超聲波模塊程序

1、超聲波模塊程序#include#defineucharunsignedchar ttdef ineuintunsignedint inttime;intsucceed_flag;uchartimeL;uchartimeH;sbitTrig=PrO;sbitEcho=P32;ucharcodetable j = 0 x3f, 0 x06, 0 x5b, 0 x4f, 0 x66, 0 x6d, 0 x7d, 0 x07, 0 x7f, 0 x6f);uchar code tabi el = 0, 1, 2, 3, 4, 5, 6, 7);/voiddelay(uintz)(uintx, y;fo

2、r(x=z;x0;x-)for (y=110;y0;y);/voiddelay_20us() uchara;for (a=0;a100;a+); t 1 viw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw vaw vaw viw vaw viw viw viw vTW顯示數(shù)據(jù)轉(zhuǎn)換程序voiddisplay(uinttemp) ucharg

3、e, shi, bai;bai=temp/100;shi=(temp%100)/10;ge=temp%10;P2=tablel2;Portablege;delay(l);P2=tablell;PortableshiJ;delay(l);P2=tablel0;Portablebaij;delay(l); I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I voidmainO uintdistance

4、;Trig=0; 首先拉低脈沖輸入引腳EA=1;打開總中斷0while EA=0;關(guān)總中斷丁班8二1；超聲波輸入端delay_20us (); 延時(shí) 20us口8=0;產(chǎn)生一個(gè)20us的脈沖while(Echo=0);等待Echo回波引腳變高電平 succeed_flag=O; 清測量成功標(biāo)志EA=1;EXO=1;打開外部中斷0TH1=O;定時(shí)器1清零TL1=0;定時(shí)器1清零TF1=O ;計(jì)數(shù)溢出標(biāo)志TR1=1;啟動定時(shí)器1delay (20);等待測量的結(jié)果TR1=0;關(guān)閉定時(shí)器1EX0二0;關(guān)閉外部中斷0if(succeed_flag=l)(time=timeH*256+timeL;dis

5、tance=time*O. 0172;厘米) if(succeed_flag=0) distance=0 ;沒有回波則清零/test=! test; 測試燈變化display(distance); I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 外部中斷0,用做判斷回波電平voidexter () interrupt。外部中斷 0 是 0 號EX0=0;關(guān)閉外部中斷 t imeH=THl; 取

6、出定時(shí)器的值timeL=TL1; 取出定時(shí)器的值succeed_flag=l; 至成功測量的標(biāo)志f ff f vw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vw vaw vaw viw vaw vw viw viw vgw w vTW vaw定時(shí)器1中斷,用

7、做超聲波測距計(jì)時(shí)voidtimeri()interrupts/TH1=O;TL1=O;1602液晶顯示的超聲波模塊程序接口程序里邊都有、#include/#include#include#defineucharunsignedchar#defineuintunsignedint sbitlcdrs=P23;sbitlcden=P2*2;sbittrig=P2P; 超聲波發(fā)送sbitecho = P3-2; 超聲波接受/P0 DB0-DB7uchardi s =，Di sp_HC-SR04;ucharnum=”0123456789”;uintdistance;voiddelay(uintz)ui

8、ntx, y;for(x=z;x0;x-)for(y=121;y0;y);TM0D=0 x09;TRO=1;THO=O;TLO=O;uintHC_jisuan()(uintdist, timer;timer=TH0;timer=8;timer=timer iTLO;dist二timer/53;晶振 11. 0592MHz 距離 cm二微秒 us/58returndist ;/l個(gè)機(jī)器周期是12個(gè)時(shí)鐘周期timer*12/(58*11. 0592)=timer/53)voidHC_run()uinttempH=OxOO, tempL=OxOO;THO=O;TLO=O;trig=O;trig=l;

9、delay (1);trig=0;while(TH0-tempH!=0 TL0-tempL!=0) I I (TH0=0&TL0=0)(tempH=TH0;tempL=TL0;)delay (1);void 1 cd_write_com(ucharcom) /LCD 寫指令(lcdrs=0;P0=com;delay (1);lcden=l;delay (1);lcden=O;voidlcd_write_data(uchardate) /LCD 寫數(shù)據(jù)(lcdrs=l;PO二date;delay (1);lcden=l;delay (1);lcden=0; voidlcd_init O/LCD

10、初始化lcden=O;lcd_write_com(0 x38);1c d_wr i t e_com(0 x0c);1c d_wr i t e_com(0 x06);lcd_write_com(0 x01);voidlcd_display(uchartemp)(uinti;1c d_wr i t e_com(0 x82);for(i=0;i12;i+)(lcd_write_data(disi);)1c d_wr i t e_com(0 x80+0 x41);lcd_write_data( D,);lcd_write_data( i);lcd_write_data(, s);lcd_write_data(t);lcd_write_data (, a );lcd_write_data (, n);lcd_write_data(, c );lcd_write_data(, e);lcd_write_data(：);1c d_wr i t e_dat a(numt emp/100);lcd_write_data(numtemp/10%10);lcd_writ