00-磁场强度-522-11-38-180.zip_storyvjz_步进电机_电机_磁探测

/*************************************************** LCD1602 显示两行字符串 ****************************************************/ #include "reg51.h" #include "intrins.h" //由于在此源程序中用到_nop_();函数,所以必须加此头文件 #include "adc0832.h" #include "lcd1602.h" #define uchar unsigned char #define uint unsigned int sbit keyq=P2^4; //确定按键 sbit keyd=P2^5; //方向键 sbit keyi=P2^6; //加1按键 lcd_wcmd lcd_wdat sbit keya=P2^7; sbit m1=P1^4; sbit m2=P1^5; sbit m3=P1^6; sbit m4=P1^7; uchar pos; //步进电机 bit motorflag; bit dir; void delayms(uint ms) { uchar i; while(ms--)for(i=0;i<120;i++); } void keyset() { if(keyq==0) { delayms(10); if(keyq==0) { while(keyq==0); motorflag=~motorflag; } } if(keyd==0) { delayms(10); if(keyd==0) { while(keyd==0); dir=~dir; } } } void t0isr() interrupt 1 { TH0=(65536-1000)/256; TL0=(65536-1000)%256; if(motorflag) { switch(pos) { case 0:m1=0;m2=1;m3=1;m4=1;break; case 1:m2=0;m2=0;m3=1;m4=1;break; case 2:m1=1;m2=0;m3=1;m4=1;break; case 3:m1=1;m2=0;m3=0;m4=1;break; case 4:m1=1;m2=1;m3=0;m4=1;break; case 5:m1=1;m2=1;m3=0;m4=0;break; case 6:m1=1;m2=1;m3=1;m4=0;break; case 7:m1=0;m2=1;m3=1;m4=0;break; } if(dir==0) { pos++; pos%=8; } else { pos--; if(pos>7)pos=7; } } } //*********主函数***************** void main(void) { uchar adval; int gs; float temp; uchar dis[5]; TMOD=0x01; TH0=(65536-1000)/256; TL0=(65536-1000)%256; TR0=1; ET0=1; EA=1; lcd_init();// 初始化LCD1602 delay(10); Print(0,0," Welcom to use "); Print(0,1,"magnetic: GS"); while(1) { keyset(); adval=read0832(); //采集磁场强度 temp=60.0*(float)adval/51.0-150.0+0.5; gs=(int)temp; if(gs<0) { gs=~gs+1; dis[0]='-'; } else dis[0]=' '; dis[1]=gs%1000/100+0x30; dis[2]=gs%100/10+0x30; dis[3]=gs%10+0x30; dis[4]=0; Print(9,1,dis); delayms(50); } }