acs712仿真.rar_ACS712与单片机_acs712_acs712 仿真_acs712显示_acs712源代码51

#include<reg51.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int uchar code Disp_dot[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef}; //带小数点的共阴极显示代码 uchar code Dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40,0x00};//共阴极显示代码 uchar Display_Buffer[]={0,0,0,0}; bit Flag = 0; sbit CLK = P3^0; sbit ST = P3^1; sbit EOC = P3^2; sbit OE = P3^3; void DelayMS(uint t) { uchar i; while(t--) for(i=110;i>0;i--); } uchar ADRead() { uchar val = 0; ST=0;ST=1;ST=0; //启动A/D转换 while(!EOC); //等待转换完成 OE=1; val=P1; //读转换值 OE=0; return(val); } float IpTransform() { float Dat,Ip; Dat = (float)(ADRead()-32); if(Dat>=127) { Ip = (Dat/127 - 1)*30; Flag = 0; return(Ip); } else { Ip = (1 - Dat/127)*30; Flag = 1; return(Ip); } } void Display_Data() { float Idata; uchar DSY_dat; Idata = IpTransform(); Idata = Idata*10 + 0.5; DSY_dat = (uchar)Idata; //DSY_dat = (ADRead()-32); if(Flag) Display_Buffer[0]=10; else Display_Buffer[0]=11; Display_Buffer[1]=DSY_dat%1000/100; //显示百位 if(Display_Buffer[1]==0) { Display_Buffer[1]=Display_Buffer[0]; Display_Buffer[0]=11; } Display_Buffer[2]=DSY_dat%100/10; //显示十位 Display_Buffer[3]=DSY_dat%10; //显示个位 } void main() { uchar i; TMOD=0x02; //T1工作模式2 TH0=0x14; TL0=0x00; IE=0x82; TR0=1; while(1) { uchar Wei = 0xfe; Display_Data(); for(i=0;i<4;i++) { P2 = Wei; if(i==2) P0 = Disp_dot[Display_Buffer[i]]; else P0 = Dispcode[Display_Buffer[i]]; Wei = _crol_(Wei,1); DelayMS(10); } } } //T0定时器中断给ADC0808提供时钟信号 void Timer0_INT() interrupt 1 { CLK=~CLK; }