proteus仿真adc0808多通道数据采集

#include "reg51.h" #include "absacc.h" #define T0_H ((65536-5000)/256)//定时显示刷率 #define T0_L ((65536-5000)%256) #define T1_H ((65536-1000)/256)//采样周期 #define T1_L ((65536-1000)%256) unsigned char value[4]; unsigned char data ch=0; unsigned char dch=0; static int d,i,n,k=0; unsigned int Adress; unsigned char code seg_code[]={0xc0,0xF9,0xA4,0xB0,0x99,//0-4 0x92,0x82,0xF8,0x80,0x90,//5-9 0x88,0x83,0xC6,0xA1,0x86,//A,b,C,d,E 0x8E,0xFF,0x0C,0x89,0x7F,0xBF//F,空格,P,H,.,- }; unsigned char bit_code[]={0x01,0x02,0x04,0x08}; void main() { IT1=1;EX1=1; IT0=1;EX0=1; TMOD=0x11; TH0=T0_H; TL0=T0_L; TH1=T1_H; TL1=T1_L; ET0=1;ET1=1;TR0=1;TR1=1; EA=1; while(1); } void EX1_INT() interrupt 2 { Adress=P2<<8; Adress=Adress&0x7fff; value[ch]=XBYTE[Adress]; ch++; if(ch>3) ch=0; } //根据按键切换显示通道 void EX0_INT() interrupt 0 {dch++; if (dch>3) dch=0; } //显示通道dch的AD转换值 void T0_INT() interrupt 1 { TH0=T0_H; TL0=T0_L; d=n%10;n=n/10; P2=0; P1=seg_code[d]; P2=bit_code[k]; k++; if(n==0) { n=value[dch];k=0; } } //每隔20ms检测一个通道 void T1_INT() interrupt 3 { Adress=P2<<8; Adress=Adress&0x7fff; XBYTE[Adress]=ch; TH1=T1_H; TL1=T1_L; }