diantiti.txt

模拟电梯运行程序 功能如下： 初始化时

#include <regx52.h>
#include <absacc.h>

#define DAC1 XBYTE[0XBFFF]//Choose the DAC1
#define DAC2 XBYTE[0X7FFF]//Choose the DAC2

#define uchar unsigned char 
#define uint  unsigned int

uchar  floor[5]={0,0,0,0,0};//the floor flag
bit    up_down=1;//the direction of the elevator
//parameter for timing 20S
bit time_flag=1;
uchar t1_ms=0,t1_s=0;
uint led[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void
initIO (void)//I/O initial
{
 //T1 initial (wait 20S)
 ET1=1;//open the T1 interrupt
 TMOD=0x10;//set as autoreload  8-bit
 TH1=0X3C;
 TL1=0XB0;//65536-15536=50000
 
 EA=1;//open the CPU interrupt 
 DAC2=0X00;
 DAC1=0X00;
}
void
initTime(uchar tmp)
{
 t1_ms=40;
 t1_s=tmp;
 TH1=0X3C;
 TL1=0XB0;//65536-15536=50000
 time_flag=1;
 TR1=1;              
}
uchar test_up(void)//test(from down to up) which floor have guy waited
{
 
}
uchar test_down(void)//test(from up to down) which floor have guy waited
{
 
}
bit test_key(void)//test which floor has guy 
{
 
}
void go_where( uchar i )
{
 
   
}
uchar test_reach(void)//test reach which floor by the sensor
{
  
}
void
initState(void)
{
 uchar tmp;
 while ( test_key() )//wait until someone press the key
 {
  if (P2_0==0) tmp=0;
  if (P2_1==0) tmp=1;
  if (P2_2==0) tmp=2;
  if (P2_3==0) tmp=3;
  if (P2_4==0) tmp=4; 
 }
 go_where(tmp);
}
void wait_ask( uchar toFloor)
{
 
  
}
void timer1() interrupt 3
{
 t1_ms--;
 TH1=0X3C;
 TL1=0XB0;//65536-15536=50000
 if (t1_ms==0)
 {
  t1_ms=40;
  t1_s--;
  if (t1_s==0)
  {    
   TR1=0;
   time_flag=0;
  }
 }
}
int 
main(void)
{
 uchar m;
 initIO();
 initState();
 do
 { 
  test_key(); //test someone press the key or not
  m=test_reach();//test reach which floor by the sensor
  if( m < 5)
  {
   wait_ask(m);
   go_where(m);
  } 
 }while(1); 
 return 0;
}