acq.rar_stc90c58rd+

#include <stc.h> #include <intrins.h> /* use _nop_() function */ #include <absacc.h> /*extren I/O address function*/ /*串口参数*/ #define ID 0xaa //本机ID char idata buf_rece; //接收到数据 char idata buf_send[4];//侍发送的数据 /*A/D采样参数*/ sbit CS=P2^7; //max197片选 sbit HBEN=P1^1; //读数据高|低字节选择 sbit INT=P1^0; //AD转换完成，低电平有效 unsigned int idata data12;//AD转换结果数据 unsigned int idata datach1;//channel1采集到的数据 unsigned int idata datach; unsigned long idata an; void scan(char channel); void UartInit(void); void binray_to_octoble(unsigned int number,char *p); main() { UartInit(); while(1); } /*串口初始化*/ void UartInit(void) //9600bps@11.0592MHz { PCON &= 0x7F; //波特率不倍速 SMOD=0 SCON = 0x50; //8位数据,可变波特率 AUXR &= 0xBF; //定时器1时钟为Fosc/12,即12T AUXR &= 0xFE; //串口1选择定时器1为波特率发生器 TMOD &= 0x0F; //清除定时器1模式位 TMOD |= 0x21; //设定定时器1为8位自动重装方式 TL1 = 0xFD; //设定定时初值 TH1 = 0xFD; //设定定时器重装值 ET1 = 0; //禁止定时器1中断 TR1 = 1; //启动定时器1 EA=1; ES=1; } /*串口中断程序*/ void Uart_Interrupt(void) interrupt 4 { int i; int j; RI=0; buf_rece=SBUF; an=0; for(i=0;i<100;i++) { scan(buf_rece); an=an+data12; } datach1=(unsigned int)(an/100); datach=(unsigned int)((float)datach1*(float)5000/(float)4096); binray_to_octoble(datach,buf_send); EA=0; for(j=0;j<4;j++) { SBUF=buf_send[j]; while(TI==0);TI=0; } EA=1; } /*max197采集数据*/ void scan(unsigned char channel) { unsigned char conword,low8,high4; conword=0x40+channel; //CS=0; XBYTE[0x7fff]=conword; _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); if(INT==1); else {HBEN=0; low8=XBYTE[0x7fff]; //读取低8位 HBEN=1; high4=XBYTE[0x7fff]&0x0f; //读取高4位 // high4=0x0f; // low8=0x9f; //CS=1; data12=high4*256+low8; } } void binray_to_octoble(unsigned int number,char *p) { if(number>=1000) { *p=number/1000; *(p+1)=number%1000/100; *(p+2)=number%1000%100/10; *(p+3)=number%1000%100%10; } else if(number>=100) { *p=0; *(p+1)=number/100; *(p+2)=number%100/10; *(p+3)=number%100%10; } else if(number>=10) { *p=0; *(p+1)=0; *(p+2)=number/10; *(p+3)=number%10; } else { *p=0; *(p+1)=0; *(p+2)=0; *(p+3)=(char)number; } }