);DisplayOneChar(6, 0, ASCII[10]); //顯示點(diǎn)DisplayOneChar(7, 0, ASCII[disbuff[1]]);DisplayOneChar(8, 0, ASCII[disbuff[2]]);DisplayOneChar(9, 0, ASCII[12]); //顯示M}}void Conut1(void)///COUNT1{time1=TH1*256+TL1;TH1=0;TL1=0; S1=(time1*1.7)/100; //算出來(lái)是CMif((S1>=700)||flag1==1) //超出測(cè)量范圍顯示“-”{flag1=0; DisplayOneChar(5, 1, ASCII[11]);DisplayOneChar(6, 1, ASCII[10]); //顯示點(diǎn)DisplayOneChar(7, 1, ASCII[11]);DisplayOneChar(8, 1, ASCII[11]);DisplayOneChar(9, 1, ASCII[12]); //顯示M}else{disbuff[0]=S%1000/100;disbuff[1]=S%1000%100/10;disbuff[2]=S%1000%10 %10;DisplayOneChar(5, 1, ASCII[disbuff[0]]);DisplayOneChar(6, 1, ASCII[10]); //顯示點(diǎn)DisplayOneChar(7, 1, ASCII[disbuff[1]]);DisplayOneChar(8, 1, ASCII[disbuff[2]]);DisplayOneChar(9, 1, ASCII[12]); //顯示M}}/********************************************************/void zd0() interrupt 1 //T0中斷用來(lái)計(jì)數(shù)器溢出,超過(guò)測(cè)距范圍{flag=1; //中斷溢出標(biāo)志}void zd1() interrupt 3 //T0中斷用來(lái)計(jì)數(shù)器溢出,超過(guò)測(cè)距范圍{flag1=1; //中斷溢出標(biāo)志}/********************************************************/void StartModule() //啟動(dòng)模塊{TX=1;//啟動(dòng)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_();TX=0;}void StartModule1() //啟動(dòng)模塊{TX1=1;//啟動(dòng)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_();TX1=0;}/********************************************************/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;Delay400Ms(); //啟動(dòng)等待，等LCM講入工作狀態(tài)LCMInit(); //LCM初始化Delay5Ms(); //延時(shí)片刻(可不要)DisplayListChar(0, 0, mcustudio);DisplayListChar(0, 1, mcustudio1);ReadDataLCM();//測(cè)試用句無(wú)意義for (TempCyc=0; TempCyc<10; TempCyc++)Delay400Ms(); //延時(shí)//DisplayListChar(0, 1, Cls);while(1){TMOD=0x11; //設(shè)T0為方式1，GATE=1；TH0=0;TL0=0;TH1=0;TL1=0;ET0=1; //允許T0中斷ET1=1; //允許T0中斷EA=1; //開啟總中斷 while(1){StartModule();// DisplayOneChar(0, 1, ASCII[0]);while(!RX); //當(dāng)RX為零時(shí)等待TR0=1; //開啟計(jì)數(shù)while(RX); //當(dāng)RX為1計(jì)數(shù)并等待TR0=0; //關(guān)閉計(jì)數(shù)Conut(); //計(jì)算delayms(80); //80MS StartModule1();while(!RX1); //當(dāng)RX為零時(shí)等待TR1=1; //開啟計(jì)數(shù)while(RX1); //當(dāng)RX為1計(jì)數(shù)并等待TR1=0; //關(guān)閉計(jì)數(shù) Conut1();delayms(80); //80MS/**/ }}} |
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